similar to: How we tell who is using VAD ?

I have this showing on my cli while being in a call. Then connection gets broken. Can someone tell me what it means ? Dropping frame of G.729 since we already have a VAD frame at the end Thank you in advance. Bartosz

Hi Marc, Thanks for your quick response. So if VAD is enabled then VBR will be enable although it's a special VBR. How about take out the VAD code from the VBR and remove the code else? Lianghu On 10/24/06, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > > 1) there are VAD related codes in the source file preprocess.c. > > Will VAD still work If I

My data is speech sampled as pcm mono 32khz. I want to use vad for regulating the agc gain mechanism. So... if voice is not detected I just reduce the agc value in order to not amplify the 'silence' otherwise we just increase the agc value if it is below the minimum. Thanks, Daniel ----- Original Message ----- De: Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> Para: danflu at

Hello, I'm try to run speex on some ARM processor. I'd like to cut away some speex features including VBR, ABR and preprocessor while still supporting VAD/DTX. But I've found some puzzles in the source code regarding VAD as below, 1) there are VAD related codes in the source file preprocess.c. Will VAD still work If I don't use the source file preprocess.c? 2)The speex manual

Hello Jean-Marc et al: On 07/06/07, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > - Is there a reference somewhere (other than the source itself) that > > explains how the latest VAD algorithm works? > > Read the source, Luke :-) (sorry) Okay. I had to ask :-) > > > - Is it possible to obtain the VAD status of a Speex stream > >

Hi Jean-Marc, We're exposing the opus_internal_flags data structure so that we can access the value assigned to prevSignalType. Here's a snippet of our code: error = opus_encoder_get_internal_flags(vad->opus, &internalflags); if (error != OPUS_OK) { return OPUSVAD_OPUS_ERROR; } cur_signal_type = internalflags.prevSignalType; if

> I found this message concerning VAD and was wondering whether VAD has > been ported to fixed-point in the latest version? Sorry, VAD is still float, but if you're using the built-in one, float emulation should work (it's not very compute-intensive). Jean-Marc > Thanks, > SingHui > > ---------- Forwarded message ---------- > From: Jean-Marc Valin

Hello all: I am interested in using Speex for an application that streams audio from a (noisy) source, so I am interested in VAD and DTX operation. However, after browsing the archives of this list, I note that a number of people have not been satisfied with the operation of the VAD algorithm in Speex. This leads me to a few questions: - Is there a reference somewhere (other than the source

Dear Jean, Thank you so much for reply my message. I am sorry the function return 38 is speex_bits_write(). This function doesn't work on one of my computers. But after I add the function speex_preprocess(), it works well. I am wondering what is the possible reason? What the function speex_preprocess() does? Another problem I have now is when I enable dtx and vad with function

Hello, I am just asking this because I am note sure if the problem is on my side or not, I saw some comments on SIP realtime today so I was wondering, has anybody has SIP realtime working with a softfone ? If yes, please confirm, that would give me a light. My previous message to the list is below. Thanks. Frederic ----- Original Message ----- From: Frederic Jean To:

Thank you, but I am thinking about trying to move VAD implementation from 1.1.12 to 1.2. I'm not sure about how difficult it could be (maybe impossible due to Jean Marc has disappear). Have you tried this? Cecile. 2009/8/10 jesus <jmorion at toomeeting.com> > Hi Cecile, > > it seems it is a tabu theme, or nobody uses VAD on speex. I've tried > with external EasyVAD

Hi Cecile, it seems it is a tabu theme, or nobody uses VAD on speex. I've tried with external EasyVAD solution but the result was not as spected. Other users of the list suggest an algorithm to filter voice based on the power of the signal, but of course, it is not a voice activity detection. I am waiting also a solution for this, while so I use version 1.1.12. Regards. Cecile Dumotier

Hi, I decide to write to the list because of a strange behaviour when updating from version 1.1.12 to 1.2rc1. My software was running fine with version 1.1.12, but now I want to benefit from advances on AEC. After updating the library to 1.2rc1 and do few changes on my sources, I run the application and discovered that VAD doesn't work so fine as in previous version 1.1.12 (3 years ago). I

Hi, I found this message concerning VAD and was wondering whether VAD has been ported to fixed-point in the latest version? Thanks, SingHui ---------- Forwarded message ---------- From: Jean-Marc Valin <Jean-Marc.Valin@usherbrooke.ca> Date: Jul 22, 2005 1:02 AM Subject: Re: [Speex-dev] Fixed-point To: gue baja <gue_baja@yahoo.com> Cc: speex-dev@xiph.org Hi Baja, Here's a quick

Hi Jean-Marc, Thank you for the valuable feedback. You're correct in that we focused on enabling this just for SILK. Because our solutions are focused on voice, we did not explore doing the same in CELT mode, but we can certainly look into the details of analysis.c. Regarding the concern of exposing internals, do you have a specific proposal in mind? We've been sharing this patch with

Hello Jean-Marc: On 08/06/07, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > Either one. The question is: If we treat the software like a black > > box, and we feed in PCM audio, we get Speex encoded data out. Where is > > the information that indicates whether the encoded data contains > > speech or not? The API has a "get VAD status", but it

Steve Underwood a ?crit : > Coffey, Michael wrote: >> Has it been a whole week since a question about VAD? :-) >> >> I am curious why the VAD algorithm described in G.729 Annex B is not >> used by Speex. Complexity, Patent, Quality, or what? >> > Its not only patented, its so darned good they recently threw it out and > replaced it. :-) I assume the

On Tue, 2003-04-15 at 11:31, Jean-Marc Valin wrote: > > How do i detect whether there is silence in media using speex? > > Is there any API which decides that the audio data only contains > > silence? > > Basically i will have PCM linear data, I want to know whether it is > > complete silence. > > Well, the best way is probably to turn VAD *and*

> - Is there a reference somewhere (other than the source itself) that > explains how the latest VAD algorithm works? Read the source, Luke :-) (sorry) > - Is it possible to obtain the VAD status of a Speex stream > asynchronously? The current API seems to imply that some kind of > polling is required to determine the voice/non-voice status. Don't understand your question.

Hi Jean-Marc I am using speex in my voip app (wideband mode). I have noticed that when VAD kicks in, CPU considerably increases (bitrate decreases to 4 kbps). It takes about 7 ms to encode one frame versus 0.5 ms (for speech). This happens regardless preprocessor is used. Although the issue seems to be driver dependent, it occurs on XP, Vista and Mac OS X. Besides complexity and quality, this