similar to: AEC diagnistics generated files

Sorry for not being accurate in the original question. My testing environment is set to 20ms frames (PCM 16 8 1 to be precise). I have verified that all the frames that I feed to the AEC have the fixed size of 320 bytes. So this is why I am presuming that the the dumped files should be of equal size. The output signal is good and not distorted. It has echo, though. In a try to diagnose that I

Hi everyone, I think this should be interesting to all of those with echo cancellation problems. I finally check in some code to make these problems easier to debug. You'll need to have svn version for this. First, you need to manually define DUMP_ECHO_CANCEL_DATA in the compilation (sorry configure switch for now). With that, the AEC will automatically save the near-end, far-end and output

> Thanks for the great work. It indeed helps to diagnose of echo > canceller and narrow down the > problem area. Good, so it worked for you? > I am not an expert in the signaling processing but I > wonder if it is possible > to add the linearity check in the echo_diagnostic function? Theoretically, yes. In practice, I'm not sure how accurate it would be. Do you have any

Definitely! It tells me that my delay is fine but drifting is -15. I use the same onboard sound to record the near end and far end voice. So I can assume it should be fine? But I don't see the any different between input and output the echo_canceller function for this recording. Maybe there is some nonlinearity issue there? The link of this file(Capture1.zip) is in

All I can say for now is that: 1) My diagnostic tool does funny things that need to be fixed 2) It was probably also getting confused by the clicks at the end of the files 3) There seems to be odd things with your recordings, though I can't say what that would be. Are you changing something during the recording by any chance? Note that if a person close to the mic of speaker moves, that

Hi Guys, I am trying to incorporate the speex AEC into my RTP stack. Trying to diagnose why the echo is not being cancelled I enabled DUMP_ECHO_CANCEL_DATA as per the docs. The problem is that the dump files the AEC generates are of different size. As I understand this and looking at echo_diagnostic.m, the files are supposed to be of same size. Can someone give me a hint as to why this could

hello All I believe, more improvements require echo diagnostic script for octave tool. First of all, I found mistyping inside script, where hardcoded size of buffer used for matrix creation (1024) has to be replaced with variable from function parameter. I'm not sure, if octave displaying messages while executing script or only on success completion, however it would be good to have more

I actually forgot to mention that I'm using ultra-wideband mode, but seems like you understood that anyway. Is this true that Speex echo cancellation only performs well in narrowband mode !? I've been using 100 ms as the default tail length. I don't know what the ideal tail length would be. I have tried shorter and longer tails but it hasn't made any difference. Does

Ok, let me be more clear on this. AFAIK, Windows OS doesn't expose speaker input as other OS ( Linux, Mac OS...). That puts you in bad spot in using Speex AEC with windows. Only way to work is to use Soundcard with ASIO functionality which does give you speaker input. But then you would have to impose that requirement on all your users. I heard Speex AEC works great from developer who

Well, I am not the person to be asked about how Speex AEC works :) And I was referring speaker input as having direct access into what has been played thru speaker. (ASIO Soundcard provides interface for that) So if I am remebering correctly, with data from Mic and Speaker in sync, speex AEC should do the job. Tim _____ From: Guilherme Balena Versiani [mailto:guibv at

Hi I've been debugging and troubleshooting echo cancellation myself recently and I have made some observations. First of all playback and recording must be synchronized. There cannot be any clock drift between the microphone signal and the speaker (echo) signal. This has been said many times in the mailing list, but I will repeat it anyway. You have to first make sure that this is not your

On Thursday, 13 June 2019 09:18:25 PDT Goetz, Patrick G via samba wrote: > On 6/13/19 10:48 AM, Alexey A Nikitin via samba wrote: > > According to the MS docs SID=('S-'+version+identifier authority value+domain or computer identifier+RID). The SIDs that don't contain RID are the special cases of Machine SID, Domain SID, Service SID, and some predefined universal well-known

Hi everyone, It looks like when I do 'net ads join' the PTR records for the host are not created, whereas when I do domain join on a Windows machine the PTR records do get created. Thus the question I have: does Winbind have the ability to create PTR records but simply doesn't create them by default or unless certain conditions are met? If it does, how do I make sure Winbind creates

> Am 18.10.2019 um 21:38 schrieb Alexey A Nikitin <nikitin at amazon.com>: > > On Friday, 18 October 2019 12:24:46 PDT Ralph Boehme wrote: >> You won't loose connectivity anyway. winbindd will just have to go >> through DC lookup again in certain scenarios. > > This is exactly what I'd like to avoid. as long as you don't restart winbindd it will

On Fri, Apr 03, 2020 at 03:26:42PM -0700, Alexey A Nikitin via samba wrote: > On Friday, 3 April 2020 10:46:54 PDT Ralph Boehme wrote: > > Am 4/1/20 um 11:09 PM schrieb Alexey A Nikitin via samba: > > > Is there a way, preferrably without ugly hacks, to prevent this from happening on accident, by mistake? By this I mean ideally so that Winbind remains responsive even if someone

On Thu, May 28, 2020 at 01:11:26PM -0700, Alexey A Nikitin wrote: > On Wednesday, 27 May 2020 16:21:31 PDT Jeremy Allison wrote: > > On Wed, May 27, 2020 at 12:54:49PM -0700, Alexey A Nikitin via samba wrote: > > > 3. Are the rules for how a DC gets put into NEG_CONN_CACHE documented anywhere besides the code itself, or wading through the code is my only option of getting to know

On Mon, 25 Feb 2019 16:14:53 -0800 Alexey A Nikitin <nikitin at amazon.com> wrote: > Hi Rowland, > > On Friday, 22 February 2019 08:03:11 PST Rowland Penny via samba > wrote: > > You also shouldn't use winbind on the shadow line > > Perhaps a stupid question, but my google-fu doesn't seem to be good > enough to find an answer myself: what is the exact

Hi I'm debugging why echo cancellation does not work in my app using the DUMP_ECHO_CANCEL_DATA flag. What format does the data I receive have, looks like 16bit integers just dumped but when plotting it in MATLAB I do not get a raw audio data signal I expected. Kind Regards //Gunnar Gunnar Karlsson HotSwap Stockholm AB Landsv?gen 39| SE-172 63 Sundbyberg, Sweden Mobile +46 739

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On 13/06/2019 16:48, Alexey A Nikitin wrote: > On Thursday, 13 June 2019 00:41:09 PDT Rowland penny via samba wrote: >> On 13/06/2019 07:55, Alexey A Nikitin wrote: >>> On Wednesday, 12 June 2019 13:07:56 PDT Rowland penny via samba wrote: >>>>>> I think you mean 'RID' instead of 'SID' >>>>> Yes, you're right. The Windows