Hi! I have a question about preprocessor frame_size. I can read in libspeex API http://speex.org/docs/manual/speex-manual/node7.html "It is recommended to use the same value for frame_size as is used by the encoder (20 ms)." But I have no enough RAM(in my embedded project) to bring up preprocessor with 20ms frame size. As I understand, it is possible to use smaller frame size, but it is not recommended. Why? Can I use 32samples frame_size? What about quality/side effects in this case? Echo canceller seems to be OK with 32sample frame_size.... Echo canceller frame_size and preprocessor frame_size must be equal(when using preprocessor residual echo supression)? Another question: can I somehow reduce memory usage if I need only AGC from preprocessor? Thanks a lot! Speex is wonderful! :)