Heather Dewey-Hagborg wrote:
Could anyone point me toward a brief explanation of how pitchmarks are used
in diphone synthesis? I am continuing to tweak my festvox generated voice
and am trying to figure out how important the pitchmarks are ie. if I should
try to really tweak them to the point of editing by hand etc.
The are pretty important. They are used to define join points and to
define the pitch of the diphone (to know how much it has to be varied to
the target).
Extracting good pitch marks is hard. For some voices it works well and
for others it does not. Four our system, the pitch marks must align
with the largest peaks in the signal (in voiced regions). There a
parameters that you can tune in bin/make_pm_wave, but I have to admit
even I find them to be somewhat magic. The key ones are -min and -max
though.
There is some discussion here
http://www.festvox.org/bsv/x862.html
Alan
Thanks,
Heather
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