Vocoder: Synthesizer band pass filter.

As said before the filters are pluggable. You can realize your own filters with your preferred topology. Here i implemented the filters which are used in the Jürgen Haible Living Vocoder. Each filter PCB contains two filters. Both are band pass filters with two exceptions. The first filter in the Vocoder synthesize part must be a high pass filter and the last a low pass filter. I designed two extra filter PCB for this two. High pass / band pass filter and band pass / low pass filter. I updated my website.

Vocoder: Synthesizer schematic band pass filter.

Vocoder: Synthesizer schematic low pass / band pass

Vocoder: Synthesizer schematic high pass / band pass

Vocoder: Synthesizer band pass component values

Vocoder: Synthesizer filters PCB all stuffed