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...mechanism. So... if voice is not detected I just reduce the agc value in order to not amplify the 'silence' otherwise we just increase the agc value if it is below the minimum. Thanks, Daniel ----- Original Message ----- De: Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> Para: danflu at uninet.com.br Cc: speex-dev at xiph.org Assunto: Re: [Speex-dev] VAD speex 1.2rc1 Data: Mon, 16 Mar 2009 21:21:50 -0400 > Hi Daniel, > > Basically, all this says is that the VAD may not perform > as well as the previous one. But it'll depend on your > data. > > Je...

...work on more than one channel. Am I missing something ? Thank you! Daniel Jean-Marc Valin escreveu: > In stereo mode, you need to use the init_mc() call and consider the > number of samples *per channel*. Also, more than 20 ms frames are a bad > idea. > > Jean-Marc > > danflu at uninet.com.br a ?crit : > >> Hi, >> >> I'm using the echo cancellation api and I would like to >> clarify the 'frame_size' parameter used in >> speex_echo_state_init(frame_size,filter_length). >> >> >> In the 'docs' it say...

Hi, I'm using the echo cancellation api and I would like to clarify the 'frame_size' parameter used in speex_echo_state_init(frame_size,filter_length). In the 'docs' it says: "...where frame_size is the amount of data (in samples)you want to process at once..." So... here are my questions: if I use stereo input/output do I have to put the samples doubled ? For

Please, I'm looking at speex rc1 echo_cancellation API docs and I found there is now a funcion for doing decorrelation: void speex_decorrelate( SpeexDecorrState * st, const spx_int16_t * in, spx_int16_t * out, int strength) How does it fit to the speex_echo_cancellation function ? When removing echo from multiple channels I need to decorrelate the input mic first and

Hi, I've been reading the speex echo cancellation documentation and it says : ".... It is important that, at any time, any echo that is present in the input has already been sent to the echo canceller as echo_frame. ... "; All I'm doing in the echo cancellation process is initializing it once with a call to : SpeexEchoState* speex_echo_state_init(int frame_size, int

In stereo mode, you need to use the init_mc() call and consider the number of samples *per channel*. Also, more than 20 ms frames are a bad idea. Jean-Marc danflu at uninet.com.br a ?crit : > Hi, > > I'm using the echo cancellation api and I would like to > clarify the 'frame_size' parameter used in > speex_echo_state_init(frame_size,filter_length). > > > In the 'docs' it says: > > "...where frame_si...

Hello, Need some help using the speex_echo_cancel. I've read the documentation about the speex_echo_cancellation function: speex_echo_cancellation(echo_state, input_frame, echo_frame, output_frame); (in) echo_state => speex internal state. (in) input_frame => audio captured by mic. (in) echo_frame => the signal that was played in the speaker. (out) output_frame => the

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