open source codec with HD

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Bretton Vine

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Nov 12, 2009, 5:35:17 AM11/12/09
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*delurk* (via link from @RobLith)

http://voiptoday.org/index.php?option=com_content&view=article&id=204:new-open-source-codec-with-hd-quality&catid=46:codec&Itemid=98

Broadcom launches a new codec open source. BV codec was designed from the
ground up to be optimized for voice transmission over IP networks. The main
design goal of BroadVoice was to make the coding delay and codec complexity
as low as possible while maintaining output speech quality as close to
transparent as possible. The following list summarizes the attributes of
BroadVoice16 and BroadVoice32:
[...]

see also http://www.broadcom.com/support/broadvoice/

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Raphaël Jacquot

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Nov 12, 2009, 6:25:43 AM11/12/09
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On Thu, 2009-11-12 at 12:35 +0200, Bretton Vine wrote:
> *delurk* (via link from @RobLith)
>
> http://voiptoday.org/index.php?option=com_content&view=article&id=204:new-open-source-codec-with-hd-quality&catid=46:codec&Itemid=98
>
> Broadcom launches a new codec open source. BV codec was designed from the
> ground up to be optimized for voice transmission over IP networks. The main
> design goal of BroadVoice was to make the coding delay and codec complexity
> as low as possible while maintaining output speech quality as close to
> transparent as possible. The following list summarizes the attributes of
> BroadVoice16 and BroadVoice32:
> [...]
>
> see also http://www.broadcom.com/support/broadvoice/
>

still waiting on documentations for all their chips...

Michael Graves

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Nov 12, 2009, 9:06:59 AM11/12/09
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The interesting thing is that they have released the C source code for
all to try. I'm very curious to hear what folks have to say once
they've had a look through the source. A very early comment from one of
the Freeswitch developers was that there may be issues with it not
being thread safe. Freeswitch has been very quick to implement wideband
codecs in the past.

Michael
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Alexander Chemeris

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Nov 12, 2009, 5:46:39 PM11/12/09
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Hi,

On Thu, Nov 12, 2009 at 17:06, Michael Graves <mgr...@mstvp.com> wrote:
> The interesting thing is that they have released the C source code for
> all to try. I'm very curious to hear what folks have to say once
> they've had a look through the source. A very early comment from one of
> the Freeswitch developers was that there may be issues with it not
> being thread safe. Freeswitch has been very quick to implement wideband
> codecs in the past.

100% of codecs I've ever seen are not thread-safe, and that's the right
approach. Have you meant it uses global variables for storing a state?

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Regards,
Alexander Chemeris.

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