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a-129-1 & a-129-2 vocoder synthesis section
(vocoder subsystem)

price : $499.00

please note : a129-1 and a129-2 cannot be purchased seperately.

the a-129 series of modules forms a modular vocoder. the basic components are an analysis section (a-129-1) and a synthesis section (a-129-2). as previously mentioned, the vocoder needs two input signals: a voice element which serves as the raw material for the tonal shaping, and is patched into the analysis section; and a carrier signal, which is patched via the instrument input into 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. as a result of this procedure, the carrier signal assumes the tonal character of the speech signal, but with its own pitch maintained.

since the a-129 is a modular vocoder, and the connections between the analysis and synthesis section are external, using patch-leads, you can use this interface to patch in your choice of modules (eg. attenuator, slew limiter, cv-to-midi / midi-to-cv interfaces,, inverter, etc.). there's also the possibility of connecting the frequency bands of the analysis and synthesis sections arbitrarily, so that, for instance, a low frequency band in the speech signal can control a high frequency band in the carrier signal.

the a-129-2 synthesis section can also be used as a stand-alone voltage-controlled filter bank - or in combination with a midi-to-cv interface as a midi-controlled filter bank.

the a-129/1+2 both use 15 high quality narrow filters: 13 band pass filters, 1 low pass and 1 high pass filter.

this module has a maximum current draw of 180ma. it requires 32 te/hp worth of space to fit in a eurorack frame.

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