search for: asao

..., first of all I want to excuse myself for crossposting. I can't estimate which mailinglist could be the right one for our concern. Struktur AG, member of the Linux Solutions Group e.V., wants to announce an Open Source tender for an implementation of an audio codec compatible with Nellymoser Asao Codec. Struktur wants to pay 6000 US$ for the project. Proposals can be sent to tenders@struktur.de until October, 31st 2006. Deadline for the project is January, 15th 2007. For questions, please contact me. The whole description can be found at http://www.lisog.org/projekte/supported_projects/bou...

..., first of all I want to excuse myself for crossposting. I can't estimate which mailinglist could be the right one for our concern. Struktur AG, member of the Linux Solutions Group e.V., wants to announce an Open Source tender for an implementation of an audio codec compatible with Nellymoser Asao Codec. Struktur wants to pay 6000 US$ for the project. Proposals can be sent to tenders@struktur.de until October, 31st 2006. Deadline for the project is January, 15th 2007. For questions, please contact me. The whole description can be found at http://www.lisog.org/projekte/supported_projects/bou...

Has anyone ever successfully re-implemented a proprietary codec without reverse engineering or decompiling? Or even with reverse engineering? I imagine even if you had the exact code, getting the codebooks without decompiling would be pretty tough. Jean-Marc xiphmont@xiph.org a ?crit : > This seems like a relevant posting to me, no apologies necessary. > > I do ahve one question; does

Has anyone ever successfully re-implemented a proprietary codec without reverse engineering or decompiling? Or even with reverse engineering? I imagine even if you had the exact code, getting the codebooks without decompiling would be pretty tough. Jean-Marc xiphmont@xiph.org a ?crit : > This seems like a relevant posting to me, no apologies necessary. > > I do ahve one question; does

Hi Jean-Marc, Regarding you points: 1) Is it ok if the audio is encoded (using Nelly Moser ASAO) and sent to the client and decoded when it is recevied so the AEC is always performed on raw PCM16 8KHZ ? 2) The audio is moved in 32ms (512 byte) chunks and the reading and writing to the AEC code will be done by separate threads at regular 32 ms intervals. 3) Occasionaly audio is dropped i...

...works ok if people use headphones but we need to stop the howl than can build up if more than one person in a conference has mic to close to speakers. Any ideas? Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > 1) Is it ok if the audio is encoded (using Nelly Moser ASAO) and sent > to the client and decoded when it is recevied so the AEC is always > performed on raw PCM16 8KHZ ? No. The entire path from AEC to loudspeaker and from mic back to AEC must be free of any non-linearity, codec, drift, ... > 2) The audio is moved in 32ms (512 byte) chunks and t...

> 1) Is it ok if the audio is encoded (using Nelly Moser ASAO) and sent > to the client and decoded when it is recevied so the AEC is always > performed on raw PCM16 8KHZ ? No. The entire path from AEC to loudspeaker and from mic back to AEC must be free of any non-linearity, codec, drift, ... > 2) The audio is moved in 32ms (512 byte) chunks and t...

Hi developers, I would appreciate if someone can give me a hand here... I need to run speex on a FPU-less platform with an audio card that only reads samples of type S32_LE (even when it is a 16bits audio card). I understand that if my platform is FPU-less then I should use speex_encode/decode_int() but then, how can I convert my S32_LE sample to S16_LE in order to pass it to speex

...so, is there an estimate of how > much > free CPU time will remain? Enough for other simultaneous > compression/decompression? How much effect would a fixed-point encoder > have > on performance? Should I start considering commercial codecs, such as > Nellymoser's SASE and ASAO? Are there other free or commercial codecs > I > should be looking at? Is there maybe an analog to the comparison chart > at > the website that gives performance characteristics, etc? Or, maybe, > even > just an idea of the baseline CPU that's realistic for realtime full &g...

Hi, I am looking for AEC software which can be run on the server side. This means there will be a fairly constant 600ms or so gap between sending out an audio frame and getting it back with echo. Could Speex AEC be configured to handle these conditions? If so, how good can I expect it to be? Thanks --------------------------------- Yahoo! Mail is the world's

...e AEC To: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> Cc: speex-dev@xiph.org Message-ID: <675806.41850.qm@web86910.mail.ukl.yahoo.com> Content-Type: text/plain; charset="iso-8859-1" Hi Jean-Marc, Regarding you points: 1) Is it ok if the audio is encoded (using Nelly Moser ASAO) and sent to the client and decoded when it is recevied so the AEC is always performed on raw PCM16 8KHZ ? 2) The audio is moved in 32ms (512 byte) chunks and the reading and writing to the AEC code will be done by separate threads at regular 32 ms intervals. 3) Occasionaly audio is dropped if it h...

...encoding *while* decoding? If so, is there an estimate of how much free CPU time will remain? Enough for other simultaneous compression/decompression? How much effect would a fixed-point encoder have on performance? Should I start considering commercial codecs, such as Nellymoser's SASE and ASAO? Are there other free or commercial codecs I should be looking at? Is there maybe an analog to the comparison chart at the website that gives performance characteristics, etc? Or, maybe, even just an idea of the baseline CPU that's realistic for realtime full duplex VOIP? Also, IANAL. The...