[Speex-dev] recorded and played frame synchronization issue
supercroc1974 at yahoo.com
Wed Aug 18 13:28:44 PDT 2010
I did the following tests with the echo canceler, and realized that echo
cancellation is not possible
1. Variable change of offset between 0 and 1 frame. Result: NO echo is canceled
2. Constant offset of 1 frame. Result: NO echo is canceled neither
3. Offset of 1 frame each 10 frames. Result: Some echo is canceled, but creates
a bit of background noise.
Does anyone know what I could take a look at that could help me?
Thanks in advance,
>Regarding the echo canceler, how well should the recorded frame be synchronized
>with the played frame? Would it work if the recorded and played frames passed to
>function speex_echo_cancellation are not synchronized, but there is a changing
>offset between - 20 ms and + 20 ms?
>Thanks in advance,
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