[Speex-dev] Echo canceller problem

[A]

Yes! The same problem :-(

Any idea ?





At 18:55 2006-06-08 +0200, Andrzej Fien wrote:
>Hello everybody.
>I have the same problem like you. I use ARM microcontroller too.
>Here is the list of all functions called by speex_echo_cancel until goes 
>into infinite loop:
>
>speex_echo_cancel()
>   |
>spx_fft
>   |
>kiss_fftr
>   |
>kiss_fft
>   |
>kiss_fft_stride
>   |
>kf_work
>
>Function kf_work looks like:
>
>static void kf_work(kiss_fft_cpx * Fout, const kiss_fft_cpx * f, const 
>size_t fstride, int in_stride, int * factors, const kiss_fft_cfg st)
>{
>  kiss_fft_cpx * Fout_beg=Fout;
>  const int p=*factors++; 		// the radix
>  const int m=*factors++; 		// stage's fft length/p
>  const kiss_fft_cpx * Fout_end = Fout + p*m;
>  if(m==1)
>  {
>    do
>    {
>      *Fout = *f;
>      f += fstride*in_stride;
>    }
>    while(++Fout != Fout_end );
>  }
>  else
>  {
>    do
>    {
>      kf_work(Fout , f, fstride*p, in_stride, factors,st);		// <---------- 
>here this function calls itself and that's why goes infinite
>      f += fstride*in_stride;
>    }
>    while( (Fout += m) != Fout_end );
>  }
>  ...
>  ...
>
>If anybody knows how to work around this problem please help.
>
>Regards
>Andre
>
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