echo canceller testing

Ivan_Ryzhachkin__Int — Mon, 14 Nov 2005 22:57:27 GMT

Hi!

HavingA.pcmand B.pcm files you can directly construct:

sin = A+B/4; // to be ITUG168 conformant with ERL=6dB.

rin = B

Its better to have not double talk only but some not overlaying parts of speech, i.e.

A[n,n+k]=0,B[n,n+k]!=0 ,k>0

and reverse

A[n+k+1,n+k+t]!=0,B[n+k+1,n+k+t]=0, t>1

As the result you'llobtain sin without B-parts. Echo attenuation within 0.5 sec planned.

Could you pleasetry withsb,sbf modes as well?

Thanks,

WBR

Ivan

topic echo canceller testing in Intel® Integrated Performance Primitives