[asterisk-dev] DSP pci board.

[Roy Sigurd Karlsbakk]

Nice feature indeed.
Together with mmapped libpcap, this may make asterisk quite a bit  
more scalable even for RTP-based protocols for which most hardware  
exist.

roy

On Mar 22, 2006, at 11:37 PM, Matt Florell wrote:

> From: http://www.tmcnet.com/usubmit/2006/03/14/1456373.htm
>
> Digium Inc., the creator of Asterisk(TM), and pioneer of open source
> telephony, today announced the availability of new hardware solutions
> to enhance Asterisk transcoding and echo cancellation performance for
> VoIP and PSTN gateways. These new products include the TC400P VoIP
> transcoding card...
>
> <snip>
>
> The TC400P provides hardware transcoding of VoIP codecs; decreasing
> Asterisk's work load and providing improved CPU efficiency and an
> increase in channel density over a software-only solution. The TC400P
> provides Asterisk with full transcoding support and hardware
> acceleration for the G.723.1 and G.729A codecs.
>
>
> Can't wait for more info on this one.
>
> MATT---
>
> On 3/22/06, Wai Wu <wwu at calltrol.com> wrote:
>> I was thinking just patching,  say "codec_gsm.c"
>>
>> -----Original Message-----
>> From: asterisk-dev-bounces at lists.digium.com
>> [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of BJ  
>> Weschke
>> Sent: Wednesday, March 22, 2006 5:07 PM
>> To: Asterisk Developers Mailing List
>> Subject: Re: [asterisk-dev] DSP pci board.
>>
>> On 3/22/06, Wai Wu <wwu at calltrol.com> wrote:
>>>
>>> Hi all,
>>>
>>> Has been poking through the * source code a bit and trying to  
>>> identify
>>
>>> the most CPU demanding piece of code. Is trans-coding the most CPU
>>> demanding? I happen to have access to a DSP pci board. If I can move
>>> the encoder/decoder off the host processor onto the DSP board,  
>>> will I
>>> get a decent performance boost for an * PSTN gateway for VoIP phones
>>> (assuming all VoIP phones are using say g732, g729 or gsm)?
>>> _______________________________________________
>>
>>
>>  You will get a performance increase, but then you'd also have to  
>> write
>> Asterisk drivers for it.
>>
>>
>> --
>> Bird's The Word Technologies, Inc.
>> http://www.btwtech.com/
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--
Roy Sigurd Karlsbakk
roy at karlsbakk.net
---
In space, loud sounds, like explosions, are even louder because there  
is no air to get in the way.