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Discussion Groups | Echo Cancellation
Technical discussions about echo cancellation and adaptive filtering in general.
Search Results for "nlms"
Leaky NLMS [3 Articles]
ganesa1234 - Sep 22 2004
Dear Members
I am Ganesh, working on Echo Cancellation for VoIP networks.
While doing my simulations with a few different algorithms like LMS
and NLMS, i di... 
mips problem?? [2 Articles]
akash damodar sureka - Oct 2 2001
hello everyone,
i am working on echo cancellation.
i have completed the g.165 and g.168 complaince echo canceller.
can somebody tell me how much mips does n... complex NLMS update? [2 Articles]
Chandrasekaran C - Jul 31 2003
Hi all,
I am using NLMS complex Adaptive filter. In the coefficient update part, error
is normalized with input signal power and is multiplied with gain and refe... DC shifting of the filter in NLMS? [7 Articles]
Andrew Xiang - Sep 16 2003
I noticed the DC shifting upward of the filter(impulse response) sometimes?
Anyone know what caused that and how to avoid it?
thanks
Andrew
... echo simulation query using vc++ [2 Articles]
shah...@yahoo.com - Jul 25 2005
hi to all
i am working on acoustiv echo cancellation simulation based on vc++ using nlms algorithm.
i got the result but not up to the mark.i had give wavfile wich has rever... music echo cancellation
Navin - Mar 7 2002
hello all,
I have implemented a 16 bit fixed point (simulation on a PC) nlms based
algorithm in c. While this seems to work great for audio input that is
vocal, i... Re: Simulating an echo canceller [2 Articles]
Manjunath Shet - Jun 7 2007
Hi stas,
you should know adaptive signal processing for this. In my opinion you better study RTDSP by kou and lee I think he has given code also, after that you can add/manipula... Peak search doubts..... [4 Articles]
gmukund_2000 - Feb 6 2002
Hi,
I was reading about the subband NLMs algo the other day.Here there
was a mention of a concept called peak search. This was done to
identify the peaks of the s... Re: How to Detect Double Talk in Acoustic Echo Canceller
Tapas Guha Neogi _98007017_ - Aug 14 2001
hi all..
I had worked on a project on acoustic echo cancellation and would like
to share my knowledge in the field with each of you.I had used an
algorithm to det... can anyone help in designing a decorrelation filter?
kundan burnwal - Mar 12 2005
hi,
can anyone help me in using levinson-durbin alg. for
decorrelation a speech signal? or is their some other
technique to decorrelate a signal? i searched th... implement AEC on DSP
popf...@gmail.com - Jun 13 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... Re: acoustic echo cacellation performance?
anjuman2 - Oct 14 2003
--- In , "andrew_xiang" Re: Estimating the Impulse Response of the room !!!
mike ts - May 2 2006
if you are using white noise as excitation, RLS and
NLMS are pretty close. however, 4 sec is not enough.
use 10...20.
use something like that:
xrcv = wavread();% ref (RCV) sa... Plz help: Feedback cancelation in Public Address System [4 Articles]
Kundan Burnwal - Mar 3 2005
hi,
i'm a newbie,currently doing "Acoustic feedback cancelation in Public
Address System for a Given Room" (in our case,its Lecture Theatre) as
my final yea... Re: ERLE definition [3 Articles]
mukul07 - Oct 1 2002
Hi Maurice & list
Thanks for your mail and clearing this confusion for me--> I guess I
misinterpretted the authors comments in the paper "Acoustic Echo
Control- A...