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- Languages
- EN
- Last added
- 2026-10-17
Featured DOEPFER manuals

Doepfer A-129/3 and A-129/4 Modular Vocoder User Manual
The document describes the Doepfer A-129/x series of modules as a modular vocoder system. The A-129/3 module adds a Slew Limiter to the vocoder, featuring five-way Attenuators and Offset Generators. It also includes a Slew Limiter function that requires the companion A-129/4 module for full operation.
The manual details the specific functions of both modules: the A-129/3 provides signal attenuation and offset generation across five CV inputs, while the A-129/4 acts as a controller offering manual and CV control over slew rates. It explains three distinct modes—'Follow', 'Slew', and 'Freeze'—and provides user examples for integrating these modules into a standard vocoder layout or using them as a filter bank.
Covers: Introduction · A-129/3, /4 - Overview · Controls and indicators · In- / Outputs · User examples
Latest DOEPFER manuals
Doepfer A-129/3 and A-129/4 Modular Vocoder User Manual
User Manual 10 pages · 570 KB · ENThis manual covers the Doepfer A-129/3 (Vocoder Slew-Limiter) and A-129/4 (Slew Limiter Controller), detailing their controls, functions, and usage examples…
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in DOEPFER manuals
What is the range of the offset control on module A-129/3?
The offset control range goes from 0 V to +5 V.
From: Doepfer A-129/3 and A-129/4 Modular Vocoder User Manual
How many A-129/3 modules are needed for total control of a 15-band vocoder?
You need three A-129/3 modules.
From: Doepfer A-129/3 and A-129/4 Modular Vocoder User Manual
