100SILEX, de 0 ŕ 100 s: Then
1522 5 Simple steps to secure TT-RSS reader
secure tt-rss, tt-rss security
5 Simple steps to secure TT-RSS reader
July 27, 2015 by Anand Leave a Comment
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We recently presented Tiny Tiny RSS to you as a great alternative to Google reader, which is one more way you can extend the functionality of your home server or your hosting space. Hopefully, you already exported your data from Google Reader. In this post, we will show you how to secure TT-RSS reader to prevent unauthorized access. Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible. As we previously explained, it makes an ideal candidate to replace Google Reader. While there are services like Feedly and Newsblur grabbing the crowd Google Reader, which some of you may prefer, there are a group of people who would like to run a RSS reader on their own server and keep things private. Assuming that you have already installed Tiny Tiny RSS on your alternative to Google reader or hosting space, we will now show you how to secure TT-RSS reader.
Secure TT-RSS Reader
One of the main reasons to move to an RSS aggregator like TT-RSS is maintaining your privacy. So if you do not secure TT-RSS reader well you are not only making your data available public but also making your system vulnerable to potential attacks. Choosing a strong username and password while setting your TT-RSS is the first basic thing that you can do to secure TT-RSS reader. Listed below are few more ways you can increase TT-RSS readerâs security.
1. Rename TT-RSS Folder
One of the first lines of defense is to not use tt-rss in your URL to access your TT-RSS reader. To do this on your hosting account, use a folder name other than tt-rss while installing TT-RSS. On your Linux home server, edit /etc/tt-rss/apache.conf and change the first /tt-rss to something else. An example is shown below.
TT-RSS Rename URL
TT-RSS Rename URL
After making the change, restart your TT-RSS and Apache to apply the changes:
sudo service tt-rss restart
sudo serivce apache2 reload
Your TT-RSS reader is now available through the new URL (example: http://mydomain.com/myreader) only.
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2. Enable SSL
Accessing TT-RSS through http sends all information as unencrypted data. This could mean less privacy due to potential sniffing. The solution is to encrypt the data during transfer, which makes sniffing by hackers harder. To enable and enforce HTTPS access on Linux servers with Apache, install the following run-time libraries:
sudo apt-get install libssl0.9.8 libpam0g openssl
Restart your Apache server as shown above. You should now be able to access your TT-RSS reader with HTTPS. Note that you may have to have a SSL certificate generated. Refer to Apache documentation if you want to generate your own certificate. By default, the system will install self-signed certificates for you. These certificates are likely to raise warnings when you point your browser to the site.
3. Disable Single User Mode
By default the single user mode is already disabled (in /etc/tt-rss/config.php). Enabling single user mode will also disable TT-RSS login system. Therefore, keep the single user mode disabled.
Disable Single User Mode
Disable Single User Mode
A better way to make it a single user system is by limiting the number of registrations to 1 as described below. For whatever reason, you still want to enable single user mode, make sure you implement Apache Authentication method described below.
4. Self Registrations
Self registrations allow a visitor to register themselves, which could reduce TT-RSS security. If your TT-RSS will be for personal use only, then you may want to disable user registration by setting âENABLE_REGISTRATIONâ to âfalseâ.
TT-RSS Self Registrations
TT-RSS Self Registrations
To further secure TT-RSS Reader, uou may also want to change âREG_MAX_USERSâ to â1â to make your account the only account on TT-RSS.
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5. Apache Authentication
Last but not the least, enable Authentication. This is even more important if you have enabled âSingle User Modeâ describe above. Every time you access TT-RSS, you will be asked for a username and password as shown in the picture below:
Secure TT-RSS Reader
On your hosting account this equivalent to password protecting a directory, in this case the TT-RSS directory. To do this on your Ubuntu server, you will have to create a .htpasswd file. More information is available in Apache documentation. But the easiest way to achieve this is to use one of the htpasswd generators available online.
After you enter the username and password two code blocks will be generated. Copy the contents of the .htpasswd code block and save it to /etc/apache2/.htpasswd_ttrss. Next, copy the contents of the .htaccess code block and add it to /etc/tt-rss/apache.conf as shown below:
TT-RSS Apache Authentication
TT-RSS Apache Authentication
Save and exit. Restart both TT-RSS and Apache previous shown above. You should be prompted for a password every time you try to access TT-RSS. Some may think that this double authentication method is an extra inconvenience. But I would rather be safe than sorry.
Go ahead, secure Tiny Tiny RSS Reader and enjoy reading articles on your private secure RSS Reader.
1502 Phone-Reluctant Introverts, There is Nothing Wrong With You
As I sit down to write this blog post there is the dreaded sound of a prolonged vibration as my phone skids, bouncing and sporadically across my desk. This is perfectly ideal and ironic distraction that actually befits the very thing I am thinking about and from which it is distracting meâŚ Itself!
I have always had an absolute detest for talking on the phone. And Iâll say now that it has nothing whatsoever to do with the person at the other end, I just find it a horrible tool for communicating with.
I think I probably am, and always have been worse than most people when it comes to using the phone (in the traditional sense, ie speaking to people) but if you can identify with any of this then read on. If youâre thinking, âwhat are you on about, I love the phoneâ then youâll probably just get confused, but if you also have friends who ânever answer the phoneâ then this might help you to understand them a bit better.
I canât sum it up any better than Sophia Dembling in her article, 9 Signs that You Might Be an Introvert:
1408 Âť Cut simple SMT Stencil from common aluminum flashing on your CNC Animodule.com
Cut simple SMT Stencil from common aluminum flashing on your CNC
Hereâs a quick photodoc of how I made a reusable SMT stencil from some aluminum siding I had laying around. Itâs very simple to assemble and works great. Dirt cheap too.
I had picked up a roll of aluminum flashing a few years ago to flash some chimneys I rebuilt/repointed and was curious to see how it would hold up as an SMT stencil.
To buy an SMT stencil frame is near $1000 so I didnât have much to lose if it didnât work out.
I cut the frame out of some birch plywood since I had some handy. Really any sturdy frame would do the trick. You could easily glue one together out of some 1x or trim board.
I put a thicker sheet of aluminum down underneath the flashing to give the CNC endmill something sturdy to cut against and clamped it down stretched and tight. My thought there was that If I cut straight on the MDF it might push on the flashing and bend it before it cut through.
A 1mm endmill did the trick. Each pass was .05mm deep.
I pulled the Flashing tight and stapled it to the frame. No rocket science here. I taped up the inside edges so no solderpaste could squeeze between the frame and the stencil.
I had some old screen print hinge boards so I just attached this frame the same way I would a screen print stencil.
The only fiddly part was aligning the first PCB. You have to push around a little and lift the stencil and fiddle with it a little bit. Once I get all the pads lined up correctly I hold it in place and trace around it with a thin tip sharpie marker.
Then you place the PCB in the outline. If you have the height adjusted correctly the stencil is sturdy enough to hold the PCB in place while you print the Solderpaste on it. just hold the stencil frame down and it pushes down on the PCB.
I used a flexible putty knife as a squeegee. It worked fine.
Cleanup was a breeze. Just scrape it off, unscrew the stencil frame from the hingeboard and stick it in the corner till you are ready to do another run.
1386 Retro Synth Ads: Sound Master Memory Rhythm SR-88, Keyboard 1982
Sound Master Memory Rhythm SR-88 drum machine 1-page advertisement from page 67 in Keyboard Magazine August 1982.
Hmmm. Not sure how I feel about this ad. There just seems to be a lot going on.
For example, am I supposed to know who "The Rhythm Section" is? The fact that they include themselves in an already long ad title suggests they must be some kind of a big deal. And then you find their name again in the bottom left-hand corner:
"The SR-88. Another innovative product from The Rhythm Section by Sound Master Distributed exclusively by JTG of Nashville."
So, let me get this straight. JTG of Nashville is the distributor of the SR-88 which was created by The Rhythm Section which is somehow owned or operated by Sound Master.
That is waaaaay to much information. Sounds like something political is going on there, and readers unfortunately get stuck in the middle of it.
There also seems to be a lot of ad-copy which actually doesn t give me much information. Reason #4 gives readers the most info including instant stop/start, variable tone and output switches, and a write/play mode indicator. The most I glean out of the four other reasons put together is: 16 rhythms, clock pulse and a price of under $200.
The actual specs that are probably most important to potential buyers are inexplicably shoved into the bottom right-hand corner.
Luckily for me, there are a few resources on the Web with more information about this beast. Unluckily for blog readers, as soon as I started looking for more info, I got swept up in a certain SR-88/Boss DR-55 controversy.
Comparing the SR-88 and Boss DR-55
One of the first Web sites I hit while looking for info on the SR-88 was Dubsounds.com. The site includes a great little write-up on the SR-88, but, more interesting was finding out about a little controversy about whether the SR-88 or the very similar Boss DR-55 came out first.
The two do seem mighty similar in functionality. For comparison purposes, I did a quick search on MATRIXSYNTH to find more photos. . A great photo of a gray SR-88 can be found in this December 2005 SR-88 MATRIXSYNTH auction post and the less common, but definitely more cool, blue SR-88 can be seen in this January 2011 MATRIXSYNTH auction post.
Comparing the two to the Amdek RMK-100
Interestingly, it s not just these two machines that look and function similarly. In this May 2009 MATRIXSYNTH SR-88 auction post commenter "PAC" notices:
"Interesting. I have an Amdek RMK-100 (sold as kit), very similar!"
Never heard of it, so I Googled "Amdek RMK-100" to see just how similar it was to both the DR-55 and the SR-88. Turns out (according to the Internet) that Amdek products were made by Boss/Roland back in 80s, and, not only that, but that the RMK-100 is actually the kit version of the Boss DR-55. Makes sense on why it would also be similar to the SR-88.
I found an ebay auction for an Amdek RMK-100 going on right now with a great photo of the front panel (see below), and indeed it does share a lot with the DR-55 and SR-88 - but definitely not identical to either one.
For example, it looks like the Amdek and SR-88 share a similar filler function that as far as I can tell is not available on the DR-55. And the DR-55 and the RMK-100 share a similar accent function that I don t see on the SR-88.
Now where does the Electro Dynamics Corporation Programmable Rhythm SR-99 fit in?
I also came across another machine with similar features - the Programmable Rhythm SR-99. No - not manufactured by Sound Master, but by Electro Dynamics Corporation. And, it too resembles the others in functionality, and especially the SR-88 in design also.
I ve included a row of photos below to help make the comparison between the two. The SR-88 photo is from the 2005 MATRIXSYNTH auction post and the EDC SR-99 photo is from the excellent BigBlueWave.co.uk site. I ve also thrown in a photo from another recent E-bay listing that included both - plus boxes and manuals! Sick!
Obviously, Sound Master and EDC are somehow connected, although I can t find any info on the Internet concerning these two companies. I do know that they were both advertising separately in Keyboard Magazine in late 1983, making it unlikely that one of the companies changed their name to the other. Anyone know anything?
And then there is the Clef Master Rhythm...
Now, I m going to throw in a late entry. It s Sunday night, and I just came across this August 2010 MATRIXSYNTH auction post for the Clef Master Rhythm. It not only shares part of the name of one of the other units ("Master"), it too has many features of the other rhythm machines, and identical innards as the DR-55, but is expanded to include even more sounds:
"This is essentially a fully expanded Boss DR-55 feature-wise and tone-wise. The circuits are identical (schematically and tonally) to the Boss DR-55, but the Clef Master Rhythm gives you way more instruments than the Boss DR-55..."
Interestingly, according to the post, it pre-dates the Boss DR-55 - and also came in a kit form like the Amdek.
"The Clef Master Rhythm came out a little before the Boss DR-55 in late 1979/early 1980. It was sold in two versions and available in greater quantities in Europe than in the United States. One version was a kit that the user put together and another one was a prebuilt machine."
A photo from the MATRIXSYNTH post really helps show the similarities in functions with the others:
What does it all mean?
So, looking at all five machines, its almost like there was a rhythm machine salad bar of some sort in Japan, and each company stepped up to it and picked out which features they wanted to include in their product.
And that begs the question - since we know there was a kit form available and there are claims that the Clef Master even has the same circuits as the DR-55, could all five products (and probably others) have used the exact same internal parts - each company choosing which features to include and then customizing in their respective rhythm machine? And if so, were those parts supplied by Amdek, or did all five get their internal parts from some other manufacturer?
And if that is the case, then the question of whether the SR-88 or DR-55 came first doesn t really matter much, since it is likely that the kit components would have been available first. Plus, we have that one auction post with the claim that the Clef Master came out before the DR-55 - making it all even more confusing to figure out.
Or, am I totally off the mark on all this? Were they all created separately? Maybe I ve just been fixated on this a little too much...
I ll keep on looking for more info on these companies and any connection they might have, but if anyone want to buy all four and open them up to take a look - it would be muchly appreciated. :D
Posted by RetroSynthAds at 12:05 PM
Labels: 1982, amdek, clef master, dr-55, drum machine, electro dynamics corporation, keyboard magazine, rmk-100, Sound Master, sr-88, sr-99
Here s a funny thing - I seem to remember Clef in the early 1980s as a British company that made electronic pianos (touch-sensitive ones!) in kit form. Deep in the back of my mind I recall seeing them at a music fair in London with a couple of their pianos and some drum machines including a prototype drum/bass/chord sequencer called something like a "Band-Box". But it WAS a long time ago.
February 12, 2012 at 12:36 PM
Looks like (for once) my memory didn t fail me. Here is a 1982 ad for Clef Electronics showing all the products I mentioned, plus a natty-looking little monosynth! BTW, I owned an EDC SR99 drum machine in the mid-1980s, but replaced it with a Yamaha RX-21 a couple of years later.
February 12, 2012 at 12:46 PM
1176 CommunityWiki: Tags Vs Mnemonics
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1132 Mammoth Modular Synthesizer At MIT Museum
Just got an update from Joe Paradiso on his homebuilt mammoth analog modular synthesizer. Heâs installed it in the MIT Museum and has completed a fairly epic patch which you can listen to (24 hours a day!) here.
Joe will be at the museum this Thursday and Friday (2/23 and 2/24) at 1pm, demoing the synth to visitors, so be sure to stop by if youâre in the neighborhood. Hereâs some info from Joe on the construction and inspiration for the latest patch.
The second patch I made at the MIT Museum is totally done now, and you can hear it live on the stream. Listen to it at http://synth.media.mit.edu, and let me know what you think if youâre inclined â itâs running in physical space in Quad, of course â stereo on the stream. Note that this one has absolutely NO sequencer of any sort on it â all of the patterns you hear were made entirely from hand-patched logic (counters, ands, ors, flip flops, ring counters, rate multipliers, etc.). Itâs an entirely different kind of composition environment from the norm â you really need to simultaneously be an engineer while being an artist and something of a performer. The inspiration for this patch started with the Boredoms â if you donât know who they are, you should (http://www.boredoms.jp/). In particular, I was thinking of SuperRoots 9. The beauty of the patching interface is that you can never exactly nail what you start out to attain, but on the other hand, you get drawn into places you wouldnât have normally gone once you start. The 3 drummers that Yamantaka Eye performs with lay down a compelling rhythm that my hand-patched logic and analog processing canât match, of course. But this patch definitely has a strange jumpy groove once it gets into gear, and the 2-chord pad is archetypical too. Yes, Boredoms rule today! BTW, this patch took every cord I had, plus a good 30 more wires just shoved into the pin jacks â check out the photos here and here â the latter shows the kind of logic section patching complexity you need to build a sonic environment like this one.
Iâm ripping this baby out next Thursday, as Iâll be at the museum next Thursday and Friday (2/23 and 2/24) at 1pm to demonstrate the synthesizer to visitors â doing some very simple patches and showing off what the modules do in case anybody is interested in this. It will run continuously until then.
Otherwise, enjoy the stream â there are moments of introspective drift in-between wild percussion (yes, Boredoms!). I might pull the percussion line back so it doesnât come so often or regularly, but itâs essentially a wrap.
1131 Photos: The Best Facial Hair in the Civil War
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1127 Eurorack DIY
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1052 Lab Overview
Not that I recommend this level of excitement to everyone, but this is my lab. It is my basement, and as you may note from the disheveled ceiling tiles up above, having this much equipment has actually forced me to purchase a separate AC unit for the basement. So my trendy two-zone AC house has now magically become a three-zone AC house. Fortunately, I didn't need a furnace for down here. Equipment is great in the winter to heat your house!
The lab has taken on a life of it's own over time... It started out as a single standard 7-foot 19" rack. Then it grew to two standard racks... Then it changed into three Ortronics Mighty-Mo 19" rack systems (because those are cool). As seen now, it has changed yet again into four separate rack cabinets. The cabinets are a bit pricey, so they aren't all the same vendor. Note to all, even if you find a really good price on Ebay, be aware that you still have to ship them, and they weigh a LOT! (This means, have lots of friends and lots of pizza/beer!)
Nov'04 -- Well, things have moved even more! The equipment was beating the AC unit that ran for the basement. So instead of being a three-level, three-zone house, we had to upgrade to being a four-zone house. Go figure. As noted above, I would not recommend this path to anyone unless you have a good amount of business to drive it! All of the equipment here is used for testing and lab purposes, but easily serves as Proof of Concept lab for many consulting clients of mine. The recent change was that the crawlspace area under the kitchen area was excavated out and had a concrete floor poured making an enclosed little room. In addition, a large air handler (AKA Mongo AC Unit) was put into that specific room and a door was installed for access and physical separation! While all a very interesting project, it is a pain to move any equipment that you amass, so definitely plan ahead for this sort of activity!
1050 Frieze Magazine | Comment | Conrad Schnitzler
In the early 1960s, Conrad Schnitzler met Joseph Beuys in a bar in DĂźsseldorf. Beuys was at the start of his legendary run as a professor of âmonumental sculptureâ at DĂźsseldorfâs Kunstakademie. Schnitzler was a sailor, who specialized in fixing the engines of merchant ships in nearby ports. Beuys took a liking to Schnitzler, inviting him to be one of his students. Schnitzler enrolled at the Kunstakademie, but dropped out a year or two later, much to Beuysâ dismay. If, as Beuys famously entreated, âeverybody is an artistâ, why did he have to go to school to be one? Schnitzler travelled for a few years, making metal sculptures and performance art. Then he took the metal sculptures he built during his time with Beuys, which he had covered in stark planes of black and white paint, dragged them all to a grassy field, and left them there.
980 Fake Synths Process Post ÂŤ Shout Out Out Out Out
For our Coming Home video we needed some burnable synths. Being a handy guy with a skill saw and plumb bob I whipped up three fake keyboards based on the Sequential Prophet 5, The Moog Voyager and a large 5U modular. It nearly destroyed my mind and I ended up basically pulling 3 all-nighters to finish in time. Anyway, the plan was to make them look as authentic as possible and to that end, I think we succeeded. Here are some pics of the processâŚ
What an amazing instrument! The DSI Evolver has the signature "old school" timbre down pat as well as being able to provide digital timbres reminiscent of the Waldorf Q. There's certainly a "rougher" side available as well with all the feedback implementation and controled distortion. Being able to make PM type plucked and blown sounds is just icing on the cake. Dave Smith should be commended for a job well done. Just have a look at the Panel Layout to get a taste of what this beauty can dish out - the controls are pretty much laid out in the form of a signal path graphic. Be sure to visit Dave Smith's Website!
Evolver Sound Examples
There are a lot of demos of the Evolver on the web showcasing the gutsy harsh sounds of this beast so I decided to post demos of some of my own patches as examples of the "softer" more "vintage" side of the Evolver's timbre. I make no apologies for these unpolished recordings - these are merely sound samples ;)
Resonant Plucked Pad
This pad shows some of the rich resonant nature of the filter.
This is a simple analog brass lead patch.
A fun patch with lots of motion made using my "Audio-rate Filter FM" programming tip below.
A nice bland-vanilla pad ^_^
What can I say? I love pads...
For more MP3 demos showing the full gamut of sounds the Evolver and Polyevolver are capable of, please visit the excellent website of Stefan Trippler!
The Definitive Guide to Evolver
This rather in-depth guide to the Evolver goes places and does things a mere manual can't. This labor-of-love was crafted by Anu Kirk and with his kind permission, I am offering this fantastic resource right here in PDF format!
A much smaller version (400K) is here but it dosen't have internal hyperlinks.
Here's a fun repository of programming tips for the Evolver in all its incarnations. Please email me if you would like to add some.
Fingered Wave Sequence
Submitted by Dave Bryce. This brilliant technique has to be heard to be believed! Plus, its one of those cool things unique to the Evolver! This particular tip is so full of detailed information that it gets its own page!
Audio-rate Filter FM
Submitted by James Maier. Use the "Audio Mod" parameter in the Filter section to frequency-modulate the cutoff with the analog oscillator. Add resonance until the filter is just on the edge of oscillation then mod the cutoff with just a little triangle LFO set at a very slow speed. Amazing moving chorusing pad and lead sounds can be made this way.
Fatter Bass/Pad Sounds
Submitted by Mike Peake. Set the same sound in both channels (detuned saws, for instance). With the filters at the 24dB setting, increasing resonance cuts the passband as on the Moog filters. Set Envelope 3 to minimum attack, maximum decay and release, and sustain to maximum. This "creates" an offset, a continuous "on" signal while the keys are gated. Modulate one filters' resonance up (just one), or of the overall resonance level is high, us it to modulate one filters' resonance to its minimum. You get the resonant character plus the size of the non-resonant filter. Use Tri and Sine waves on that side too.
Submitted by James Maier. The Evolver can make many ultra-bright and buzzy sounds due to its extensive feedback and distortion stages but sometimes people miss the subtler side of the beast. For a warmer sound use little or no distortion, close the filter just a bit and turn off the feedback and delay lines. I've managed to get dead-on Prophet5 timbres this way.
Submitted by Mike Peake. Set the envelopes to linear, and use a Mod to modulate AmpEnv All by itself (lin through log responses with positive and negative self-modulation).
This is of course fun on the filter envelopes as well.
More Vintage Character
Submitted by Mike Peake. Oscillator Slop, set at 5, doesn't come close to the Moog and other old-timer movement, so add slight (1 or 2) LFO to pitch modulations, with individual LFOs per oscillator, and a touch of LFO to LFO rate modulation. A tad of Envelope 3 to pitch helps as well.
Don't miss out on the 12dB filter setting
Submitted by Mike Peake. The 24dB setting has much more resonance, but the 12dB setting can sound nice and plucky, and do nice slightly fuzzy pads etc.
DSI Evolver Waveshape Charts
Below are charts I've assembled of the digital waveforms and their spectra as currently used in the DSI Evolver synthesizers. Originally these waves were unique to the SCI ProphetVS vector synth.
I find these waveform/spectra graphics really usefull when programming sounds - maybe you will as well. Pay special attention to the spectra as this info is sometimes much more useful than waveshape in determining actual timbre - even before you hear what the waveform sounds like.
These are designed to be downloaded (right-click & "save target as"), and printed at 300dpi on 8.5" x 11" pages - don't resize these images before printing or you will lose useful detail. Use them as a handy refrence. This information was cobbled together from various scattered sources (with very special thanks to Achim Gratz!).
Any errors or omissions are my own. ^_^
As far as the origin of these waves is concerned, one of the original VS engineers, Chris Meyer, said:
"The original waves for the VS were created three ways - extracting single-cycles from sampled sounds, using a custom additive synthesis program, and using a program Josh (Josh Jeffe, another VS engineer) slapped together called "Hacker" where you could draw the waveshape. These were fed straight from the computer through the filter and VCA of a Pro-One to figure out what they might sound like in a patch. And by the way, no PPG waveforms appear inside the VS - we had access to them, but in the end our consciences got the better of us. We did steal some waveforms from the Korg DW6000, but only by looking at the harmonic drawings on the front panel and trying to imitate them in our additive synthesis program."
Modulation Matrix "Cheat Sheet"
This chart shows all the modulation routing available on the Evolver. This same info is available in the manual but this can be printed on a single sheet of paper as a handy refrence!
These I created just for fun and desktop "beautification" ;)
1280 X 1024
1024 X 768
800 X 600
812 ED102 - Octave-Volts-Hertz
The ED102 borrows heavily from the Korg MS-02â˘ although it was developed independently of Korg Inc.
Korg and MS-02 are the trademarks of Korg Inc.
Among presently available music synthesizers, there are two different types of control system used for controlling devices such as the VCO (voltage controlled oscillator) and VCF (voltage controlled filter). These two systems been: Hertz/Volt (Hz/V) and Octave/Volt (Oct/V).
The graph to the left shows the relationship between the VCO oscillator frequency (pitch) and the control voltage (keyboard output voltage). The straight line on the graph is from a synthesizer in which there is a one octave change for every one volt change in the control voltage (Oct/V). In contrast, the curved line on the graph is the control voltage from a synthesizer in which the VCO frequency is proportional to voltage (Hz/V system).
To allow these systems to work together you will need a module like this ED102. The built-in, fully adjustable log amp and anti-log amp ensure complete system flexibility and compatibility between any presently voltage controlled synthesiser.
The Hz/V system
In the Hz/V system, the VCO oscillator frequency is proportional to the control voltage so that, for example, if the frequency of a VCO increases by 100Hz for every volt applied, then applying 1V, 2V and 3V to this VCO would generate 100Hz, 200Hz and 300Hz respectively.
The Oct/V system
In the Oct/V system the VCO oscillator frequency changes one octave for every one volt change in the control voltage so that, for example, 1V, 2V and 3V to a VCO would generate 200Hz, 400Hz and 800Hz respectively.
Features and Functions
This changes a Hz/V type keyboard CV (control voltage) output into an OCT/V type of CV. Use the Log Amp to change the control signal from, say, a Korg or Yamaha synthesiser into a signal you can use with another type of synthesizer.
This changes an OCT/V type of keyboard CV output into a Hz/V type of CV. Use this Antilog Amp when you want to control, say, a Korg synthesiser by means of a unit that uses the OCT/V system.
788 Setting Up Your Digital Camera For HDR Shooting
Youâve probably heard of High Dynamic Range (HDR) Photography, itâs made quite an entrance into the world of digital photography.
If you havenât, the HDR process is accomplished by taking multiple exposures of a high contrast scene (usually a landscape or cityscape), at different levels of brightness, and then combining the best light from each exposure into one image.
The end result is a stunning image that very closely resembles how the human eye views a scene. This process of digital manipulation has caused a bit of controversy and debate in the world of photography, especially with images that are âover-cooked.â One thing is for sure though, HDR is here to stay. When done right, this unique and in depth processing technique can produce beautiful works of art that mimic the way we view and remember a landscape or scene.
The above image is an example of what HDR processing can produce. This image, taken from the Big Island of Hawaii, would not be possible without HDR processing. It was taken around noon, the harshest light of the day. The first image is the best image my camera could produce given the situation. While still beautiful, there are obvious problems. Get ready, this article is going to show you how to take your digital camera and turn it into an HDR shooting machine!
767 The 5 types of programmers ÂŤ Steven Benner's Blog
In my code journeys and programming adventures Iâve encountered many strange foes, and even stranger allies. Iâve identified at least five different kinds of code warriors, some make for wonderful comrades in arms, while others seem to foil my every plan.
However they all have their place in the pantheon of software development. Without a healthy mix of these different programming styles youâll probably find your projects either take too long to complete, are not stable enough or are too perfect for humans to look upon.
The code may not be pretty, but damnit, it works!
This guy is the foundation of your company. When something goes wrong he will fix it fast and in a way that wonât break again. Of course he doesnât care about how it looks, ease of use, or any of those other trivial concerns, but he will make it happen, without a bunch of talk or time-wasting nonsense. The best way to use this person is to point at a problem and walk away.
You want to do what to my code?
This guy doesnât care about your deadlines or budgets, those are insignificant when compared to the art form that is programming. When you do finally receive the finished product you will have no option but submit to the stunning glory and radiant beauty of perfectly formatted, no, perfectly beautiful code, that is so efficient that anything you would want to do to it would do nothing but defame a masterpiece. He is the only one qualified to work on his code.
Iâm a programmer, damnit. I donât write code.
His world has one simple truth; writing code is bad. If you have to write something then youâre doing it wrong. Someone else has already done the work so just use their code. He will tell you how much faster this development practice is, even though he takes as long or longer than the other programmers. But when you get the project it will only be 20 lines of actual code and will be very easy to read. It may not be very fast, efficient, or forward-compatible, but it will be done with the least effort required.
What do you want? It works doesnât it?
The guy who couldnât care less about quality, thatâs someone elses job. He accomplishes the tasks that heâs asked to do, quickly. You may not like his work, the other programmers hate it, but management and the clients love it. As much pain as he will cause you in the future, he is single-handedly keeping your deadlines so you canât scoff at it (no matter how much you want to).
Well, thatâs a possibility, but in practice this might be a better alternative.
This guy is more interested the options than what should be done. He will spend 80% of his time staring blankly at his computer thinking up ways to accomplish a task, 15% of his time complaining about unreasonable deadlines, 4% of his time refining the options, and 1% of his time writing code. When you receive the final work it will always be accompanied by the phrase âif I had more time I could have done this the right wayâ.
Personally, Iâd have to classify myself as the perfectionist. So, which type of programmer are you? Or perhaps you know another programming archetype that is missing from my list? Post a comment below and Iâll add it to a new updated list.
747 10 Alternative Ways To Access Blocked Sites | TechiFire
Is your favorite website blocked in your school college or office ? Then here are 10 Alternative and innovative Ways To Access Blocked Sites other than proxies .
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690 The Nature Animals
552 Highly Liquid: MIDI Retrofits: MIDISpeak: Speak & Spell MIDI Retrofit
Talking Toy MIDI Retrofit $42.95 - MIDISpeak 2
In Stock. Assembly Service: $29.95 Qty:
Support Forum - Blog Entries
For installation service, contact Class A Electronics or Alien-Devices.
Use MIDI to trigger thousands of soundsâwords, word fragments, garbled speech, percussion and bizarre sound effects
Trigger sounds in a controlled, repeatable manner
Works with Speak & Spell (American or British), Speak & Read, Speak & Math, La DictĂŠe Magique (French), Grillo Parlante (Italian), and Buddy (German)
Use toy's headphone jack or speaker for audio output
User-selected MIDI input channel
Assembly service optional
Sounds triggered from Speak & Math using a midi keyboard
Speak & Math percussion loop
Speak & Math loop repeated at increasing tempo
Speak & Math sounds
The phrase "say it", looped repeatedly at decreasing tempo
The word "answer", using normal synthesis, then slow synthesis
Trigger synthesis with MIDI notes. 128 banks of sounds.
MIDI notes 50-89 control keypad buttons; notes 90-92 control "glitch" triggers.
Printed circuit board
All required components
Standard MIDI jack & mounting screws
Adhesive foam pad
551 The Top Idea in Your Mind
I realized recently that what one thinks about in the shower in the morning is more important than I'd thought. I knew it was a good time to have ideas. Now I'd go further: now I'd say it's hard to do a really good job on anything you don't think about in the shower.
Everyone who's worked on difficult problems is probably familiar with the phenomenon of working hard to figure something out, failing, and then suddenly seeing the answer a bit later while doing something else. There's a kind of thinking you do without trying to. I'm increasingly convinced this type of thinking is not merely helpful in solving hard problems, but necessary. The tricky part is, you can only control it indirectly. 
I think most people have one top idea in their mind at any given time. That's the idea their thoughts will drift toward when they're allowed to drift freely. And this idea will thus tend to get all the benefit of that type of thinking, while others are starved of it. Which means it's a disaster to let the wrong idea become the top one in your mind.
What made this clear to me was having an idea I didn't want as the top one in my mind for two long stretches.
484 Why did so many successful entrepreneurs and startups come out of PayPal? Answered by Insiders
Why did so many successful entrepreneurs and startups come out of PayPal? I long have been fascinated by the extraordinary achievement from the ex-Paypal team and wonder about the reasons behind their success. In the past, mass media tried to answer this question several times but still couldnât give us a clear answer.
I once asked David Sacks the same question during an event in Los Angeles. He told me the secret is that Paypal has built a âscrappyâ culture. No matter what problems they faced, they would find a way to solve them. I kind of got the idea, but was still confused about the execution details.
So when I saw some of the past Paypal employees answering this question on Quora, I was super excited! After all, they should be the only ones who can tell people the inside stories.
Below are some highlights of their answers. *If you want to check out the sources or leave your comments, please go to here and here.
On Talent Management
âPeter and Max assembled an unusual critical mass of entrepreneurial talent, primarily due to their ability to recognize young people with extraordinary ability (the median age of *execs* on the S1 filing was 30). But the poor economy allowed us to close an abnormal number of offers, as virtually nobody other than eBay and (in part) google was hiring in 2000-02.â (by Keith Rabois, former Executive Vice President of Paypal)
âExtreme Focus (driven by Peter): Peter required that everyone be tasked with exactly one priority. He would refuse to discuss virtually anything else with you except what was currently assigned as your #1 initiative. Even our annual review forms in 2001 required each employee to identify their single most valuable contribution to the company.â (by Keith Rabois, former Executive Vice President of Paypal)
âDedication to individual accomplishment: Teams were almost considered socialist institutions. Most great innovations at PayPal were driven by one person who then conscripted others to support, adopt, implement the new idea. If you identified the 8-12 most critical innovations at PayPal (or perhaps even the most important 25), almost every one had a single person inspire it (and often it drive it to implementation). As a result, David enforced an anti-meeting culture where any meeting that included more than 3-4 people was deemed suspect and subject to immediate adjournment if he gauged it inefficient. Our annual review forms in 2002 included a direction to rate the employee on âavoids imposing on othersâ time, e.g. scheduling unnecessary meetings.â (by Keith Rabois, former Executive Vice President of Paypal)
âRefusal to accept constraints, external or internal:We were expected to pursue our #1 priority with extreme dispatch (NOW) and vigor. To borrow an apt phrase, employees were expected to âcome to work every day willing to be fired, to circumvent any order aimed at stopping your dream.â Jeremy Stoppelman has relayed elsewhere the story about an email he sent around criticizing management that he expected to get him fired and instead got him promoted. Peter did not accept no for answer: If you couldnât solve the problem, someone else would be soon assigned to do it.â (by Keith Rabois, former Executive Vice President of Paypal)
âDriven problem solvers: PayPal had a strong bias toward hiring (and promoting / encouraging, as Keith mentions) smart, driven problem solvers, rather than subject matter experts. Very few of the top performers at the company had any prior experience with payments, and many of the best employees had little or no prior background building Internet products. I worked on the fraud analytics team at PayPal, and most of our best people had never before done anything related to fraud detection. If heâd approached things âtraditionallyâ, Max would have gone out and hired people who had been building logistic regression models for banks for 20 years but never innovated, and fraud losses would likely have swallowed the company.â (by Mike Greenfield, former Sr. Fraud R&D Scientist of Paypal)
âSelf-sufficiency â individuals and small teams were given fairly complex objectives and expected to figure out how to achieve them on their own. If you needed to integrate with an outside vendor, you picked up the phone yourself and called; you didnât wait for a BD person to become available. You did (the first version of) mockups and wireframes yourself; you didnât wait for a designer to become available. You wrote (the first draft of) site copy yourself; you didnât wait for a content writer.â (by Yee Lee, former Product & BU GM of Paypal)
On Culture & Ideology
âExtreme bias towards action â early PayPal was simply a really *productive* workplace. This was partly driven by the culture of self-sufficiency. PayPal is and was, after all, a web service; and the company managed to ship prodigious amounts of relatively high-quality web software for a lot of years in a row early on. Yes, we had the usual politics between functional groups, but either individual heroes or small, high-trust teams more often than not found ways to deliver projects on-time.â (by Yee Lee, former Product & BU GM of Paypal)
âWillingness to try â even in a data-driven culture, youâll always run in to folks who either donât believe you have collected the right supporting data for a given decision or who just arenât comfortable when data contradicts their gut feeling. In many companies, those individuals would be the death of decision-making. At PayPal, I felt like you could almost always get someone to give it a *try* and then let performance data tell us whether to maintain the decision or rollback.â (by Yee Lee, former Product & BU GM of Paypal)
âData-driven decision making â PayPal was filled with smart, opinionated people who were often at logger-heads. The way to win arguments was to bring data to bear. So you never started a sentence like this âI feel like itâs a problem that our users canât do Xâ, instead youâd do your homework first and then come to the table with â35% of our [insert some key metric here] are caused by the lack of X functionalityâŚâ (by Yee Lee, former Product & BU GM of Paypal)
âRadical transparency on metrics: All employees were expected to be facile with the metrics driving the business. Otherwise, how could one expect each employee to make rational calculations and decisions on their own every day? To enforce this norm, almost every all-hands meeting consisted of distributing a printed Excel spreadsheet to the assembled masses and Peter conducting a line by line review of our performance (this is only a modest exaggeration).â (by Keith Rabois, former Executive Vice President of Paypal)
âVigorous debate, often via email: Almost every important issue had champions and critics. These were normally resolved not by official edict but by a vigorous debate that could be very intense. Being able to articulate and defend a strategy or product in a succinct, compelling manner with empirical analysis and withstand a withering critique was a key attribute of almost every key contributor. I still recall the trepidation I confronted when I was informed that I needed to defend the feasibility of my favorite âbabyâ to Max for the first time.â (by Keith Rabois, former Executive Vice President of Paypal)
âExtreme Pressure â PayPal was a very difficult business with many major issues to solve. We were able to see our colleagues work under extreme pressure and hence we learned who we could rely on and trust.â (by Keith Rabois, former Executive Vice President of Paypal)
471 45+ Adobe AIR Applications for Designers and Developers
If you are designer or developer then you must check these handy and convenient tools based on Adobe AIR platform which will offer ease and flexibility in your daily routine
395 The Ultimate CSS3 Toolbox: 50+ Resources, Tutorials and Articles | CreativeFan
The ultimate CSS3 toolbox, with introductory articles, then tutorials, then see what's possible with inspiration and finally some more resources.
css3, css, resources, tutorials, tips, tricks, techniques, css3 tips, css3 tutorials, css3 tutorial, css3 tip, css techniques, css3 techniques
Last week, I published a massive roundup of HTML5 resources, articles, tips and techniques, and it was a big hit within the design and development community. Since HTML5 is only of the upgrades that is being rolled out, I thought it would be appropriate and helpful to assemble a set of CSS3 resources.
This post serves as the ultimate CSS3 toolbox. Youâll start with a few introductory articles, then jump right in with tutorials, then see whatâs possible with inspiration and finally some more resources.
If you have any resources to add to the list, please, let us know in the comments!
353 DIY music from outerspace
Welcome To MFOS, Your Synth-DIY Headquarters.
What is synth-DIY? Synth-DIY is just what the name implies. Synthesizer Do It Yourself. Many people, like me, grew up in the dawn of the analog synthesizer age (Moog, ARP, Oberheim, Buchla, RCA, EMu, Fairlight, PAIA and many others) and although we may have really wanted our very own analog synthesizer with dozens of knobs and switches they were w-a-a-a-y out of our reach financially. Now many people with a modicum of electronic skills and a renewed interest in analog synthesizers are discovering that with a schematic, a PC board and some electronic components they can do it themselves!.
MFOS' mission is to help people realize their synthesizer dreams. We do this by providing analog synthesizer projects with complete schematics, assembly drawings and professionally manufactured PC boards. If you already have electronic skills... welcome! If you would like to learn more about electronics or analog synthesizers then try these links: How can I start learning about electronics?, Analog Synth 101 and/or The MFOS Book Store. It's never to late to develop a new skill, reignite an old passion or exercise your creativity.
Keep imagining, keep inventing, stay ingenious.
340 7-things-to-stop-doing-now-on-facebook: Personal Finance News from Yahoo! Finance
Using a Weak Password
Avoid simple names or words you can find in a dictionary, even with numbers tacked on the end. Instead, mix upper- and lower-case letters, numbers, and symbols. A password should have at least eight characters. One good technique is to insert numbers or symbols in the middle of a word, such as this variant on the word "houses": hO27usEs!
Leaving Your Full Birth Date in Your Profile
More from ConsumerReports.org:
â˘ Millions of Users Exposing Personal Information
â˘ Tested: 119 Laptops, Desktops, Netbooks and iPad
â˘ Electronics Reviews
It's an ideal target for identity thieves, who could use it to obtain more information about you and potentially gain access to your bank or credit card account. If you've already entered a birth date, go to your profile page and click on the Info tab, then on Edit Information. Under the Basic Information section, choose to show only the month and day or no birthday at all.
Overlooking Useful Privacy Controls
For almost everything in your Facebook profile, you can limit access to only your friends, friends of friends, or yourself. Restrict access to photos, birth date, religious views, and family information, among other things. You can give only certain people or groups access to items such as photos, or block particular people from seeing them. Consider leaving out contact info, such as phone number and address, since you probably don't want anyone to have access to that information anyway.
Popular Stories on Yahoo!:
â˘ 20 Best Cities to Ride Out the Recession
â˘ Wealth Ranking: You're Richer Than You Think
â˘ 7 Expenses You Can Ditch in Retirement
More from Yahoo! Finance
Posting Your Child's Name in a Caption
Don't use a child's name in photo tags or captions. If someone else does, delete it by clicking on Remove Tag. If your child isn't on Facebook and someone includes his or her name in a caption, ask that person to remove the name.
Mentioning That You'll Be Away From Home
That's like putting a "no one's home" sign on your door. Wait until you get home to tell everyone how awesome your vacation was and be vague about the date of any trip.
Letting Search Engines Find You
To help prevent strangers from accessing your page, go to the Search section of Facebook's privacy controls and select Only Friends for Facebook search results. Be sure the box for public search results isn't checked.
Permitting Youngsters to Use Facebook Unsupervised
Facebook limits its members to ages 13 and over, but children younger than that do use it. If you have a young child or teenager on Facebook, the best way to provide oversight is to become one of their online friends. Use your e-mail address as the contact for their account so that you receive their notifications and monitor their activities. "What they think is nothing can actually be pretty serious," says Charles Pavelites, a supervisory special agent at the Internet Crime Complaint Center. For example, a child who posts the comment "Mom will be home soon, I need to do the dishes" every day at the same time is revealing too much about the parents' regular comings and goings.
327 ReclaimPrivacy.org | Facebook Privacy Scanner
Keep up with the latest news about privacy policies on Facebook.
The Erosion of Facebook Privacy eff.org
Facebook Privacy Changes eff.org
7 Things to Stop Doing Now on Facebook yahoo.com
Facebook's Gone Rogue wired.com
This website provides an independent and open tool for scanning your Facebook privacy settings. The source code and its development will always remain open and transparent.
Drag this link to your web browser bookmarks bar: Scan for Privacy
Go to your Facebook privacy settings and then click that bookmark once you are on Facebook.
You will see a series of privacy scans that inspect your privacy settings and warn you about settings that might be unexpectedly public.
Follow us on Facebook to hear about the latest updates.
Having trouble? Check our help page for tips and video walkthroughs.
Our mission is to promote privacy awareness on Facebook and elsewhere. Spread awareness to your friends on Facebook by sharing this website with them:
You can follow us on Twitter too!
If you prefer email, you can also sign up for the newsletter to get informed of privacy updates:
Are you a coder? Contribute to the source code and help to keep the privacy scanner up-to-date.
we never see your Facebook data
we never share your personal information
Simple. The scanner operates entirely within your own browser.
Statement of limitation of liability: you use this tool at your own risk, and by using this tool you agree to hold neither ReclaimPrivacy.org (nor its contributors) liable for damage to your Facebook account. However, we do strive to reduce that risk by keeping the source code open and transparent, so that we can identify bugs and quickly fix any functionality.
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322 How to Center an Absolutely Positioned Element Using CSS
Centering an absolutely positioned element is a CSS challenge that occurs now and then. The solutions seem obvious once IĂ˘ÂÂve
First, Unlike, Since, Note, This, Horizontally
301 Yamaha CS-15 mods: info and modification description (contribution by Don Solaris)
The original CS-15 is a great monophonic synth from the late 70's. It has a specific dual 12 dB multimode filter structure and a dual signal path. However these two filters are permanently set into parallel connection. This can be sometimes limiting, specially when more filter power is required (i.e. 24 dB response). One of the mods here will provide your CS-15 with serial filter connection - the 24dB mode. Of course, switch is included so that you can always bring back the original unmodified parallel filter routing the 12dB + 12 dB mode.
One of the features that make CS-15 specific (next to parallel filters) is the ultra fast LFO that will go all the way up to 100 Hz. There are no many analog synths with LFOs that can go that fast (most end at 10-15 Hz). The potentiometer is used to tune from 0.1 Hz to 100 Hz. If you look at the numbers, this is quite a big range, and we said majority of LFO modulations are performed in up to 10 Hz range. The same is applied on CS-15's LFO potentiometer. That means, you can precisely tune from 0.1 Hz to 10 Hz (over 80% of potentiometer's turn ).
However, going from 30 Hz to 100 Hz occupies only 10% of the potentiometer's turn. So if you were to perform some kind FM or Ring Mod effects, this might become a tricky job, as it requires precise tuning, but instead potentiometer jumps from i.e. 20 Hz into 40, then 70 then 100 Hz. Please note, this doesn't have anything to do with potentiometer's condition (cleaning). No matter how good you clean it, the same problem will exist, simply because this is the physical precision limit of the potentiometer. The only solution is to expand the precision in the high frequency range. In other words, we will expand 10% of potentiometer's turn into some 80% or more. Switch is included to provide the original unmodified version.
284 MATRIXSYNTH: Alesis Andromeda A6 Tip
Alesis Andromeda A6 Tip
If you own an Andromeda, give this a try. Via this gearslutz thread where you'll find additional details, via mister bunty on AH:
"For those that asked, here's the thread on gearslutz that explains the waveshaping that happens above level 30.
I know it sounds crazy, but if you keep the levels pre-mix below 30 total (yes, total!) and then the filter/ringmod/postmix levels around 70 at sum, you'll hear a whole new definition.
I tried it on a crappy set of headphones and was amazed. Then, I listened through my bluesky monitors and a set of NS-10s, and couldn't believe the detail I had been missing.
For me, at least, the juice and "vintage-ness" of the Andy was discovered."
214 Best User Interface Design Resources: The Round-upÂ |Â Dzine Blog
If you strive to be a great designer (like most), then youâre more than likely to know that a web application or websites success many times rely solely on how well designed the User Interface may be. As you scale the web and even read books, there can be an influx of misleading information pertaining to the way you should design your UI.
When in reality you should do what works best for you and your users. Below you will find a variety of excellent User Interface resources that will allow you to access, redefine, and create a well designed User Interface. You should use these resources first as inspiration, and second as somewhat of a guide as to what your users may need when they come face to face with your UI.
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