How do vocoders determine whether a sound (usually
vocal) is voice or unvoiced? I have looked at some
scheamtics, but I am not 100% sure what is going on.
What it is determined whether a sound is voice or
unvoiced, how is the vocal handled differently?
When making this determination, is it instantaneous or
is there a "frame" in which it is performed? Are
there ever problems with the signal fluctuating
rapidly between voiced and unvoiced? If so, what kind
of artifacts result?
Thanks!
Shemp
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