Doepfer A-129 1, 2, A-129 3, A-129 4, A-129 5, A-119, A-118, A-117,,, A-190, A-191, MAQ 16/3,,, User manual

Below you will find brief information for Modular Vocoder A-129 1, Modular Vocoder A-129 2, Five-way VC slew limiter A-129 3, Slew controllers A-129 4, Voiced / unvoiced detector A-129 5. The A-129 is a modular vocoder, and the connections between the analysis and synthesis section are external, so you can use this interface to patch in your choice of modules. The A-129 /1 VOC-A is the analysis section, and the A-129 /2 VOC-S is the synthesis section. The speech signal is chopped up and analysed in the A-129/1 module, and then combined with the carrier signal in the A-129/2 synthesis section, and the carrier signal assumes the tonal character of the speech signal, but with its own pitch maintained.

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Doepfer A-129 1, A-129 2, A-129 3, A-129 4, A-129 5 User Manual | Manualzz

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Key features

  • Modular vocoder

  • Analysis and synthesis sections

  • External connections

  • Control voltage outputs and inputs

  • Frequency bands

  • Voiced/unvoiced detection

  • Stand-alone voltage-controlled filterbank

Frequently asked questions

A vocoder is a device that uses a speech signal to modify the tonal character of a carrier signal. The result is a sound that has the pitch and timbre of the carrier signal, but the spectral envelope of the speech signal.

The A-129 vocoder consists of two basic components: the A-129 /1 analysis section and the A-129 /2 synthesis section.

The speech signal is fed into the analysis section, where it is split into different frequency bands. Each band is then processed by an envelope follower, which generates a control voltage proportional to the signal's amplitude. These control voltages are then sent to the synthesis section, where they control the amplitude of the corresponding frequency bands in the carrier signal. The result is a sound that has the tonal character of the speech signal, but with the pitch and timbre of the carrier signal.

The A-129 vocoder can be used to create a variety of effects, including robotic voices, distorted speech, and other experimental sounds. It can also be used as a stand-alone voltage-controlled filterbank.

For professional results, the quality of the speech signal is crucial. Use a microphone that provides a clean and clear signal. The speech signal also needs to have a similar frequency spectrum to the carrier signal. For the best results, use a sawtooth waveform as the carrier signal. Use an equalizer to shape the frequency spectrum of the speech signal.

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