Category Archives: A-145

LFO

A-187-1 VCDSP – Voltage Controlled DSP Effects Module

Echo I

Echo II

Chorus & Delay I

All FX I

Chorus & Delay II

Chorus & Delay III

All FX II

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A-188-1: Doepfer Patches

Standard Flanger Patch

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Voltage Controlled Feedback

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“Enveloped” BBD

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Filtered Feedback

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Clock Filter

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Karplus/Strong Synthesis Basic Patch

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Karplus/Strong Random Melody Patch

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A-100

A-100

“In the A-100, Doepfer have produced a capable and versatile analog modular synthesizer, built in the style of the classic modular systems of the seventies. The renaissance of analog synthesis in the last few years shows that analog sound production has a vital place alongside sampling and digital synthesis, and can produce sounds that are unobtainable by any other means. In addition to the unique sounds of its oscillators, filters, amplifiers, phasers, frequency shifters, and so on, analog synthesis can provide almost unbounded modulation opportunities, conventional and unconventional – limited only by the number and variety of modules available.
In designing the A-100, our priorities were: good sound quality; diversity of modules available; ease of integration into a MIDI system; and, maybe most important of all, affordability.

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A-145 LFO

A-145 LFO

“Module A-145-1 is a low frequency oscillator, which produces cyclical control voltages in a very wide range of frequencies. Five waveforms are available: sawtooth, inverted sawtooth, triangle, sine and square wave.
The LFO can be used as a modulation source for any number of modules – for instance modulating the pulse width or frequency of a VCO, modulation of the cut-off frequency of a VCF, or amplitude modulation with a VCA.
A three-way switch lets you select three frequency ranges, spanning from one cycle every several minutes at the lowest, to moderate audio frequency at the highest (about 4-5 kHz).
The LFO signal can also be synchronised, via the reset input.

Typical frequency ranges depending upon the position of the Frequ. Range switch:

H: about 10Hz – 4.5kHz

M: about 0.1Hz (10 seconds period) – 50Hz

L: about 0.005 Hz (3.5 minutes period) – 5Hz”