[asterisk-users] Using asterisk with DSP chips

[Sazzad]

Is it the wrong place for this question?

On Sat, Nov 19, 2011 at 1:23 AM, Sazzad <sazzadbinkamal at gmail.com> wrote:

> Hi,
>
> I have to use asterisk with some dedicated DSP chips, which will do the
> expensive G729 CODEC computing, so that the server processor has minimum
> load. I was informed, I've to use GPAK to implement this. So far I've
> researched, I've found that, Asterisk uses Dahdi to *talk* to external
> devices.
>
> Can you please direct me to references/documentations that clarifies,
>
>    1. The over all architecture of asterisk with dedicated DSP chips,
>    i.e., how does asterisk integrates with dedicated dsp chips?
>    2. Whether embedded scenario is a must for such development or is it
>    possible to use asterisk on server and dsp's through some PCI/Ethernet?
>    3. What could possibly be the build process in such scenario? Tools
>    i.e., cross compilers etc?
>    4. How do asterisk know, that when a call arrives it has to use a
>    particular DSP chip for Encoding/Decoding?
>
> The GPAK user's manual states,
>
> The physical layer of communication between the host processor and a G.PAK
>> DSP is often dependent upon the hardware design.  This interface can be via
>> a host port interface (HPI), shared memory, a PCI bus, Ethernet or any
>> other fast data pathway.
>
>
> So far I've comprehended from the above quotation, it is possible to use
> asterisk on a server and DSPs on some remote location (say, not built into
> the same board where asterisk is running) . Am I correct?
>
> Thank you very much for patient reading.
>
> --
> Sincerely,
> Sazzad Bin Kamal
>



-- 
Sincerely,
Sazzad Bin Kamal
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