search for: especcialy

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2005 Aug 19
1
Echo cancellation questions
...cancellation algorithm deal well with situation, when one of the users of Speex-based VOIP application has "record-what-you-here" sound card mixer option selected? Did anybody test the algorithm in such conditions? In an application I'm working on the result is not nice - both users (especcialy the one with mentioned option enabled) hear periodic (approx. once a second) loud noise ("knocks"), which seems to be an effect of amplification of background noise caused by echo. Am I using speex_echo_cancel improperly or it's not possible to eliminate echo in such conditions? 3....