[Speex-dev] Clarification of the AEC parameters

Marco Pierleoni pierleoni.m at gmail.com
Wed Dec 16 09:47:15 PST 2009


Hi,

I would like to have some more information about the parameter of
speex_echo_state_init.
I have a clear idea of the importance of the filter_length in the echo
cancellation, what it is more obscure for me is the role of frame_size and
how its value affect the algorithm.
Let use, for example, frame_size = 400, would I obtain the same result of
using frame_size = 200 but with half method call?
Is it this value important for obtaining a smaller time to let the filter
adapt? or filter adapting depends only on the ratio
frame_size/filter_length?

I will be grateful for every more info that you can give me in order to
understand better the role of frame_size algorithm.

Marco Pierleoni
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