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But that's what a jitter buffer will do, eventually - drop a packet. And it's better to drop a silence packet. Cheers, .a -----Original Message----- From: Jean-Marc Valin [mailto:jean-marc.valin@usherbrooke.ca] Sent: Wednesday, December 21, 2005 3:39 PM To: Alex Bakaev Cc: Shantanu Gramsci; speex-dev@xiph.org Subject: RE: [Speex-dev] Bitrate problem On Wed, 2005-12-21 at 15:29 -0800, Alex Bakaev wrote: > This is a common problem. Sound cards run at different clock speeds > (but your difference seems kinda high). > What I'd suggest is dropping silen...

...figured for. I never tried speex jitter buffer. What does it do when input bitrate is higher or lower ? As an alternate solution, I was thinking to play with directsound playrate [using SetFrequency()]. Has anyone used it to solve such problem? Any comment is appreciated. -- Shantanu --- Alex Bakaev <Alex.Bakaev@citrix.com> wrote: > But that's what a jitter buffer will do, eventually > - > drop a packet. And it's better to drop a silence > packet. > > Cheers, > .a > > -----Original Message----- > From: Jean-Marc Valin > [mailto:jean-marc.valin...

...ch. I use a default of 0.0015 in my program and it seems to work well. For bounds of the GUI slider, I use 0.00005 and 0.01. Sorry, but I don't know how these values translate to dB or any other standard measurement. You would have to relate them to my code from before. Tom "Alex Bakaev" <Alex.Bakaev@citrix.com> wrote: > > Tom, > > > >I finally switched to a very simple power threshold > check and all of my problems went away. It worked far > better than > > > what are the threshold values you key off of? > > Thanks, >...

-----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Thorvald Natvig Sent: Monday, March 20, 2006 12:11 PM To: speex-dev@xiph.org Subject: Re: [Speex-dev] Who is using the jitter buffer? But I must say that it really does work well at the moment, at least from the "minimizing latency" point of view :) How do you timestamp the

> how about tcp? > in tcp you write a packet that got a possible length. > you send one packet after another, whitch stamp is incrementet by one > and if your incoming packet is gone in other steps than 1, the client has > to resend it. > Let me think some days about it and i will get another system. > Time is relative. > > Hm, you send a packet that needs to be in a

Hello! I'm getting SING errors from the log() function. Here is the code inside the vbr_analysis() function. if (ener<60000) { if (vbr->consec_noise>2) qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3)); if (ener<10000&&vbr->consec_noise>2) qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3)); if (qual<0) qual=0;

...--- ------------- Yes, that's definitely a bug in the vbr code, there's an easy fix for that. Just replace: qual += .3*log(ener/60000.0); with qual += .3*log((ener+1)/60000.0); Jean-Marc ========================================================= === On Mon, 2005-12-12 at 18:06 -0800, Alex Bakaev wrote: > Hello! > > I'm getting SING errors from the log() function. Here is the code > inside the vbr_analysis() function. > > if (ener<60000) > { > if (vbr->consec_noise>2) > qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3)); &g...

-----Original Message----- From: Jean-Marc Valin [mailto:Jean-Marc.Valin@USherbrooke.ca] Sent: Monday, March 20, 2006 2:22 PM To: Alex Bakaev Cc: Thorvald Natvig; speex-dev@xiph.org Subject: RE: [Speex-dev] Who is using the jitter buffer? The timestamps always increment by 160 (samples) in narrowband and 32 in wideband. It's like using the capture soundcard as clock. Note that the timestamps send and the timestamps received don'...

Hi! It seems that using a different compiler (I assume the development is done with MSC) uncovers various issues with the floating point. Here is the second one I'm seeing - DOMAIN error from sqrt(). In the open_loop_nbest_pitch(), this line: g = DIV32(corr[i-start], 10+SHR32(MULT16_16(spx_sqrt(e0),spx_sqrt(energy[i-start]) ),6)); The values are: e0 is 7.2 i is 142, start is 17

This is a common problem. Sound cards run at different clock speeds (but your difference seems kinda high). What I'd suggest is dropping silence packets once in a while. .a -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Shantanu Gramsci Sent: Wednesday, December 21, 2005 2:05 PM To: speex-dev@xiph.org Subject: [Speex-dev] Bitrate

If you get BDS 2006, you will get C++ compiler as a part of the package. Then you will be able to build a DLL or static library (I think Delphi can link to C libraries). If this is not an option for you, I will try to build you a DLL. The only problem is that I'm not certain what exported functions you'd need. .a ________________________________ From: speex-dev-bounces@xiph.org

You need to use a jitter buffer on the playback side if you are sending over the Internet. You can use the Speex's jitter buffer. ________________________________ From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Carlo Cappelletti Sent: Monday, January 09, 2006 8:27 AM To: speex-dev@xiph.org Subject: [Speex-dev] Using speex (newbie) Hi, i'm using speex

I have no problems compiling with Borland compiler (in fact it helped uncover a couple of math issues during run-time). I use BDS 2006. What's happening in your case is that the Speex itself is not linked in. I suggest you create a library out of the C sources and link it in with your test app. HTH, .a -----Original Message----- From: speex-dev-bounces@xiph.org

I think you need to enclose the speex header files in the extern "C" {} ________________________________ From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Alex Lupoian Sent: Sunday, March 12, 2006 6:10 AM To: speex-dev@xiph.org Subject: [Speex-dev] help Hi I am building an application on Visual Studio 2005 using Visual C++ Win32 SmartDevice

So I think that that final result is pretty amazing. That's 35% less bandwidth usage than G.729. Even without the preprocessors help you do 17% better. Regards, Steve Davies _______________________________________________ Speex-dev mailing list Speex-dev@xiph.org http://lists.xiph.org/mailman/listinfo/speex-dev

I used Microsoft text to speech with speex. It sounded reasonably well. I didn't experiment with various quality settings (8KHz, default quality). I was capturing audio from a sound card, not the direct wave data from the TTS engine. .a -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Reed Hedges Sent: Friday, May 26, 2006 7:23 AM

Che face? :) I suspect you should build your own .lib file - not use the pre-existing one. ________________________________ From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Alex Lupoian Sent: Tuesday, March 14, 2006 10:34 AM To: speex-dev@xiph.org Subject: [Speex-dev] Windows Mobile 5.0 SDK - SPEEX Hello I've looked into SPEEX SDK and source codes

> That's basically my question: the timestamps at the source and > destination are not related. Just incrementing by number of samples > doesn't really convey the real time, does it? How would a jitter > buffer know that a packet is late/early? Simple, I know what packet I just played. That gives me the "time". The jitter buffer actually makes no difference (and

Well, the SDP is not used in the payload, only in the signaling negotiation. In any case, if you control both ends, just pick a payload number from the dynamic range and use it. .a -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Juan Zapatero Sent: Monday, January 23, 2006 1:22 AM To: Speex-dev@xiph.org; Duane Storey Subject: RE: