Sign in

username:

password:



Not a member?

Search echocancel



Search tips

Subscribe to echocancel



echocancel by Keywords

AEC | Double Talk | ERLE | G.168 | LEC | NLMS

Sponsor

Evaluate multicore with Texas Instruments:
Low-cost evaluation module & free software development kit available NOW.

Discussion Groups

See Also

Embedded SystemsFPGAElectronics

Discussion Groups | Echo Cancellation | implement AEC on DSP

Technical discussions about echo cancellation and adaptive filtering in general.

  

Post a new Thread

implement AEC on DSP - popf...@gmail.com - Jun 13 11:54:09 2007

Hi,all
   I have implement an AEC algorithm (Frequency Domain NLMS) on DSP (TI c5509),
but when I test it in real room the ERLE is 16dB(with white noise), will test by
compositive speech source with line_in the ERLE is 25dB.
   But, I always see that some AEC product's ERLE can get 25dB-30dB, So I want
to konw the method they test.
   1,what's the test source. white noise or speech signal?
   2,what's the test environment of there test?
   3,commonly, with a 16bit fixed-point DSP,what's the highest performance can
it get?
   thanks a million!!!
______________________________
StarterWare provides C-based no-OS platform support for the C6000 DSP devices.
Click here for details.



(You need to be a member of echocancel -- send a blank email to echocancel-subscribe@yahoogroups.com )