Displaying 20 results from an estimated 4000 matches similar to: "Echo canceller end up more echo than before."
2007 Mar 06
1
Performance of the acoustic echo canceller
It seems like the firefox 2.0 not quite works with hotmail... I am reposting my message again
with IE for easy readability. Sorry about mess.
Hi Jean-Marc, Thanks for the suggesting. I tried the test wtih my recording file offline through the testecho.
I got the same result(no prepocessor echo suppression) as my recording file for that live call.
Basically I don't see the difference
2006 Jun 08
3
Echo canceller problem
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
2007 Sep 17
2
Echocancellation on windows
Hi all,
does anybody has ran echocancellation successfully on windows ?
I have a problem playing audio there. If you play a wav file no mater
how I play it after comparing the captured data with the original file
there is always
difference in the audio length (for 18 sec of audio there is more than
250 ms of difference). Which of course breaks echocancellation.
I've tried playing the audio
2006 Oct 27
2
Echo Canceller trouble in 1.2beta1
Hi Folks,
I am having trouble using speex_echo_cancel. As a starting point, I am
using the testecho.c source code. I compiled the 1.2beta1 version. I
have not tried any other versions of speex.
The document says that the order of arguments to Speex_echo_cancel is
(echo_state, input_frame, echo_frame, output_frame, residue) where
"input_frame" is as captured from mic and
2004 Jul 07
2
Problem SIP Register
I have * box on machine with external ip address and internal one
I'm tring to register to it from to machines - one from innternet (
everything is ok - in sip.conf nat=yes)\
and the other one is in the internal network (in sip.conf - nat=no ) and
it say 403 Forbidden?
Any Ideas ? here are the logs and configs
From the external SIP Client whic registers.
2006 Jun 25
1
echo canceller
speex-dev
How can I user echo canceller with real time net stream,when I test it with file,it's very good,but when I use it in my voice chat,it is not work,is there some working demo like GIPS?
best regards
Yong Chen
szcj23@tom.com
2006 Nov 17
1
echo canceller issue with sudden burst of sound
Hi,When captured speech contain sudden burst of sound like a bell ringing or a loud click sound along with echo, echo canceller seems go wrong in latest svn version. Is it because of sudden change from normal speech to say some high frequency sound?ThanksJam
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2008 Aug 23
1
Echo canceller
I am using 'portaudio' and 'speex' to implement a speech audio
capture/playback.
Preprocess works fine but not the echo canceller (associated with
preprocessor).
I have read 'testecho.c' but it didn't help me.
What I am doing bad? This is my implementation:
One thread to capture and playback, both are different functions called in
different times directly from
2010 Nov 04
1
About Acoustic Echo Canceller
Hello.
I'm from Federal University of Rio Grande do Sul - Brazil and I'm
trying to adapt
speex_echo.h (speex-1.2beta3-win32) to our video-conference software code.
We are working on amplitude values, but I realised that in order to AEC
works, one has to convert amplitude to frequency and filter the echo
frequencies. So, my question is:
Do I have to manually convert amplitude samples to
2006 Jun 09
4
Echo canceller problem
> > 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:
>...
> > else
> > {
> > do
> > {
> > kf_work(Fout , f, fstride*p, in_stride, factors,st); //
><----------
> > here this
2007 Mar 05
1
Performance of the acoustic echo canceller
Hi All, I am working on my master project to port the Speex Acousic Canceller to FPGA. But I am not able to get a satisfied result in its performance whenI integrated it to a SIP softphone as my first step. The SIP softphone calls to a PSTN gateway and lands to my land line phone. I can hear the echo of my every word while I talks on the land line phone. I am using G.711 codec, frame_size 80
2006 May 08
1
Speex echo canceller on TI C55 DSP
Jean-Marc,
I have traced the second infinite loop further. When st->adapted becomes
true (mdf.c line 623), the first Yf[i] value is 4, the leak_estimate is
0xd4e, the resulting r is 3. The first value in st->Rf is 0, so e is 1, and
r is set to e>>1, or 0. A little later there is a divide by r, and there is
the hang.
It seems that the 0 in Rf[0] is the problem, but I am not
2006 Oct 27
2
Echo Canceller trouble in 1.2beta1
Terrific! The patch fixes my problem quite decisively.
I will want to use this with a 16K sample rate. Is it expected to work well with just another slight patch, or will we need to modify it more deeply?
Also, are there any tunable parameters besides tail length? I am wondering about the aggressiveness of adaptation and I know you are an expert in that area.
Thanks so much,
Michael
2006 May 09
2
Speex echo canceller on TI C55 DSP
Just tried your files and I'm not running into any infinite loops and
the cancellation works fine. Unless the C6x has the same problem, I
suspect a 16-bit problem. I'll check and see if I find something. About
the r=0 problem, I can't find where it ends up in a denominator, so I
suspect is not (directly) the problem.
Jean-Marc
Le lundi 08 mai 2006 ? 20:05 -0400, Jim Crichton a ?crit
2007 Mar 13
5
can´t access share by name, but on ip
Hi All !
i?m running Clearcase (IBM Rational) and have some strange problems ... when i use Samba ver 3.21b i can?t access the samba share by name (\\servername\sambashare) but i can access it on ip (\\192.168.1.100\sambashare\) i?m running debug level 10 and it seems like it can?t authenticate when access on netbios/dns/host name but on ip it can ? when running samba ver 3.23b from
2006 May 08
5
Speex echo canceller on TI C55 DSP
Hi Jim,
I've just been made aware of these problems (look for the thread "speex
echo cancellation limitations"). It's on my short-term TODO list.
> If fftwrap.c, I ifdefed out the spx_fft_float and spx_ifft_float routines,
> because there were not used and required smallft.c (which is not so small at
> all) to be added to the build.
Right, need to cleanup that
2008 Jan 14
1
How to use the speex AEC
I would like to add AEC to my program. Since the nature of my program
is such that its playback and recording are asynchronous. I have no
idea whether the testecho.c example will work for me. Anyone here has
experience with the AEC in async mode?
YUN TAO
2013 Mar 16
2
[LLVMdev] internal compiler error when compiling llvm-gcc-4.2-2.9
Thanks for your help, Wei-Ren and Anton.
However since I am doing some experiments with klee(
http://klee.llvm.org/GetStarted.html) and llvm-gcc seems to have better
compatibility with it. So I still hope that I can use llvm-gcc:-)
Hongxu Chen
On Sat, Mar 16, 2013 at 3:35 PM, 陳韋任 (Wei-Ren Chen) [via LLVM] <
ml-node+s1065342n56013h94 at n5.nabble.com> wrote:
> Hi Chen,
>
>
2006 May 09
2
Speex echo canceller on TI C55 DSP
> I built and ran the same test on the TI C64 simulator, and the echo was
> canceled nicely (about 10:1 reduction in the peak amplitude during the
> second of two brief speech bursts). So, my problem must again be related to
> the 16-bit processing on the C5X DSPs.
Good. At least we've narrowed it down a bit.
> Also, the line where it is hanging is:
>
2008 Sep 07
1
Echo cancelling results
Hi,
I wanted to play around with the echo canceller so I tried the testecho
program.
As speaker sound I fed it with a 440 Hz sine wave, and as mic with a 550
Hz + 440 Hz sine waves sound (but the 440 Hz component half the amplitude).
I kind of expected to get a somewhat clean 550 Hz sine out, but it
doesn't seem to work that way.
Are there better samples I can use with testecho to see