Sonicbirth Tutorial

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SonicBirth is a free Mac OS X app for for creating AU plug-in instruments and sound processors for use in applications like Logic, GarageBand and others with Audio Unit support.

This tutorial will show you how to create a simple reverb unit.

Download SonicBirth at

via gherzog

Pure, Unadulterated Analog Synth Power

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This video, via synthjunk, is a celebration of all that is good – with an emphasis on the pure analog electronica power, using classic synths, sequencers and drum machines. Continue reading

Tom Oberheim On Analog VS Digital & The New Oberheim SEM

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This is part 2 of Mitchell Sigman’s interview with analog synthesis legend Tom Oberheim about the new Oberheim SEM (Synthesizer Expander Module) analog synth module.

See this previous post for part 1 of the Tom Oberheim interview.

The new SEM is available via

Sequential Circuits Pro-One Analog Synthesizer

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Sequential Circuits Pro-One Analog Synthesizer


Vintage synth demo by RetroSound of the Sequential Circuits Pro-One Analog Synthesizer (demo of various filter and envelope settings, Sync, FM, Polymodulation and more); triggered by the Roland TR-606 “Drumatix”drums: Roland TR-606. No external effects or EQ used.

The Pro-One, released in 1981, was one of the last of the classic analog monosynths. It features two VCOs, a 4-pole low-pass filter, two ADSR envelopes, a three octave keyboard, a sequencer and arpeggiator and tons of modulation options. 


  • 2 VCOs – VCO A saw/pulse, VCO B saw/tri/pulse, Noise (CEM-3340 chips)
  • LFO saw, tri, pulse
  • 4-pole lowpass with Cutoff, Resonance, ADSR Envelope, Keyboard Tracking (CEM-3320 Filter chip)
  • Two ADSR envelope generators
  • Arpeg/Seq – Arepg: UP, UP/DOWN patterns, Latch mode;
  • 40 sequencer
  • CV/GATE inputs