electro-music.com -> Developers' Corner https://electro-music.com/forum/ Gyrator bandpass filter https://electro-music.com/forum/viewtopic.php?p=455062#455062 Here is an image of my unit; I used the box of an old router or something. Also a couple of sound examples with white noise. There is considerable switching noise, but that just adds to the character, I think. (I also updated the schematics; the new v ... helge-h Fri, 23 Feb 2024 12:51:40 -0700 generating random reflections with a DSP https://electro-music.com/forum/viewtopic.php?p=454659#454659 Well .. i don't know about finite elements (I assume you meant with FEM) in relation to reverb and I don't know what methods could be used to make directional reverb.

What I do know is that when you set up delay lines of acertain lengh you canfreel ...
blue hell Wed, 15 Nov 2023 10:29:26 -0700
Virtual Analog Synthesizer https://electro-music.com/forum/viewtopic.php?p=454391#454391 Unfortunately, I lost all my old STM32 Nucleo boards in a storage fire, so I recently picked up a couple of Electro-Smith Daisy Seed boards (STM32H750-based).

I ported the NucleoSynth code over to run on these new boards.

There is the STM32CubeI ...
nettech Fri, 22 Sep 2023 18:29:17 -0700
Analog step sequencer design https://electro-music.com/forum/viewtopic.php?p=453707#453707 A schematic would be very helpful if not necessary in answering your question. Grumble Thu, 27 Apr 2023 22:21:05 -0700 analog synth DIY advice https://electro-music.com/forum/viewtopic.php?p=452778#452778 I always suggest www.musicfromouterspace.com for newbie's because there are some projects for starters and they all come with explanations on how it all works. PCB's for the projects can you buy from www.soundtronics.co.uk or you can find layouts for ... Sven Wed, 26 Oct 2022 10:44:58 -0700 New Analog Electronics lectures from Georgia Tech https://electro-music.com/forum/viewtopic.php?p=452555#452555 I'm teaching ECE3400: Analog Electronics, a junior-level elective at Georgia Tech, this semester. Like with my "Analog Circuits for Music Synthesis" and "Guitar Amplification and Effects" classes, I'm recording some lectures for it and putting them on ... abovenyquist Wed, 14 Sep 2022 11:32:02 -0700 LM3900-based VCF https://electro-music.com/forum/viewtopic.php?p=452540#452540 Hi all;

I've recently been trying to build a two-pole VCF with the LM3900 as the voltage control element, just to see how it would do. I'm basing the filter structure and CV system on an Osamu Hoshuyama phaser design, so I can't take credit for how ...
Gogledd Sat, 10 Sep 2022 08:27:41 -0700
Popcorn from a midi file to 2x YMF262 and a WAV TRIGGER https://electro-music.com/forum/viewtopic.php?p=452163#452163 And thank you again :lol:

You are very welcome, Grumble! :D
RykAntoniuk Sat, 16 Jul 2022 16:47:53 -0700
A small analog mono synthesizer... https://electro-music.com/forum/viewtopic.php?p=452158#452158 I love the sound of the unit! Great timbres from the VCF that you added to it! Together, a very liquid’ish sound! Especially with the amplitude modulation from the external oscillator! RykAntoniuk Fri, 15 Jul 2022 13:30:19 -0700 Opl3 player module https://electro-music.com/forum/viewtopic.php?p=452157#452157 Whoa! Well done! RykAntoniuk Fri, 15 Jul 2022 13:22:01 -0700 Take at least 5 https://electro-music.com/forum/viewtopic.php?p=452155#452155 :D Great cover! RykAntoniuk Fri, 15 Jul 2022 13:13:03 -0700 566 LFO design https://electro-music.com/forum/viewtopic.php?p=452097#452097 Everything is described in the datasheet on page 4. You can use Figure1 on page 5. The formula for the output frequency is given. I would try a 10K potentiometer for R1 and start with 1µF for C1. The datasheet also has a diagrams for the output frequ ... Sven Mon, 27 Jun 2022 23:55:32 -0700 Phase effect frequency responses https://electro-music.com/forum/viewtopic.php?p=452039#452039 "Wein bridge oscillator"

Wien, from Max Wien ... same name as the capital of Austria .. you say Vienna, they say Wien (and we say Wenen) :') (but according to Wikipedia William Hewlett invented the oscillator using the Wien bridge as a feedback ...
blue hell Sat, 18 Jun 2022 01:57:30 -0700
CEM 3396 Analog Synth from scratch Project https://electro-music.com/forum/viewtopic.php?p=451939#451939 How is VCO tuning done? My Six Trak had this terrible tuning procedure. blakeAlbion Sun, 29 May 2022 07:38:05 -0700 How flangers work https://electro-music.com/forum/viewtopic.php?p=451422#451422
Different from what he is suggesting, I take the output of the delayed signal from the BBD (bucket brigade device) and add/subtract it from the original signal using an attenuverter so I can add or subtract the delayed signal from the original sign ...
abovenyquist Thu, 10 Mar 2022 19:20:03 -0700
My circuit protection/safety lectures https://electro-music.com/forum/viewtopic.php?p=451388#451388 :thanks: Grumble Sun, 06 Mar 2022 01:20:35 -0700 My lecture on VC phase shift circuits https://electro-music.com/forum/viewtopic.php?p=451015#451015 This video is for my "Guitar Amplification and Effects" class, but I figured there would be crossover interest (quite a few folks use phaser effects on their synths, and there's phasers for modular synths):

https://youtu.be/BMrcuDIoG2Q

Here's ...
abovenyquist Sun, 09 Jan 2022 19:20:23 -0700
MIDIPlexus https://electro-music.com/forum/viewtopic.php?p=450384#450384 https://www.youtube.com/watch?v=kQtWjxqeL0k&t=332s

Silent demo of MIDIPlexus now at its minimal level of functionality. Hopefully my studio will be fully functional next month and I will post a demo of its use.

The next level of functionality wi ...
bachus Fri, 22 Oct 2021 10:41:08 -0700
Midi thru trouble https://electro-music.com/forum/viewtopic.php?p=450371#450371
I have lowered the resistor designated as R101 in your schematic to 68 ohm and put an LED in series with that resistor so I have an indicator if the midi is coming in.

Clever solution. But I prefer more predictable design, like in my second sch ...
ixtern Mon, 18 Oct 2021 01:11:42 -0700
My Midi eurorack https://electro-music.com/forum/viewtopic.php?p=450338#450338 Great, right?
The percussion you hear is coming from the wav trigger.
Grumble Wed, 13 Oct 2021 13:38:44 -0700