play 5.39 MB Aug 21, 25 Grumble DIY Hardware and Software Build Pictures 2025 play 15.25 MB Dec 19, 20 Grumble Online Music Drone_19_12 play 1.31 KB Dec 12, 19 Grumble Developers' Corner Just another digital wave generator play 51.96 MB Nov 25, 19 Grumble Arduino Bass Drum play pinging.wav just a short pulse (about 2 msec) to the Audio input
3.75 MB Dec 9, 18 Grumble Developers' Corner Just another Transistor Ladder Filter play FM.wav FM modulation of the filter
7.92 MB Dec 9, 18 Grumble Developers' Corner Just another Transistor Ladder Filter play 7.03 MB Dec 9, 18 Grumble Developers' Corner Just another Transistor Ladder Filter play 4.31 MB Dec 9, 18 Grumble Developers' Corner Just another Transistor Ladder Filter play 802.04 KB Sep 11, 18 Grumble Field recordings For people looking for rare sounds play 722.04 KB Sep 6, 18 Grumble electro-music festivals Dutch Modular Fest, The Hague play swept.mp3 MP3 file with different modulation waveforms, frequencies and voltages
4.34 MB Jul 11, 18 Grumble Arduino arduino (clone) based modular synth play swept.mp3 The AD9833 modulated with several waveforms, frequencies and voltages
4.34 MB Apr 19, 18 Grumble Developers' Corner DDS for audio and clock generation play 45.63 MB Apr 15, 18 Grumble Online Music My first drone play 6.96 MB Sep 23, 17 Grumble DIY Hardware and Software DrooOone Circuits play 147.3 MB Aug 24, 17 Grumble Online Music My first drone play 21.06 MB Mar 4, 17 Grumble Developers' Corner My synth, so far play three_opamps.wav first 20 sec is a TLC274, next 20 sec is a MCP6044 and last 20 sec is a MCP6284 output stage
5.39 MB Feb 6, 17 Grumble Developers' Corner Opl3 player module play 4.3 MB Nov 13, 16 Grumble Arduino Calculate chords with an arduino play 12.68 MB Nov 5, 16 Grumble Developers' Corner Design of a Sawtooth wave generator play 31.85 MB Oct 23, 16 Grumble Developers' Corner Design delay/reverb multiple PT2399 play 5.7 MB Jun 10, 16 Grumble Developers' Corner reverb, echo, flanger, chorus etc... play reverb-01.mp3 starts with the dry signal and later the feedback is turned up.
1.86 MB Jun 7, 16 Grumble Developers' Corner reverb, echo, flanger, chorus etc... play 1.98 MB May 22, 16 Grumble DIY Hardware and Software 2016 Builds! play Filterdemo 01.mp3 I'm using for these files a sequencer, dual VCF, Dual ADSR, 2 channels of the VCA, 2 Signal Generators (square wave)
2.71 MB May 8, 16 Grumble Arduino arduino (clone) based modular synth play Filterdemo 02.mp3 Input is a square wave 250Hz, playing with the F0 and Q of the filter and later some modulation of F0.
Turning up the Q gives some nice ringing and even frequency multiplication.
2.86 MB May 8, 16 Grumble Arduino arduino (clone) based modular synth play 4.75 MB Apr 23, 16 Grumble Developers' Corner New module design: dual VCF play 2.93 MB Apr 23, 16 Grumble Developers' Corner New module design: dual VCF play 5.68 MB Apr 23, 16 Grumble Developers' Corner New module design: dual VCF play 5.93 MB Apr 23, 16 Grumble Developers' Corner New module design: dual VCF play 3.04 MB Apr 23, 16 Grumble Developers' Corner New module design: dual VCF play 71.45 KB Mar 14, 16 Grumble Modular Synthesis Jarre, Equinox 5 how to make this sound play 4.51 MB Feb 28, 16 Grumble Arduino arduino (clone) based modular synth 
