A-129 / 5 Voiced/Unvoiced Detector

The module is no longer in production. The principle of the vocoder has problems with unvoiced modulator signals: For example, the hissing and explosive sounds when speaking (s, sh, t, p, etc.). If they are processed like vowels, the speech intelligibility of the result is usually not particularly high. That’s why vocoders often have modules … Read more

A-177-2 External Foot Controller II

The A-177-2 Foot Controller module is a connection module for a foot controller and a double foot switch. This is not simply a large-to-small multiple, but the module actively generates control voltages or gate signals that are controlled by electrically passive foot switches / foot controllers. A large-to-small multiple, on the other hand, would be … Read more

A-198 Trautonium Manual / Ribbon Controller

The A-198 Trautonium / Ribbon Controller originates from Doepfer’s Trautonium project, which attempted to recreate the components of a Trautonium using modern A-100 modules. Compared to the console of the original, the ribbon controller is playable with significantly less nuance: the original was a fine metal string with several centimeters of pressure travel. Of course, … Read more

A-117 Digital Noise / Random Clock / 808 Sound Source

The Digital Noise Generator A-117 creates random, short impulses. The frequency of these pulses can basically be controlled, namely via the “Rate” controller or alternatively via an externally applied clock. In contrast to an oscillator, the respective occurrence is “yes or no” as well as the length of such a pulse is random (technically “pseudo-random” … Read more

A-168-1 PWM Generator

The A-168-1 is a small auxiliary module that generates a square or pulse oscillation that can be modulated in width for LFOs or VCOs without a square/pulse. This is an interesting feature for LFOs in particular, since almost all LFOs can generate a fixed, symmetrical square wave (at least the A-146 is capable of manually … Read more

A-167 Analog Comparator / Subtractor / Offset Generator

The module is no longer in production. The A-167 Analog Comparator can compare voltages with each other and generate a gate signal. There are many possibilities: comparison of two external voltages, comparison of a voltage (normal or inverted) with a positive or negative threshold value, comparison of the difference between two external voltages with a … Read more