Hello Mr,I want to use the speex echo canceller, but i need first documentation about how it works and the algorithm that use (formulas and methods), would you help how to find this because what i found only is that speex echo canceller uses MDF.Regards. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20140526/8b301dbe/attachment.htm