corpus.blog
56,966 blogs · [ { "id": "01a08772-3b78-72f3-9f6f-fcc439f2bf58", "title": "Weird wiggles, or “Further investigations into what a BBD Chorus unit *really* does”", "url": "https://electricdruid.net/weird-wiggles-bbd-clock-modulation/", "published_at": "2026-06-06T12:00:06+00:00" }, { "id": "01a08772-3b79-714e-a17f-9929858ce829", "title": "Highpass filters in synths", "url": "https://electricdruid.net/highpass-filters-in-synths/", "published_at": "2026-02-27T20:06:25+00:00" }, { "id": "01a08772-3b79-714e-a17f-9929860539ad", "title": "Comparing the CA3080, AS3080E, LM13600 and LM13700 OTAs", "url": "https://electricdruid.net/comparing-otas/", "published_at": "2025-09-28T21:59:18+00:00" }, { "id": "01a08772-3b79-714e-a17f-99298659bd79", "title": "Roland Jupiter 4 Oscillator", "url": "https://electricdruid.net/jupiter4osc/", "published_at": "2025-08-31T18:28:55+00:00" }, { "id": "01a08772-3b79-714e-a17f-992987541631", "title": "Roland filter designs with the IR3109 or AS3109", "url": "https://electricdruid.net/roland-filter-designs-with-the-ir3109-or-as3109/", "published_at": "2025-05-27T14:20:55+00:00" }, { "id": "01a08772-3b79-714e-a17f-992987eac05e", "title": "Analogue Drums: Korg KR-55", "url": "https://electricdruid.net/analogue-drums-korg-kr-55/", "published_at": "2024-08-10T06:45:38+00:00" }, { "id": "01a08772-3b79-714e-a17f-992988d6533e", "title": "Designing a Slapback Echo pedal", "url": "https://electricdruid.net/slapback-echo/", "published_at": "2024-07-27T11:35:40+00:00" }, { "id": "01a08772-3b79-714e-a17f-9929894e9fed", "title": "Analogue Drums: Boss DR-110 Drum Machine", "url": "https://electricdruid.net/analogue-drums-boss-dr-110-drum-machine/", "published_at": "2023-10-21T13:58:44+00:00" }, { "id": "01a08772-3b79-714e-a17f-99298977a5de", "title": "A “Graphic-wave” LFO", "url": "https://electricdruid.net/a-graphic-wave-lfo/", "published_at": "2023-09-17T12:32:39+00:00" }, { "id": "01a08772-3b79-714e-a17f-992989c92944", "title": "Designing a classic OD-1/TS-808/SD-1 Overdrive", "url": "https://electricdruid.net/designing-a-classic-overdrive/", "published_at": "2023-03-08T12:54:43+00:00" }, { "id": "01a0c50a-68db-70af-88ec-7385123c1353", "title": "Two StompLFO projects: Mod Delay", "url": "https://electricdruid.net/two-stomplfo-projects-ptwobble/", "published_at": "2022-08-05T14:25:19+00:00" }, { "id": "01a0c50a-68db-70af-88ec-738512b3963f", "title": "Two StompLFO projects: Mini Tremolo", "url": "https://electricdruid.net/two-stomplfo-projects-mini-tremolo/", "published_at": "2022-08-05T14:24:34+00:00" }, { "id": "01a0c50a-68db-70af-88ec-738512cae927", "title": "Multimode filters, Part 2: Pole-mixing filters", "url": "https://electricdruid.net/multimode-filters-part-2-pole-mixing-filters/", "published_at": "2020-05-24T15:06:44+00:00" }, { "id": "01a0c50a-68db-70af-88ec-73851373a763", "title": "Design a Eurorack “Vintage VCA” with the LM13700", "url": "https://electricdruid.net/design-a-eurorack-vintage-vca-with-the-lm13700/", "published_at": "2020-04-11T16:22:31+00:00" }, { "id": "01a0c50a-68db-70af-88ec-7385137b143a", "title": "A look at the TR-909’s noise generator", "url": "https://electricdruid.net/tr-909-noise-generator/", "published_at": "2019-12-26T19:17:31+00:00" }, { "id": "01a0c50a-68db-70af-88ec-738513ce56bc", "title": "Building the Electric Druid pedals", "url": "https://electricdruid.net/building-druid-pedals/", "published_at": "2019-11-20T12:06:57+00:00" }, { "id": "01a0c50a-68db-70af-88ec-73851428f199", "title": "Roland “Cross Mod” and “Metal Sync” – What do they actually do?", "url": "https://electricdruid.net/roland-cross-mod-metal-sync/", "published_at": "2019-08-27T13:43:36+00:00" }, { "id": "01a0c50a-68db-70af-88ec-7385149238e5", "title": "Which noise chip do I need?", "url": "https://electricdruid.net/which-noise-chip-do-i-need/", "published_at": "2019-07-15T12:18:10+00:00" }, { "id": "01a0c50a-68db-70af-88ec-738514fb67cd", "title": "NOISE2, a white and pink noise source in a single chip", "url": "https://electricdruid.net/noise2-white-pink-noise-source/", "published_at": "2019-05-01T16:43:05+00:00" }, { "id": "01a0c50a-68db-70af-88ec-73851565de0f", "title": "FilterFX – 12dB/oct LP/BP/HP LFO filter with 8 waveshapes", "url": "https://electricdruid.net/filterfx-lp-bp-hp-lfo-filter/", "published_at": "2019-04-03T18:52:42+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183aaeb7e922", "title": "An LED bargraph audio level display", "url": "https://electricdruid.net/led-bargraph-audio-level-display/", "published_at": "2019-03-25T20:01:51+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183aaebf3df9", "title": "Designing the Hard Bargain distortion pedal", "url": "https://electricdruid.net/designing-the-hard-bargain-distortion-pedal/", "published_at": "2019-01-31T12:13:15+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183aaf45d62d", "title": "Digitech PDS-1550 Programmable Distortion pedal analysis", "url": "https://electricdruid.net/digitech-pds-1550-distortion-pedal-analysis/", "published_at": "2018-11-22T11:36:40+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183aaf641f49", "title": "Experiments with variable rate drum sample playback", "url": "https://electricdruid.net/experiments-with-variable-rate-drum-sample-playback/", "published_at": "2018-06-24T09:59:18+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183ab0094e2f", "title": "One-shot Event Generator", "url": "https://electricdruid.net/one-shot-event-generator/", "published_at": "2018-05-28T20:45:46+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183ab0c0831e", "title": "TAPLFO 3C – Squashing the bug", "url": "https://electricdruid.net/taplfo-3c-squashing-the-bug/", "published_at": "2018-04-25T09:01:14+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183ab1216670", "title": "Electric Druid chips: The Next Generation", "url": "https://electricdruid.net/electric-druid-chips-the-next-generation/", "published_at": "2018-02-23T16:24:53+00:00" }, { "id": "01a0c51a-6035-70e2-868f-183ab185309d", "title": "Analog Renaissance? The rebirth of the impossible chips", "url": "https://electricdruid.net/analog-renaissance/", "published_at": "2017-10-26T16:48:09+00:00" }, { "id": "01a0c51a-6036-7159-8264-20ec9b5669a0", "title": "Multimode filters, Part 1: Reconfigurable filters", "url": "https://electricdruid.net/multimode-filters-part-1-reconfigurable-filters/", "published_at": "2017-06-06T07:46:26+00:00" }, { "id": "01a0c51a-6036-7159-8264-20ec9c563b67", "title": "A study of Sub-Oscillators (and Oscillator Waveshaping)", "url": "https://electricdruid.net/a-study-of-sub-oscillators/", "published_at": "2017-06-04T18:45:16+00:00" }, { "id": "01a0c525-50e7-720a-9475-2ba7e03b7196", "title": "Adding Vintage Hiss, Crackle, and Pop!", "url": "https://electricdruid.net/adding-vintage-hiss-crackle-and-pop/", "published_at": "2017-04-02T12:29:35+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c2654bf7", "title": "Adventures in Top Octave Generation", "url": "https://electricdruid.net/adventures-in-top-octave-generation/", "published_at": "2016-12-11T13:17:35+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c2f8c0e9", "title": "Timbral Evolution: Harmonic analysis of classic synth sounds", "url": "https://electricdruid.net/timbral-evolution-harmonic-analysis-of-classic-synth-sounds/", "published_at": "2016-08-30T16:32:51+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c3c4c778", "title": "CEM3340 VCO (Voltage Controlled Oscillator) designs", "url": "https://electricdruid.net/cem3340-vco-voltage-controlled-oscillator-designs/", "published_at": "2016-08-27T14:11:30+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c481869b", "title": "SH-101 replacement processor – a feasibility study", "url": "https://electricdruid.net/sh101-replacement-processor-a-feasibility-study/", "published_at": "2016-08-25T20:10:22+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c526f183", "title": "Flangelicious – A super-dooper flanger (Now in 2 versions!)", "url": "https://electricdruid.net/flangelicious-a-super-dooper-flanger/", "published_at": "2016-05-24T11:01:11+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c53849fb", "title": "DIY 4 Second Digital Delay", "url": "https://electricdruid.net/diy-digital-delay/", "published_at": "2016-05-09T12:17:38+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c5e2271f", "title": "Boss MT-2 Metal Zone pedal analysis", "url": "https://electricdruid.net/boss-mt-2-metal-zone-pedal-analysis/", "published_at": "2016-01-22T11:51:57+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c659c9f2", "title": "Noise Reduction with Companders", "url": "https://electricdruid.net/noise-reduction-with-companders/", "published_at": "2016-01-04T17:10:46+00:00" }, { "id": "01a0c525-50e8-715f-b90c-86b0c6dcb7df", "title": "MIDI clock to analog gate pulses", "url": "https://electricdruid.net/midi-clock-to-analog-gate-pulses/", "published_at": "2015-10-09T20:27:27+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109b95dd10", "title": "RC Filtering for SSM2164 CVs fed from DACs", "url": "https://electricdruid.net/rc-filtering-for-ssm2164-cvs-fed-from-dacs/", "published_at": "2015-06-26T17:48:26+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109c6e9a12", "title": "Investigations into what a BBD Chorus unit *really* does", "url": "https://electricdruid.net/investigations-into-what-a-bbd-chorus-unit-really-does/", "published_at": "2015-06-13T23:07:08+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109cfd818f", "title": "Fourier Analysis for non-mathematicians", "url": "https://electricdruid.net/fourier-analysis-for-non-mathematicians/", "published_at": "2015-06-13T21:17:00+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109da131e4", "title": "Useful design equations for the PT2399", "url": "https://electricdruid.net/useful-design-equations-for-the-pt2399/", "published_at": "2015-06-13T18:39:18+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109e8504e8", "title": "Single VCA crossfader", "url": "https://electricdruid.net/single-vca-crossfader/", "published_at": "2015-06-09T14:59:32+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109f643244", "title": "Voltage Controlled Looping Envelope Generator", "url": "https://electricdruid.net/voltage-controlled-looping-envelope-generator-loopenv-1b/", "published_at": "2013-11-03T10:46:49+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109fb92db6", "title": "Voltage-controlled digital oscillator VCDO1", "url": "https://electricdruid.net/voltage-controlled-digital-oscillator-vcdo1/", "published_at": "2013-11-03T10:43:08+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109fe7e093", "title": "Tap Tempo LFO (TAPLFO V2D)", "url": "https://electricdruid.net/tap-tempo-lfo-taplfo-v2d/", "published_at": "2012-05-08T10:45:02+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f109ffca30d", "title": "Moog 911 ADSR Envelope Generator clone", "url": "https://electricdruid.net/moog-911-adsr-envelope-generator-clone/", "published_at": "2010-02-22T10:45:54+00:00" }, { "id": "01a0c530-ca1e-715e-ac3e-2f10a0702f7b", "title": "White Noise Source for MM5837 / MM5437 replacement", "url": "https://electricdruid.net/white-noise-source-mm5837-mm5437-replacement/", "published_at": "2009-09-29T10:47:32+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f9867b4d57", "title": "Practical LFSR random number generators", "url": "https://electricdruid.net/practical-lfsr-random-number-generators/", "published_at": "2009-05-21T09:54:18+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f98778fe15", "title": "Voltage Controlled ADSR Envelope Generator (VC ADSR 7B)", "url": "https://electricdruid.net/voltage-controlled-adsr-envelope-generator-vc-adsr-7b/", "published_at": "2008-07-20T09:08:17+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f9886bce73", "title": "Envelope Generator – Some notes on the code", "url": "https://electricdruid.net/env-gen-some-notes/", "published_at": "2008-07-11T12:25:18+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f988bb83c1", "title": "CEM3320 Filter designs", "url": "https://electricdruid.net/cem3320-filter-designs/", "published_at": "2008-07-01T13:35:06+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f989a8ba60", "title": "SSM2044 LP Filter designs", "url": "https://electricdruid.net/ssm2044-lp-filter-designs/", "published_at": "2008-06-18T22:08:31+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f989bb0a8b", "title": "Technical aspects of the Hammond Organ", "url": "https://electricdruid.net/technical-aspects-of-the-hammond-organ/", "published_at": "2008-06-15T13:41:11+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f98a08b756", "title": "Voltage Controlled LFO (VCLFO 9D)", "url": "https://electricdruid.net/voltage-controlled-lfo-vclfo-9d/", "published_at": "2008-05-27T10:44:07+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f98a6d6685", "title": "Direct Digital Synthesis (DDS) and Numerically Controlled Oscillators (NCOs)", "url": "https://electricdruid.net/direct-digital-synthesis/", "published_at": "2008-05-22T17:25:35+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f98a9fc456", "title": "Phase Distortion Synthesis", "url": "https://electricdruid.net/phase-distortion-synthesis/", "published_at": "2008-05-21T22:08:08+00:00" }, { "id": "01a0c53a-d58b-73a0-8719-11f98b05bd4a", "title": "Wavetable Oscillators", "url": "https://electricdruid.net/wavetable-oscillators/", "published_at": "2008-05-21T22:02:53+00:00" }, { "id": "01a0c544-02e4-712a-bd45-9e73ea19dfbe", "title": "Roland Juno DCOs", "url": "https://electricdruid.net/roland-juno-dcos/", "published_at": "2008-05-21T17:15:40+00:00" } ] posts Claim your blog
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electricdruid.net

electricdruid.net

2026

Weird wiggles, or “Further investigations into what a BBD Chorus unit *really* does”original ↗
6 Jun 2026
Highpass filters in synthsoriginal ↗
27 Feb 2026

2025

Comparing the CA3080, AS3080E, LM13600 and LM13700 OTAsoriginal ↗
28 Sept 2025
Roland Jupiter 4 Oscillatororiginal ↗
31 Aug 2025
Roland filter designs with the IR3109 or AS3109original ↗
27 May 2025

2024

Analogue Drums: Korg KR-55original ↗
10 Aug 2024
Designing a Slapback Echo pedaloriginal ↗
27 Jul 2024

2023

Analogue Drums: Boss DR-110 Drum Machineoriginal ↗
21 Oct 2023
A “Graphic-wave” LFOoriginal ↗
17 Sept 2023
Designing a classic OD-1/TS-808/SD-1 Overdriveoriginal ↗
8 Mar 2023

2022

Two StompLFO projects: Mod Delayoriginal ↗
5 Aug 2022
Two StompLFO projects: Mini Tremolooriginal ↗
5 Aug 2022

2020

Multimode filters, Part 2: Pole-mixing filtersoriginal ↗
24 May 2020
Design a Eurorack “Vintage VCA” with the LM13700original ↗
11 Apr 2020

2019

A look at the TR-909’s noise generatororiginal ↗
26 Dec 2019
Building the Electric Druid pedalsoriginal ↗
20 Nov 2019
Roland “Cross Mod” and “Metal Sync” – What do they actually do?original ↗
27 Aug 2019
Which noise chip do I need?original ↗
15 Jul 2019
NOISE2, a white and pink noise source in a single chiporiginal ↗
1 May 2019
FilterFX – 12dB/oct LP/BP/HP LFO filter with 8 waveshapesoriginal ↗
3 Apr 2019
An LED bargraph audio level displayoriginal ↗
25 Mar 2019
Designing the Hard Bargain distortion pedaloriginal ↗
31 Jan 2019

2018

Digitech PDS-1550 Programmable Distortion pedal analysisoriginal ↗
22 Nov 2018
Experiments with variable rate drum sample playbackoriginal ↗
24 Jun 2018
One-shot Event Generatororiginal ↗
28 May 2018
TAPLFO 3C – Squashing the bugoriginal ↗
25 Apr 2018
Electric Druid chips: The Next Generationoriginal ↗
23 Feb 2018

2017

Analog Renaissance? The rebirth of the impossible chipsoriginal ↗
26 Oct 2017
Multimode filters, Part 1: Reconfigurable filtersoriginal ↗
6 Jun 2017
A study of Sub-Oscillators (and Oscillator Waveshaping)original ↗
4 Jun 2017
Adding Vintage Hiss, Crackle, and Pop!original ↗
2 Apr 2017

2016

Adventures in Top Octave Generationoriginal ↗
11 Dec 2016
Timbral Evolution: Harmonic analysis of classic synth soundsoriginal ↗
30 Aug 2016
CEM3340 VCO (Voltage Controlled Oscillator) designsoriginal ↗
27 Aug 2016
SH-101 replacement processor – a feasibility studyoriginal ↗
25 Aug 2016
Flangelicious – A super-dooper flanger (Now in 2 versions!)original ↗
24 May 2016
DIY 4 Second Digital Delayoriginal ↗
9 May 2016
Boss MT-2 Metal Zone pedal analysisoriginal ↗
22 Jan 2016
Noise Reduction with Compandersoriginal ↗
4 Jan 2016

2015

MIDI clock to analog gate pulsesoriginal ↗
9 Oct 2015
RC Filtering for SSM2164 CVs fed from DACsoriginal ↗
26 Jun 2015
Investigations into what a BBD Chorus unit *really* doesoriginal ↗
13 Jun 2015
Fourier Analysis for non-mathematiciansoriginal ↗
13 Jun 2015
Useful design equations for the PT2399original ↗
13 Jun 2015
Single VCA crossfaderoriginal ↗
9 Jun 2015

2013

Voltage Controlled Looping Envelope Generatororiginal ↗
3 Nov 2013
Voltage-controlled digital oscillator VCDO1original ↗
3 Nov 2013

2012

Tap Tempo LFO (TAPLFO V2D)original ↗
8 May 2012

2010

Moog 911 ADSR Envelope Generator cloneoriginal ↗
22 Feb 2010

2009

White Noise Source for MM5837 / MM5437 replacementoriginal ↗
29 Sept 2009
Practical LFSR random number generatorsoriginal ↗
21 May 2009

2008

Voltage Controlled ADSR Envelope Generator (VC ADSR 7B)original ↗
20 Jul 2008
Envelope Generator – Some notes on the codeoriginal ↗
11 Jul 2008
CEM3320 Filter designsoriginal ↗
1 Jul 2008
SSM2044 LP Filter designsoriginal ↗
18 Jun 2008
Technical aspects of the Hammond Organoriginal ↗
15 Jun 2008
Voltage Controlled LFO (VCLFO 9D)original ↗
27 May 2008
Direct Digital Synthesis (DDS) and Numerically Controlled Oscillators (NCOs)original ↗
22 May 2008
Phase Distortion Synthesisoriginal ↗
21 May 2008
Wavetable Oscillatorsoriginal ↗
21 May 2008
Roland Juno DCOsoriginal ↗
21 May 2008