search for: speex_echo_state_init_mc

Hi, I wanted to know how the speex echo canceller can be used for multiple channels audio. I am aware that support had been added for multiple speakers and multiple microphones. Is there any documentation on how speex_echo_state_init_mc can be used in conjunction with speex_channel_decorrelate? Thanks, Mustafa -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20090624/2b9c5539/attachment.htm

Hi, Can anybody show me how to enable stereo AEC, I tried with the following code and the result is bad, degraded output. Init: ec_state = speex_echo_state_init_mc(frame_size, aec_tail, 2, 2); speex_echo_ctl(ec_state, SPEEX_ECHO_SET_SAMPLING_RATE, &sample_rate); preprocess_state_left = speex_preprocess_state_init(frame_size, sample_rate); preprocess_state_right = speex_preprocess_state_init(frame_size, sample_rate); speex_preprocess_ctl(preprocess_state...

If the left and right channels are processed separately as you do, the parameter Mic-Number in speex_echo_state_init_mc should be 1, not 2 On Wed, Feb 10, 2010 at 4:00 AM, <speex-dev-request at xiph.org> wrote: > Send Speex-dev mailing list submissions to > speex-dev at xiph.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.xiph.org/mailman/listinfo...

Hi, Two related news here. First, I've merged in support for stereo (or more channels) acoustic echo cancellation in mainline. The standard AEC remains the same, but I added a speex_echo_state_init_mc() call that takes the number of speakers and microphones. Now, one of the consequence of this new work is that by merging this work into the main tree, I had to do things in git that svn just doesn't support. So it means I can't keep svn updated as I used to and Git is now the place to get...

Please, I noticed in the AEC module documentation that I can set the sampling rate and the frame size (in samples), but I found nothing regarding to the number of channels, no SET and no GET... So, I 'd like to know how I setup the channel's count on AEC.. if the buffer passed to the echo cancellation function should be mono or stereo... Another question: Is there a preferred

...in a circle along the yourte's wall and Pure Data in a linux box. And now she wants to make vocal loops over music and loops over loops... Maybe aec will help her? I did some testing on a small setup, 2 desktop loudspeakers and have very good results (20 to 30dB rejection) with mono music and speex_echo_state_init_mc() set to 1 speaker but nearly no cancellation with a stereo setup. Initializing echo_state with 2 speakers doesn't improve but rather degrade cancellation. Also tried decorrelation but no noticeable effects. And of course sounds are strongly dynamically panned over the 5 loudspeakers. So here...