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Old 08 October 2011, 05:28 pm   #2
Shy
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It's definitely an interesting topic. You know, regarding your surprise by this, I can tell for example something that surprised me even more: I have an old analog 10 band vocoder (SEV-66) and it's amazing that even such a seemingly simple processor can retain a huge amount of very comprehensible information from the source (speech for example) with just its noise generator (and with other wide-band input signals). Merely 10 bands and yet pretty much anything is interpreted with comprehensible accuracy. When I compared to 40-band vocoders, not only was there no real improvement, they were actually worse (hard to compare,though, since it's digital implementations).

I don't know about relevant research papers unfortunately, but there are a few here with technical knowledge who might.
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