tag:blogger.com,1999:blog-29219216354861920422024-03-05T23:52:16.554+01:00vinnui's DIY analog synthesizerThis blog is dedicated to my semi-modular DIY analog synthesizer project, and my music.vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.comBlogger58125tag:blogger.com,1999:blog-2921921635486192042.post-214790097647207912016-05-24T11:44:00.001+02:002016-05-24T11:44:54.697+02:00FutureBox: DIY analog filterbox<div class="separator" style="clear: both;">
This filterbox was made for <a href="http://futurewave.hu/">Futurewave</a>. It is a dual unit with 2 types of filters, in a desktop format.</div>
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Specification:</div>
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- Minimoog Model D VCF, with CV in</div>
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- EMS VCS3 type VCF, with CV in</div>
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- 2 LFOs, for each filter, with speed select switch, and modulation amount</div>
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- 2 fuzz/distortion unit, for each filter, with bypass switch</div>
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- 2 preamps, with overdrive</div>
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- mixer</div>
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- filter bypass switch</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6XX4lyueECu5XgpIeppDe6o7hkLeQwGfJaoRzYKEqHoaTxZONtP7XNRSzVVE6yjqqJo2n0SHGfnQFRgjFQbe6DuQgNU30awDVnVhS4Mfmhf3qgL7t_ccTXrhTZiCfbx9mUKp_VzdzHtM/s1600/futurebox_p01.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="279" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6XX4lyueECu5XgpIeppDe6o7hkLeQwGfJaoRzYKEqHoaTxZONtP7XNRSzVVE6yjqqJo2n0SHGfnQFRgjFQbe6DuQgNU30awDVnVhS4Mfmhf3qgL7t_ccTXrhTZiCfbx9mUKp_VzdzHtM/s320/futurebox_p01.jpeg" width="320" /></a></div>
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<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/VVufIhkotqQ/0.jpg" src="https://www.youtube.com/embed/VVufIhkotqQ?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdWewhzczrzWGkE-ASvZHeRJcxO4izprSNSi5rDU06QLIJ8_MO03-5bUcde8ck2SLmuOWSAsuv0m7g2aFekbdw7MJwgaG2vLhSMSlwiYWWcCUOrjhioLXr96I3MwN30OzLa5g5QxWFzAU/s1600/futurebox_p02.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdWewhzczrzWGkE-ASvZHeRJcxO4izprSNSi5rDU06QLIJ8_MO03-5bUcde8ck2SLmuOWSAsuv0m7g2aFekbdw7MJwgaG2vLhSMSlwiYWWcCUOrjhioLXr96I3MwN30OzLa5g5QxWFzAU/s320/futurebox_p02.jpeg" width="320" /></a></div>
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vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com1tag:blogger.com,1999:blog-2921921635486192042.post-34456546983669433732016-01-27T09:53:00.000+01:002016-01-30T16:33:48.615+01:00My modded Minibrute is for sale<span style="font-family: "arial"; font-size: x-small;">I've modded my Arturia Minibrute with 8 special output jacks, these are on the right side panel.</span><br />
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<span style="font-family: "arial"; font-size: x-small;">It's ideal for modular synthesizer central controller.</span></div>
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<a data-jsbanchorprepared="Owq1DD9iMNJDi7N" href="http://ent.hu/~vinnui/pic/mnsz/minisale_01.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/minisale_01.jpeg" height="240" width="320" /></a></div>
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<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/rUvGb1kO_Y8/0.jpg" src="https://www.youtube.com/embed/rUvGb1kO_Y8?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
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<span style="font-family: "arial"; font-size: x-small;">Special outputs:</span></div>
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<ul>
<li><span style="font-family: "arial"; font-size: x-small;">LFO Sine waveform out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">LFO stepped waveform out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">VCA ADSR envelope out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">VCF ADSR envelope out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">Arpeggiator clock out (you can sync sequencers to it)</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">Pitch bend wheel CV out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">Mod wheel CV out</span></li>
<li><span style="font-family: "arial"; font-size: x-small;">Keyboard aftertouch CV</span></li>
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<a data-jsbanchorprepared="tcph8YPaIHdsUVa" href="http://ent.hu/~vinnui/pic/mnsz/minisale_02.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/minisale_02.jpeg" height="240" width="320" /></a></div>
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If you're interested, please <a data-jsbanchorprepared="NFiynGdFVScRflx" href="http://ebay.to/1UpAUoU">check out this Ebay auction</a>.vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-74792226693905902472015-08-08T20:38:00.000+02:002015-08-08T20:38:15.530+02:00VCO and waveshapersHere is my new DIY VCO and waveshaper module.<br />
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It contains the following circuits:<br />
- 2x <a data-jsbanchorprepared="tsjda1wLFFg0ucZ" href="http://yusynth.net/Modular/EN/VCO/index.html" rel="noreferrer">Yusynth VCOs</a><br />
- 2x Suboscillators (for each VCO), with square output (-1, and -2 octaves), based on a 4024 divider circuit<br />
- <a data-jsbanchorprepared="aYErNCIsj2gBYSf" href="http://yusynth.net/Modular/EN/WAVEFOLDER/index.html" rel="noreferrer">YuSynth/Jürgen Haibe Wavefolder</a><br />
- <a data-jsbanchorprepared="pnThlwiMM3Eb6LH" href="http://home.comcast.net/~ijfritz/sy_cir8.htm" rel="noreferrer">Ian Fritz 5pulser waveshaper</a><br />
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Some pictures:<br />
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<a data-jsbanchorprepared="ckDEY0GLJo2b9gI" href="http://ent.hu/~vinnui/pic/mnsz/vcoandws_01.jpeg" imageanchor="1" rel="noreferrer" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/vcoandws_01.jpeg" height="240" width="320" /></a></div>
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<a data-jsbanchorprepared="lXdI8429fLFwBvg" href="http://ent.hu/~vinnui/pic/mnsz/vcoandws_02.jpeg" imageanchor="1" rel="noreferrer" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/vcoandws_02.jpeg" height="240" width="320" /></a></div>
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<a data-jsbanchorprepared="yHbGqnttLqdML3F" href="http://ent.hu/~vinnui/pic/mnsz/vcoandws_03.jpeg" imageanchor="1" rel="noreferrer" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/vcoandws_03.jpeg" height="240" width="320" /></a></div>
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<a data-jsbanchorprepared="2R8SkwtssAI1tDb" href="http://ent.hu/~vinnui/pic/mnsz/vcoandws_04.jpeg" imageanchor="1" rel="noreferrer" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://ent.hu/~vinnui/pic/mnsz/vcoandws_04.jpeg" height="168" width="320" /></a></div>
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Demo video of the waveshapers:<br />
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<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/V4u_sP-NvHQ/0.jpg" src="https://www.youtube.com/embed/V4u_sP-NvHQ?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com1tag:blogger.com,1999:blog-2921921635486192042.post-18238504628507646972015-02-10T11:29:00.000+01:002015-02-10T11:29:07.832+01:00Protostar Monosynth<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtOj3g9gIjZKcOQMqNUOdBnFCbLcmFPCoX51EWOOa-X1PMXFxxkCWJADHavE3QQzpAgmr4usTqcmpKwssr5eJfGhmoIKbmh5VJuLCHjAcPMdQ9NQ3i3rFVvvDnNNa6ags2ZGdBrDfDabc/s1600/ujprotodoboz02.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtOj3g9gIjZKcOQMqNUOdBnFCbLcmFPCoX51EWOOa-X1PMXFxxkCWJADHavE3QQzpAgmr4usTqcmpKwssr5eJfGhmoIKbmh5VJuLCHjAcPMdQ9NQ3i3rFVvvDnNNa6ags2ZGdBrDfDabc/s1600/ujprotodoboz02.jpeg" height="251" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Protostar patchable monosynth</td></tr>
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New year, new progress, and a little blog redesign! :)</div>
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The instrument shown on the pictures is the Protostar patchable monosynth. It's a usable, but work in progress synth, with the following features:</div>
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<ul>
<li>2 VCOs</li>
<li>2 suboctave generator with square waveform, -1/-2 octave</li>
<li>Waveform mixer with noise (4 waveforms/VCO + sub) with gain to overdrive the VCF</li>
<li>Minimoog VCF clone</li>
<li>2 VCLFOs with 4 waveform outputs.</li>
<li>2 ADSRs (one for the VCF, one for the VCA)</li>
<li>3 VCAs</li>
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The signal path is normalized, based on the traditional VCO-VCF-VCA signal routing of the classic monosynths. The LFOs is modulating the VCO's PWM, the ADSRs is dedicated to the VCF/VCA. All of the signals can be separated, all of the modules are possible to disconnect, thanks to the switching jacks.</div>
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Almost all of the modules are based on the <a href="http://yusynth.net/Modular/index_en.html">great YuSynth designs</a>, so thanks fly to Yves Usson!</div>
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Planned modules: Midi2CV (normalized to the VCO/ADSRs), mixers, multiples, external input preamp.</div>
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The front panels are laser engraved, made from anodized aluminum. The case is temporary.</div>
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<br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhX_BsXgkC6_d1Is2XkFTpGC5tVzwIzvdXrRkjhGBObCh13ozflQUw06_-CjoAyaRi9QGyA4Pm-JX2AQf2jVVMv9ZU4r1KlxA9wAsMjdsEGHpbJ7_GKBUdgwKB06V2PEO7dgH6bPdQXko/s1600/ujprotodoboz01.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhX_BsXgkC6_d1Is2XkFTpGC5tVzwIzvdXrRkjhGBObCh13ozflQUw06_-CjoAyaRi9QGyA4Pm-JX2AQf2jVVMv9ZU4r1KlxA9wAsMjdsEGHpbJ7_GKBUdgwKB06V2PEO7dgH6bPdQXko/s1600/ujprotodoboz01.jpeg" height="137" width="320" /></a></div>
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<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-73670349867426431172013-04-02T15:35:00.000+02:002013-04-02T19:30:37.499+02:00Drum synthesizer - FinishedThe case is ready, and all functions are working! :) There are small problems, but I will fix them soon.<br />
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It's really fun to play with it, especially the cross-modulation functions, and the triggering combined. It can produce sounds from funny, and simple synthetic "space" drum sounds, to agressive, and noisy, industrial drums, even cool analog bass sounds, and simple synth sequences! So much possibilities are in this "simple" instrument. :)<br />
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A little summary of the instrument:<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAKXP9B-jmnGW2pyX3bdsZLL1CCheZ5t9v_-GvcxARteE2CgyLtCQBaAgg0gYkjUbEZAVcMY4JmdC0SthhBGiOWwbMLPkQaxbiVnA84mouphAVQFpk5nuv1-RkWSz_OwlrPa1V_LOWTxg/s1600/rebhead1.jpeg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Rebel D2 logo" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAKXP9B-jmnGW2pyX3bdsZLL1CCheZ5t9v_-GvcxARteE2CgyLtCQBaAgg0gYkjUbEZAVcMY4JmdC0SthhBGiOWwbMLPkQaxbiVnA84mouphAVQFpk5nuv1-RkWSz_OwlrPa1V_LOWTxg/s1600/rebhead1.jpeg" title="" /></a></div>
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<span style="text-align: left;">Analog drum machine, and filterbox.</span></div>
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<span style="text-align: left;">Features:</span><br />
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<ul>
<li style="text-align: left;">Two independent drum channels, based on Coron DS8 design.</li>
<li style="text-align: left;">Two Wasp VCF clones, with LP/HP/BP/Notch modes</li>
<li style="text-align: left;">External signal processing with the filters</li>
<li style="text-align: left;">Triggering with button, or external signal (audio, piezo pulse, etc.), led indicator</li>
<li style="text-align: left;">Inputs for VCO frequency CV</li>
<li style="text-align: left;">VCO frequency modulation (or cross-modulation), with VCF output of the other channel</li>
<li style="text-align: left;">VCF CV input</li>
<li style="text-align: left;">Separate outputs, or mixed out</li>
</ul>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFpwjUDWw6b3MQO9bt5j3yAW3Yu-QqmU17rSLAeBhTgjQUFNGM105CJ0RgRfkVhq5ocY2e5cJTsLZJKg8n8mJGES7ueJQezfezrCXnuEFKfvASsKknQ1HfmOnQnrqbHlm0Ykck6U1eiqg/s1600/DSCF1386.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="227" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFpwjUDWw6b3MQO9bt5j3yAW3Yu-QqmU17rSLAeBhTgjQUFNGM105CJ0RgRfkVhq5ocY2e5cJTsLZJKg8n8mJGES7ueJQezfezrCXnuEFKfvASsKknQ1HfmOnQnrqbHlm0Ykck6U1eiqg/s320/DSCF1386.JPG" width="320" /></a></div>
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<span style="text-align: -webkit-auto;">Sound samples will follow soon!</span></div>
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vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-45973735715404707272013-02-17T17:43:00.000+01:002013-02-17T17:43:36.271+01:00New modular caseThis is the end of the lifecycle of my old, temporary case! Hooooraaay! :) Here is the new one!<br />
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I wanted to separate the PSU, and move out of the modular's box. My PSU is too strong, to power only one case, and the modules can occupy more space, if the PSU is not built into the case.<br />
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My new panel format is a nonstandard 160x160 mm, this case is built for them. The old modules will be cut to this size, or if it's not possible, they will be converted/reassembled soon.<br />
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Cheap materials.</div>
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The frame assembled.</div>
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Old, and new.</div>
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The PSU box, painted with a solar flare.</div>
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The new case, painted.</div>
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Populated with some modules.</div>
vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-43030521966602282782013-01-19T21:25:00.001+01:002013-01-19T21:28:58.236+01:00My first multitracked "music" with the DIY modularIn this song i've used the following YuSynth modules: VCOs, EMS VCF, ADSRs, a mixer, and a VCA.<br />
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<iframe frameborder="no" height="166" scrolling="no" src="https://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F75612766" width="100%"></iframe><br />
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<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com1tag:blogger.com,1999:blog-2921921635486192042.post-37676758675789350302013-01-06T19:43:00.000+01:002013-01-06T19:43:02.198+01:00Magic Smoke 8K LFO<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody></tbody></table>
For the next module, which I want to build, i've needed a simpe LFO with speed control only. After hours of browsing the schematics, i've found Tim Servo's MSE 8K LFO. This circuit can do triangle and square waveforms, and it's high range, but with only one pot it's hard to fine tune on the lower end. The schematics shows a fine tune pot, but i don't want to include it, because of the limited front panel space.<br />
It's very easy to build, only a TL072 or 074 opamp is needed. I've integrated a simple led driver too.<br />
With polyester caps, the triangle waveforms are perfect, of course ceramics don't do it very well.<br />
My version uses 1nF timing caps, and this gives 15 sec with the lowest pot setting, which is perfect for me.<br />
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More schematics, simple LFO's, and waveshapers for this LFO are <a href="http://electro-music.com/forum/topic-32372.html">here</a>. <br />
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Thanks to Tim Servo, for his great work!<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTbtnsJpjbhprKsTmEWIURkvpZDGWZ7eFSQevQWw2tIpsXZtpqAxkGpKUUyl5sCKiwvLd3HocA8Vr7uwiZ2xCD9-u53DeTTXkEe0bRB-nWEpGSshlTlKlqstKGCOjG6nHxD9o1qwwO2ZA/s1600/mse8klfo.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="203" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTbtnsJpjbhprKsTmEWIURkvpZDGWZ7eFSQevQWw2tIpsXZtpqAxkGpKUUyl5sCKiwvLd3HocA8Vr7uwiZ2xCD9-u53DeTTXkEe0bRB-nWEpGSshlTlKlqstKGCOjG6nHxD9o1qwwO2ZA/s320/mse8klfo.jpeg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Schematics</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDWIbf6A_5MJ9gDQVrN-_NMzLinnVrSOfCRLs8FbHFte8eipj7eU0C7-qQBZSsig83bszcYAmmD3k5VpErD-6t3ltiqnfIRI_kie4c4zhpCpO_vjQLTGcM8R-e56QL93CGqQ2nwtIgpns/s1600/Webcam-1357495710.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDWIbf6A_5MJ9gDQVrN-_NMzLinnVrSOfCRLs8FbHFte8eipj7eU0C7-qQBZSsig83bszcYAmmD3k5VpErD-6t3ltiqnfIRI_kie4c4zhpCpO_vjQLTGcM8R-e56QL93CGqQ2nwtIgpns/s320/Webcam-1357495710.jpeg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Dual LFO's on breadboard</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEii12TJZVf8sjjRbcGVUlgG3GxacxclctwX5TDE0hmNKgTeW96ldYOoxrjmTj_JRos-nulLYs6s5AJWQYFf-5rsDsTBpMpprXK1kfjq0-iYimtoPuPRKX-bZ6R9n-bSpiy37IonZOt7otY/s1600/Webcam-1357495703.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEii12TJZVf8sjjRbcGVUlgG3GxacxclctwX5TDE0hmNKgTeW96ldYOoxrjmTj_JRos-nulLYs6s5AJWQYFf-5rsDsTBpMpprXK1kfjq0-iYimtoPuPRKX-bZ6R9n-bSpiy37IonZOt7otY/s320/Webcam-1357495703.jpeg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Only a 1M Log pot, and an LED</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh28D4yM7sTXBIwznDoZTofeNAW8OdFDQp9T8ZH5q1mjIFWeT2zjPhAn1f0IGa0vEUFe-SbQPzgqlIuTP_YU5lIK3YS3QumLoxMkbRTT4MzhkXoJNenLTYLEWC-MLsIMdy5s4v_-gTTeYU/s1600/Webcam-1357495741.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh28D4yM7sTXBIwznDoZTofeNAW8OdFDQp9T8ZH5q1mjIFWeT2zjPhAn1f0IGa0vEUFe-SbQPzgqlIuTP_YU5lIK3YS3QumLoxMkbRTT4MzhkXoJNenLTYLEWC-MLsIMdy5s4v_-gTTeYU/s320/Webcam-1357495741.jpeg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Some power distributors added</td></tr>
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<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-80447362566454888052012-11-01T16:26:00.000+01:002012-11-01T21:02:27.363+01:00My new module: Mixer, MidiCVThis is a combined module, which contains a <a href="http://yusynth.net/Modular/EN/MIXER/index.html">6 input mixer</a>, a <a href="http://m.bareille.free.fr/mcv628/mcv628.html">monophonic Midi2CV converter (MCV-628)</a>, and an input preamp.<br />
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My new, non-standard panel format is 160x160 mm, fixed. I've bought a 20 aluminium panels, and I will repanel the old blue modules. I need to do this, because the old panels are weak, and inaccurate.<br />
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vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-77284866961010383822012-09-09T21:45:00.000+02:002012-09-10T14:26:44.205+02:00Drum synthesizer - construction 3The front panel is ready, and the drum synth has a new PSU too. The electronics is completed, now I need to design a case.<br />
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<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com1tag:blogger.com,1999:blog-2921921635486192042.post-60240215200006580912012-07-12T14:39:00.000+02:002013-04-02T15:20:03.859+02:00Drum synthesizer - contruction 2<div class="separator" style="clear: both; text-align: left;">
I've finished the rewiring of the panels, and the drum synth is now working with it's own external 9V DC PSU. Two separate piezo triggers can be used to fire the channels independently, it's a lot of fun. :) Sadly, the DS8's output signals are too quiet, or not ideal for the Wasp VCF, even if resistor R30 (100K) is replaced by a 470K one.</div>
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I also need to process external signals, so a preamp will be included:</div>
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Preamp, and mixer circuit on veroboard:</div>
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vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-80280058195690026422012-07-09T10:37:00.000+02:002013-04-02T15:13:26.137+02:00Drum synthesizer - construction 1<div class="separator" style="clear: both; text-align: left;">
I'm in the middle of the building phase. The two drum voices (with the Wasp filters) are working properly! :)</div>
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I've made a temporary, cardboard faceplate, because I need to finalize the graphics. I need to make an extra PCB with the VCF LFOs (<a href="http://home1.gte.net/res0658s/fatman/4069_lfo.html">4069 LFO</a>), some preamp for external input signals, a <a href="http://www.electronicecircuits.com/electronic-circuits/555-negative-voltage-power-supply-circuit">555 negative supply circuit</a>, and maybe a headphone preamp too. I also need to make some experiments with cross-VCO modulation between the two DS8s. If it sounds good, I will put 2 pots on the front panel with this functionality. I will make experiments with Wasp out -> DS8 VCA in feedback loop. I like distortion... :)</div>
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<br />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-83547067938463739662012-06-23T06:50:00.000+02:002012-06-23T06:52:22.210+02:00The "Rebel.D2" drum synthesizer<span class="Apple-style-span" style="font-family: Helvetica; font-size: 12px;">I like to run projects in parallel, so there is my new idea: I want a simple, analog drum synthesizer.</span><br />
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I've built a <a href="http://m.bareille.free.fr/ds7clone/ds8.htm">Coron DS8 clone</a> from Marc Bareille's schematics. I don't have CA3080 OTAs, so I've redrawn the circuit to use LM13700, and integrated a led driver for the incoming trigger signals.</div>
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After a few hours of playing with the DS8, I've realized, that this circuit can be enhanced with a VCF. The DS8 doesn't contains a filter, only the noise spectrum can be altered with a switch.</div>
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Because the DS8 is using +5V supply voltage, and the <a href="http://www.jhaible.de/tonline_stuff/hj_wasp.html">Wasp VCF</a> also using this value, I've tried it, and built this combination, plus a piezo trigger pad into a temporary plastic case for trial.</div>
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This combination sounds wonderful, warm, and analog, but it also can be harsh, distorted and rude. This VCF simply mutiplies the possibilities of the DS8.</div>
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Then the idea of a simple two channel drum synthesizer was born:</div>
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I don't want to integrate any control circuit into this machine, only the CV/control/trigger jack sockets will be built in. The Wasp filters can be used for external signal processing, so this unit will be an integrated drum synth and a dual filterbox.</div>
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<br /></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-58642926026482976902012-02-03T12:02:00.000+01:002012-02-03T12:03:37.512+01:00Constructing the modbusThe VCAs of the modbusses are simple <a href="http://www.yusynth.net/Modular/EN/VCA/index.html">YuSynth VCAs</a>. I've redrawn it in Eagle, removed the led driver circuit, and added simple LF412 CV buffers:<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWwc-trt_A-nf06y9seaj3bxd2qAAM54kMXi9NMBDlAlhjKBOkSqBXm0TIPuLfxiTB95voB7L_CFaHTZ7hpCzzGA3ycj9RgnW6nTUgT5VbkE9gynO4ehsSwyzurV2Hm4jV-t1kDMMCk8w/s1600/modbusvcas.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWwc-trt_A-nf06y9seaj3bxd2qAAM54kMXi9NMBDlAlhjKBOkSqBXm0TIPuLfxiTB95voB7L_CFaHTZ7hpCzzGA3ycj9RgnW6nTUgT5VbkE9gynO4ehsSwyzurV2Hm4jV-t1kDMMCk8w/s400/modbusvcas.jpeg" width="400" /></a></div>
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More wiring and testing needed.vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-86479913815585187412011-09-09T13:11:00.001+02:002011-09-09T13:11:52.214+02:00The concept of the modulation busThe idea of the modulation bus is came from the Minimoog Voyager, which uses this simple idea, to enable the user, to quickly dial in modulation settings. The Voyager came with 2 independent modbusses, with slightly different capabilities, and the Voyager Oldschool (which is 100% analog, without the digital patch storage, and control) uses modbusses with even more control possibilities.<br />
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The Minimoog Voyager's modbus:<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9Bh__sCJzy8JDRSGQuVC6YHAcVxaH4dg_C351YEbm7n6PUyrguQvK1dp1tis7lOjPHIMwiQonPkGKfyRbAo4Sjk99WE_T_edgk9XFWlYFu0CPNkv0mK5LLSf76DhFrl-1R3QUvl4uadQ/s1600/example+-+MoogMinimoogVoyager006.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9Bh__sCJzy8JDRSGQuVC6YHAcVxaH4dg_C351YEbm7n6PUyrguQvK1dp1tis7lOjPHIMwiQonPkGKfyRbAo4Sjk99WE_T_edgk9XFWlYFu0CPNkv0mK5LLSf76DhFrl-1R3QUvl4uadQ/s320/example+-+MoogMinimoogVoyager006.jpg" width="151" /></a></div>
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The Minimoog Voyager Oldschool offers more sources, desinations, and controller/shaping options, which makes this instrument more flexible:</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-4s1VOwPZ2l1BvLTshHrHOw4N3NA6lSe3qIskxqvOXn3XJHC8b83xh_9vYj3fAF__pRY9X0SI90It12DgBiNyRnmFaSmrdb_9oxM-jHMSpIQ2-Sgmwd_lwQEmBpRTOAeMVwd_LZ7p-nA/s1600/example+-+Moog_OS_modbus.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-4s1VOwPZ2l1BvLTshHrHOw4N3NA6lSe3qIskxqvOXn3XJHC8b83xh_9vYj3fAF__pRY9X0SI90It12DgBiNyRnmFaSmrdb_9oxM-jHMSpIQ2-Sgmwd_lwQEmBpRTOAeMVwd_LZ7p-nA/s320/example+-+Moog_OS_modbus.jpg" width="257" /></a></div>
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The user can select a modulation source with the "source" selector, the modulation destination, and then the controller, which will influence the modulation, like the keyboard velocity, or an external pedal. Finally, the amount knob makes possible to set the intensity of the modulation.</div>
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I think, this idea is very useful, even in semi-modular synths. No patch cables are needed, many of the modulations are possible with a few simple settings, and they are easy to remember.<br />
I've started to experiment with modbusses in my monosynth prototype. In my current setup, the modbus needs to be more flexible than the Voyager's modbus, because my synth has more CV sources, and more possible modulation destinations. My implementation of the thing looks like this:<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWx6oWygSDsCbfn_Xzx6gYD66LbrXMcPFr5-QSz6ygEXhZ0AwCGTVIklGkDE7JrwO1m-7pT5oVYVcMWdtwluwZF_QdicRaC8wJafrw8lhyphenhyphenLgyAET1eSliwE-TwRMUqE6lmrMO64HZVurs/s1600/my_modbus_arch1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="293" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWx6oWygSDsCbfn_Xzx6gYD66LbrXMcPFr5-QSz6ygEXhZ0AwCGTVIklGkDE7JrwO1m-7pT5oVYVcMWdtwluwZF_QdicRaC8wJafrw8lhyphenhyphenLgyAET1eSliwE-TwRMUqE6lmrMO64HZVurs/s320/my_modbus_arch1.png" width="320" /></a></div>
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Every modbus needs a VCA which passes CV signals and audio signals too (has no blocking capacitors on the inputs), and rotary switches to select source, destination, and shaper settings. I'm using 12 position rotary switches for the dest/source/shaper settings. The amount knob controls the VCA's input CV level. If the amount knob is set to the maximum, the VCA's output level is maxed, and if the knob is set to zero, the VCA's output is totally silent (no modulation).<br />
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The useful setup for me is the following for modbus1:<br />
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<ul>
<li>Sources: VCO1, VCO2, SUB osc1, ENV1, ENV2, LFO1, LFO2, LFO3, Mixer output, Saw anim CV1, Saw anim CV2 (they are simple LFOs), and Keyboard CV</li>
<li>Destinations: VCO1 frequency, VCO2 frequency, VCO1+2 frequency, Mixer input, VCF cutoff, VCA1 CV, VCA2 CV, VCA1+2 CV, ENV1 trigger, ENV2 trigger, SawAnim 1 CV, SawAnim 2 CV</li>
<li>Shapers: Keyboard CV, Keyboard AUX (f.e. modwheel), ENV1, ENV2, ENV1 inv, ENV2 inv, LFO1, LFO2, LFO3, SUB1, SawA1, None</li>
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Modbus in steroids :)<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5VflsLTFrY0hJCQpLj5rnwi1w2RDxnYtEBsAXQ-kwaN1lbTL4_P0j2oovlxoSq2AA81G0spdkgbrbKYNJ9zN8b8hxtP-pbrZvZStFa-vi7IF9LvOkbKZcAxa5T6IQAu1fb3RNYFupSXA/s1600/modbusfp.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5VflsLTFrY0hJCQpLj5rnwi1w2RDxnYtEBsAXQ-kwaN1lbTL4_P0j2oovlxoSq2AA81G0spdkgbrbKYNJ9zN8b8hxtP-pbrZvZStFa-vi7IF9LvOkbKZcAxa5T6IQAu1fb3RNYFupSXA/s320/modbusfp.png" width="259" /></a></div>
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My modulation busses allows the extraction of the final modulation signals, and the injection of an external source or shaper signal, which makes them integrate with the patch panel of the synth.vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-59162540256890470272011-05-28T18:45:00.000+02:002011-05-28T18:45:41.632+02:00Frontpanel prototyping<div class="separator" style="clear: both; text-align: left;">Ugly little cardboard box. :)</div><div class="separator" style="clear: both; text-align: left;"><br />
</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbLCL5nlXWuAJezusYAXRlkc_OtpCauhgB7OqksuyJT0qWkIIvGDXX8sPze6SrVKT6hvgdZmQMFESlzQw_NuURaWbFLIeKkE8G2v-KAldzv0HMw3pvLK1eaPLTeRgfYNU7Qus5O9aQDrw/s1600/proto20110528a.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="230" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbLCL5nlXWuAJezusYAXRlkc_OtpCauhgB7OqksuyJT0qWkIIvGDXX8sPze6SrVKT6hvgdZmQMFESlzQw_NuURaWbFLIeKkE8G2v-KAldzv0HMw3pvLK1eaPLTeRgfYNU7Qus5O9aQDrw/s320/proto20110528a.JPG" width="320" /></a></div><br />
<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTz4BhltImzGUfI37jC6NjpzhwZeLFziSEwiQ0dnhOe6fgTFlQ5Vd0ZiHXe2X-HL5_gE0ASdBmHgl2ujS4dsD31OntD9imOXgO8GeQl48PNqBkoyMLsrrfx23XyK3dldnbL5goYmOb3P0/s1600/proto20110528b.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTz4BhltImzGUfI37jC6NjpzhwZeLFziSEwiQ0dnhOe6fgTFlQ5Vd0ZiHXe2X-HL5_gE0ASdBmHgl2ujS4dsD31OntD9imOXgO8GeQl48PNqBkoyMLsrrfx23XyK3dldnbL5goYmOb3P0/s320/proto20110528b.JPG" width="320" /></a></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-9053477581031637582010-11-15T21:29:00.000+01:002010-11-15T21:29:13.457+01:00My new environment<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCSqcTxblq-yDmECWxGIVQvWoxs5Iad4pMpnJ1OdpxNaAbP7y8SBEj_365Xp5Co6QZDoiJ3glg2Pq8rbGzUE281gkqyUoKLEXYHyIe65h3BTxolTkQpAT-ZunjWDowOxqz638reDixHMs/s1600/asm1noise.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCSqcTxblq-yDmECWxGIVQvWoxs5Iad4pMpnJ1OdpxNaAbP7y8SBEj_365Xp5Co6QZDoiJ3glg2Pq8rbGzUE281gkqyUoKLEXYHyIe65h3BTxolTkQpAT-ZunjWDowOxqz638reDixHMs/s320/asm1noise.jpeg" width="320" /></a></div><br />
Here is my desk in my new room, my new lab PSU, and a new breadboard! :) The oscilloscope is an awful one (old russian model with cyrillic labeling, yuck!), but for a few weeks/months it will serve me, until I'll find a better one.<br />
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I've breadboarded the <a href="http://home.swipnet.se/cfmd/synths/friends/stopp/asm1ns.pdf">ASM1 noise source</a>, without the pink/random output, because I don't need them for my new secret project. ;) More details later...vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com8tag:blogger.com,1999:blog-2921921635486192042.post-81910974854012620822010-07-02T20:47:00.000+02:002010-07-02T20:47:11.933+02:00Modular Improvization 20100702A little improvization which is recorded with Audacity into 3 tracks.<br />
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<object height="81" width="100%"> <param name="movie" value="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fmodular-improv-20100702"></param><param name="allowscriptaccess" value="always"></param><embed allowscriptaccess="always" height="81" src="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fmodular-improv-20100702" type="application/x-shockwave-flash" width="100%"></embed> </object> <a href="http://soundcloud.com/vinnui/modular-improv-20100702">Modular improv 20100702</a> by <a href="http://soundcloud.com/vinnui">vinnui</a>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-66853745429985517142010-04-07T21:45:00.003+02:002010-04-07T22:00:20.823+02:00Modular synth improv<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggRlcZRLI9UTAjhBwrjw2Sp6zg1y8hzP1kWGsq7KzZ5sGf9u7AZ3qu_DxXGaexJ4kcUWn-9vmkui03RbnFBV6rcXlC2lvqgtNC4CB_dgovdq49BXnRaAUCcUfMzEkEkbot4T393PXtQqc/s1600/DSCF2163.JPG"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 290px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggRlcZRLI9UTAjhBwrjw2Sp6zg1y8hzP1kWGsq7KzZ5sGf9u7AZ3qu_DxXGaexJ4kcUWn-9vmkui03RbnFBV6rcXlC2lvqgtNC4CB_dgovdq49BXnRaAUCcUfMzEkEkbot4T393PXtQqc/s320/DSCF2163.JPG" border="0" alt="" id="BLOGGER_PHOTO_ID_5457487841278789458" /></a><div>YuSynth modular -> MAM RS3 resonator -> Behringer DSP</div><br /><object height="81" width="100%"> <param name="movie" value="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fmodular-improvization-20100407"> <param name="allowscriptaccess" value="always"> <embed allowscriptaccess="always" height="81" src="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fmodular-improvization-20100407" type="application/x-shockwave-flash" width="100%"></embed> </object> <span><a href="http://soundcloud.com/vinnui/modular-improvization-20100407">Modular improvisation 20100407</a> by <a href="http://soundcloud.com/vinnui">vinnui</a></span>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-68864011516721473692010-03-18T22:58:00.004+01:002010-03-18T23:03:30.193+01:00Power distribution<div style="text-align: left;">Simple power distribution boards</div><div style="text-align: center;"><br /></div><div><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEH9dThPZ6-azZJqyuJNNoQbuRgqZfudBFxB-pQ4AkMMaP_C9YJ_qVBnSnSwVWCwhoVoOvWGYNl5kHWDNG-_O4fm4u5FNdFCTqUXKS2i-Xhl5eQpk1CCEpnFU9TnPGFqO53YDMPM2hzlg/s320/pwrdistrib.jpg" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 240px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5450097216467072386" /><div style="text-align: center;"><br /></div></div><div>The current state of the modular, and the patch from the previous post</div><div><br /></div><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgFGbPqRmJqDuAj3mUIPRBxTiuOwR411oTHVwHH0cjD4bw4a6q6RtKK__u4Np2-rdhEK7USe_Z66xAlhu4b_QY5kv1e3lrieSGgOAZQTLpceWBQvod_d2zV5Z57sjeiNPiYHilotwT08U/s320/state20100318.jpg" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 238px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5450097362762802770" />vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-52119211626049817442010-03-18T20:01:00.003+01:002010-03-18T20:15:58.518+01:00Some modular soundI've played with the completed modules today. Two new half-built mixer modules are in action in this patch, with 3 VCOs, 2 LFOs, and an EMS VCF clone. No additional effects, just some knobbing, VCO FM, LFO FM, etc...<div>Self playing patch, until 0:45.<br /><br /><object height="81" width="100%"> <param name="movie" value="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fyusynth-modular-noodle"> <param name="allowscriptaccess" value="always"> <embed allowscriptaccess="always" height="81" src="http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fsoundcloud.com%2Fvinnui%2Fyusynth-modular-noodle" type="application/x-shockwave-flash" width="100%"></embed> </object> <span><a href="http://soundcloud.com/vinnui/yusynth-modular-noodle">YuSynth modular noodle</a> by <a href="http://soundcloud.com/vinnui">vinnui</a></span></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-79574453212668492072010-03-09T21:41:00.006+01:002010-03-09T21:47:45.453+01:00Yusynth VCOs<div>No tempcos, and no 1V/oct calibration yet.</div><div><br /></div><div>Started in 2009, but finished in 2010... :)</div><div><br /></div><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbJBkXEeFrvx-IwImoV1UmWHJHWvMzvxLVKQGeiNo9IkgIwihGBIFGteyW9P_DYsYXIYmNW4wU_AMfY5pjFIyjUCV0WVJ-s0lumZYYXuCT6pUgPPDZZprtGvZaAdw9PaJ-wqFbaOlq6dA/s1600-h/yusynth_dualvco_front.jpeg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 284px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbJBkXEeFrvx-IwImoV1UmWHJHWvMzvxLVKQGeiNo9IkgIwihGBIFGteyW9P_DYsYXIYmNW4wU_AMfY5pjFIyjUCV0WVJ-s0lumZYYXuCT6pUgPPDZZprtGvZaAdw9PaJ-wqFbaOlq6dA/s320/yusynth_dualvco_front.jpeg" border="0" alt="" id="BLOGGER_PHOTO_ID_5446737866967736386" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgo9LCfo-t3GthWRtWkH7qYxrlqBTP3sIqP0CIrtTFVyrsO_b0WVJVRcz4aFTuD4BZGwwHwsdr7FXBW0k5eNxTUD535hZWd6j7imjADS9pbHUWKsY5uI3PcMRGNlo1vxoMph0yOjY6Ey9c/s1600-h/yusynth_dualvco_side.jpeg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 309px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgo9LCfo-t3GthWRtWkH7qYxrlqBTP3sIqP0CIrtTFVyrsO_b0WVJVRcz4aFTuD4BZGwwHwsdr7FXBW0k5eNxTUD535hZWd6j7imjADS9pbHUWKsY5uI3PcMRGNlo1vxoMph0yOjY6Ey9c/s320/yusynth_dualvco_side.jpeg" border="0" alt="" id="BLOGGER_PHOTO_ID_5446737801280605122" /></a>Yes, my wiring is a mess. :)<div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_e665PegOzBVmng_zrVUttY-gNlzlbdY2FTtAXOQICChukEdJxS3XZOXwJzYwyeYeLxuQFP1GoD1dN4rwwxrPseIjd2NtOY2Bzxm5rwqvj-9wa3StQlMhA9GqTcrVNjdoppjm2SV5Z88/s1600-h/yusynth_dualvco_rear.jpeg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 318px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_e665PegOzBVmng_zrVUttY-gNlzlbdY2FTtAXOQICChukEdJxS3XZOXwJzYwyeYeLxuQFP1GoD1dN4rwwxrPseIjd2NtOY2Bzxm5rwqvj-9wa3StQlMhA9GqTcrVNjdoppjm2SV5Z88/s320/yusynth_dualvco_rear.jpeg" border="0" alt="" id="BLOGGER_PHOTO_ID_5446737717176436722" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8cK0I9TwxgHRiOICMgEQVGzFpBKpBVr6n0apuc67oZ_FG9MOm3kujwdhWhAAEHBQ9gXi6pNi6H9Xfw8NH8egiU6ve_QQxSJrEt59MrG1kOWtgisbPVC_NGcc-0VM4c9x8BBgp2sC3RJ4/s1600-h/yusynth_dualvco_front2.jpeg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 311px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8cK0I9TwxgHRiOICMgEQVGzFpBKpBVr6n0apuc67oZ_FG9MOm3kujwdhWhAAEHBQ9gXi6pNi6H9Xfw8NH8egiU6ve_QQxSJrEt59MrG1kOWtgisbPVC_NGcc-0VM4c9x8BBgp2sC3RJ4/s320/yusynth_dualvco_front2.jpeg" border="0" alt="" id="BLOGGER_PHOTO_ID_5446737565550694162" /></a></div><div><br /></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-87494100275523248512010-02-27T21:26:00.004+01:002010-02-27T21:31:38.250+01:00My first modular sound sampleI've made a patch on the modular, with 2 VCOs into the EMS VCF, and with 2 LFOs modulating the first VCOs pitch. The EMS VCF's output went out to the Behringer DSP, and then into the computer for recording.<div>Some manual knob twiddling...</div><div><br /></div><div><a href="http://ent.hu/~vinnui/modular_first.aif">Lossless sample here.</a></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com2tag:blogger.com,1999:blog-2921921635486192042.post-64742719701653611002010-02-27T19:22:00.006+01:002010-02-27T19:51:48.785+01:00YuSynth EMS VCF ready!<div style="text-align: left;">My first VCF is ready! The <a href="http://yusynth.net/Modular/EN/EMSVCF/index.html">YuSynth EMS VCS3 diode ladder VCF</a> clone is a cool sounding filter, and it has special resonance behavior. Based on the <a href="http://electro-music.com/forum/forum-170.html">YuSynth section of the E-M forum</a>, the value of the resistor R41 may need to reduced, to match the 2N3819 JFET characteristics. I can't able to reach self-oscillation with the standard 680K, so I reduced it to 220K and then</div><div> to 180K, which is finally correct.</div><div><br /></div><div>The TL074 which I've used was faulty, so the control and the input levels are started to wiggle after a few minutes, and large amounts of noise went to the output. After some "air cooling", the levels are normalized, and the noise was dissapeared, at this point I've realized, that this opamp need to be replaced.</div><div><br /></div><div><br /></div><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRGIaCz1k61uEUz3oihTYKsxEFY9sDNwIKKGSalspKp0UOkTrhlPp87blqBXbfBaLCrN_dEoBRySUrWOSAlmK8fBLfiSjeDD0lnoxhkqiGtuCrywh1K-Ah1MaaJ5ybgQM9tKvsPC1HVSw/s320/emsvcf3.JPG" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 201px; height: 320px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5442990834158963154" /><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggF31z6yXNVwhXbXYwkC9m24pBZjoFMOfBQi8Nq5RyRBEwexAYDSpx_lvwJlQsV2dXe_NB0Kvq9kW1Tf-ASDHkfTzl1WpjjU7ozGOLckehC3YJRjMQAmBMPapQoOB3Kaz0j8FQjezEoWg/s320/emsvcf2.JPG" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 307px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5442990775026225090" /><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0yHV5bRNfc3FUDAMLVZniL4W0Pi8JPA6m1qOwan-NdXY-rgt5uFJM_TkwBUwrgxqcqWVfU0GAZ05hTFLlWoBZ7tEMsMJ8yhd_9p6Ed4lR6mxLskxkSrNPcmWJmWrnCvkOGOHhEdXCuOM/s320/emsvcf1.JPG" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 296px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5442990682927181714" /><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2KkVBpm0V2LXq3xlqUn0In3q1oFqxyuCOwP3kmK90X-KPG2kXvYr1iPonMU-sW9YclBVGSr8n4Yr8DJh1uLSvh0ufirxTCeUUAI_jCAd3PP_84OpkvvaBQ2ZZo4C4CjGxyac-1p-II1o/s320/working_20100227.JPG" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 240px;" border="0" alt="" id="BLOGGER_PHOTO_ID_5442994756094115058" /><div style="text-align: center;"><br /></div>vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com0tag:blogger.com,1999:blog-2921921635486192042.post-6553281604193150292010-02-23T20:51:00.003+01:002010-02-23T21:03:10.843+01:00My first patch<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs6V-yypSr8DHrOlhW8DT9JchVyCVUdwSsxzw73hvskHbmL80Iurn5NvfaMIqivoa2M4GIu6US4_sWGKUsvGCmDrjV41IbdCZzZLZ09uIFrhAwqMyb8HPfFAxQl9db371liWVKnn0xrwU/s1600-h/first_noodle.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 200px; height: 156px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs6V-yypSr8DHrOlhW8DT9JchVyCVUdwSsxzw73hvskHbmL80Iurn5NvfaMIqivoa2M4GIu6US4_sWGKUsvGCmDrjV41IbdCZzZLZ09uIFrhAwqMyb8HPfFAxQl9db371liWVKnn0xrwU/s200/first_noodle.jpg" alt="" id="BLOGGER_PHOTO_ID_5441529190486461410" border="0" /></a>Today, I've installed the two working YuSynth VCOs into the case. They are not calibrated yet, but for making fun, and some noise, they are perfect. :) The power input of the modules was directly wired to the PSU output pins, but later I will make proper power distributor PCBs.<br /><br />I've used my existing gear to extend the capabilities of the basic 4 modules of my modular. I don't have a working VCF, so I've used the MAM Warp9 filter, and the Virtualizer, to effect the sound... it's so exciting! :)vinnuihttp://www.blogger.com/profile/03351359769500534507noreply@blogger.com2