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Thanks Jean-Marc. Is there a Speex trunk for the C64xx I can use? Or do I have to figure what options to turn on (in configure) when building the library? Thanks. Regards, Andy Ngo ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: ndno72-speex@yahoo.com Cc: jtrantow@ieee.org; speex-dev@xiph.org Sent: Tuesday, December 5, 2006 2:52:02 PM Subject: Re: [Speex-dev] Speex support for TI DaVinci processor Hi Andy, Speex itself (the library) should work fine on the C64xx because from the libspeex point of view, just just another 32-bit...

...e DSP gets encoded Speex data via the shared memory, decodes it and then plays it to the speaker. I know there's a Speex port for the TMS320VC5510 but will that port work for the C64xx series? Thanks. Regards Andy ----- Original Message ---- From: Jerry Trantow <jtrantow@ieee.org> To: ndno72-speex@yahoo.com; speex-dev@xiph.org Sent: Tuesday, December 5, 2006 1:55:13 PM Subject: RE: [Speex-dev] Speex support for TI DaVinci processor Do you need to encode and/or decode? I did some work optimizing the DM642 speex 1.1.11.1 encoder earlier this year. I was able to reduce the narrow band...

...n (in configure) when building the library? Thanks. Support is in the main version. Just look at the TI/ directory for extra TI-related stuff. Jean-Marc > Regards, > Andy Ngo > > ----- Original Message ---- > From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> > To: ndno72-speex@yahoo.com > Cc: jtrantow@ieee.org; speex-dev@xiph.org > Sent: Tuesday, December 5, 2006 2:52:02 PM > Subject: Re: [Speex-dev] Speex support for TI DaVinci processor > > Hi Andy, > > Speex itself (the library) should work fine on the C64xx because from > the libspeex...

Tried your fixed_generic.h change but that didn't help. Andy ----- Original Message ---- From: Andy Ngo <ndno72-speex@yahoo.com> To: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> Cc: speex-dev@xiph.org Sent: Wednesday, December 12, 2007 4:13:35 PM Subject: Re: [Speex-dev] 4kbps sounds robotic on TMS320C64 Jean-Marc, Yes, fixed-point is enabled (#define FIXED_POINT in config.h). I haven't...

...ld you > mind sharing the > results you have on ARM? More specifically: > -ARM version, speed > -Complexity, bit-rate used > -Percentage of CPU required > -Compile flags/configure options > > Thanks, > > Jean-Marc > > Le lundi 27 juin 2005 ? 17:44 -0700, > ndno72-speex@yahoo.com a ?crit : > > Dear Speex Developers, > > > > We are currently using the basics features of > Speex > > 1.1.10 on our little embedded ARM processor and it > > works great! However, we hit a brick-wall when > trying > > to use echo cancella...

Hi, sorry for the repost again, but does anyone have a code snippet example of how to use the jitter buffer? Regards, Andy ----- Original Message ---- From: Andy Ngo <ndno72-speex@yahoo.com> To: speex-dev@xiph.org Sent: Wednesday, January 10, 2007 8:09:10 PM Subject: [Speex-dev] Sample snippet of how to use jitter buffer Hi, I searched around in the Speex manual and API but couldn't find a sample code snippet of using the jitter buffer feature; I already goo...

...given a worst case latency (which I'm asking in the first question) inherent in using the jitter buffer feature, is that any way in the code to reduce the latency? Thanks. Regards, Andy ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: Andy Ngo <ndno72-speex@yahoo.com> Cc: speex-dev@xiph.org Sent: Sunday, January 13, 2008 1:00:50 AM Subject: Re: [Speex-dev] Jitter buffer latency The latency changes. It's set to the minimum value that will ensure packets arrive in time. Not sure what you mean by "is there a way to strink the "la...

Dear Speex Developers, We are currently using the basics features of Speex 1.1.10 on our little embedded ARM processor and it works great! However, we hit a brick-wall when trying to use echo cancellation or the pre-processor; our CPU (no FPU) jumped to above 90%. Are there any plans in the immediate future to optimize the VAD/DTX and pre-processor code of Speex (convert to fixed-point, ARM

...orts stereo so I had to convert it to mono before feeding it to Speex); also I had an alignment issue with my buffers I was using on the DSP side. Thanks Jim/Jean-Marc for your help! Regards, Andy ----- Original Message ---- From: Jim Crichton <jim.crichton@comcast.net> To: Andy Ngo <ndno72-speex@yahoo.com> Cc: speex-dev@xiph.org Sent: Tuesday, January 23, 2007 10:51:10 AM Subject: Re: [Speex-dev] Re: Clicking noise using Speex built for TI C64+ DSP ofDaVinci Processor Andy, Send me the wav file and I will try to help you. Also, please send the encoded output from female.wav....

...e it on the DSP and decode it on the ARM side before playing) vs a decoder issue (encode it on the ARM and decode it on the DSP before playing). Any other suggestions? Thanks. Regards, Andy ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: Andy Ngo <ndno72-speex@yahoo.com> Cc: speex-dev@xiph.org Sent: Tuesday, January 23, 2007 2:57:34 AM Subject: Re: Clicking noise using Speex built for TI C64+ DSP of DaVinci Processor Can you test your code with fixed-point on an x86 and see if you have the same problem. You can also try the generic fixed-point...

...quite a bit of work. Just to have an idea of how Speex does, would you mind sharing the results you have on ARM? More specifically: -ARM version, speed -Complexity, bit-rate used -Percentage of CPU required -Compile flags/configure options Thanks, Jean-Marc Le lundi 27 juin 2005 ? 17:44 -0700, ndno72-speex@yahoo.com a ?crit : > Dear Speex Developers, > > We are currently using the basics features of Speex > 1.1.10 on our little embedded ARM processor and it > works great! However, we hit a brick-wall when trying > to use echo cancellation or the pre-processor; our CPU >...

Hi, My company just recently bought a TI DaVinci development board and I'm trying to port Speex to run on it. The TI DaVinci chip has an ARM926 processor and a TMS320C64+ DSP in it. I was able to get Speex somewhat working on a TMS320VC5510 about a year ago but I was wondering is there anything special I need to do to get Speex working on the TMS320C64+ DSP in the DaVinci chip. I

...on has been put on hold so I haven't looked at the more recent changes. If you are tight on MIPS, there are plenty of opportunities to optimize Speex following the BlackFin example. -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of ndno72-speex@yahoo.com Sent: Friday, December 01, 2006 5:18 PM To: speex-dev@xiph.org Subject: [Speex-dev] Speex support for TI DaVinci processor Hi, My company just recently bought a TI DaVinci development board and I'm trying to port Speex to run on it. The TI DaVinci chip has an ARM926 pro...

Hi, My company just recently bought a TI DaVinci development board and I'm trying to port Speex to run on it. The TI DaVinci chip has an ARM926 processor and a TMS320C64+ DSP in it. I was able to get Speex somewhat working on a TMS320VC5510 about a year ago but I was wondering is there anything special I need to do to get Speex working on the TMS320C64+ DSP in the DaVinci chip. I

...macros (#define 's) when compiling for the DSP side, but this can't be the case since 6kbps sounds fine. I'll try your fixed_generic.h suggestion and let you know. Thanks, Andy ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: Andy Ngo <ndno72-speex@yahoo.com> Cc: speex-dev@xiph.org Sent: Wednesday, December 12, 2007 3:52:33 PM Subject: Re: [Speex-dev] 4kbps sounds robotic on TMS320C64 > I'm currently working on the TI DaVinci processor, which has an > ARM926 processor and a TMS320C64+ DSP in it. I have been using Speex &g...

Hi, Is there a white paper describing how the jitter buffer in Speex works and what "side effects" (such as introducing delay) can happen? In the past, I have implemented a similar "dual buffer" algorithm to try to smooth out lost or delayed packets with a fixed know delay (no larger than 2 times the Speex frame). Thanks. Regards, Andy -------------- next part

Hi, I looked at the jitter buffer code and it seems like the maximum number of frames that Speex can hold up to is 200 (SPEEX_JITTER_MAX_BUFFER_SIZE). This is equivalent to 4 seconds (20msec/frame * 200 frames). Can I just reduce this constant to limit the size? I know I'll reduce the smoothness of delayed frames but I want to reduce the delay in case my audio application isn't

Hi, I'm trying to use the jitter buffer feature that comes with Speex but I'm getting unexpected latency. I wrote a client application that does VOIP-like functions and without using jitter buffer, the end-to-end latency is around 250 ms (I'm using lowband 5.97 kpbs). However, when I tried to incorporate the jitter buffer feature, the latency would grow as time elapsed (up to a few

Hi, Our project is using the jitter buffer feature built in Speex. We noticed there are some latency when using the jitter buffer. Does anyone know what is the "worst case" latency inherent in the jitter buffer algorithm? I believe someone already mentioned that it's adaptive but is there a worst case hard number (in terms of 20ms Speex frames)? I'm not familiar with the

Hi, I'm currently working on the TI DaVinci processor, which has an ARM926 processor and a TMS320C64+ DSP in it. I have been using Speex 6kbps (narrowband, quality=2, complexity=1, perceptual_enh=0) on the DSP C64+ side without any issues; the voice sounds very good for such a low bandwidth requirement. However, recently, I tried out the 4kbps mode (changing quality to 1) on the DSP and it