* Extern dsp device
@ 2010-08-14 21:14 Christoph Kuhr
2010-08-15 11:09 ` Florian Faber
0 siblings, 1 reply; 3+ messages in thread
From: Christoph Kuhr @ 2010-08-14 21:14 UTC (permalink / raw)
To: alsa-devel
Hi everybody,
In my bachlor project im planing to realise an outboard fpga dsp
device connected by gbit ethernet and driven by alsa.
The idea:
computer system with linux rt kernel, extra gbit ethernet if and for
example rme hdsp 9652 audio if.
Outboard fpga with gbit if and DSP routines (PureD ata Engine?)
Now the fpga board is connected via gbit eth, the kernel gets it and
inserts the gbit ethernet card into the audio signal path.
Managed with and alsa driver, cooperating with the snd-rme9652.
With a gui sending OSC to the fpga board, controlling the dsp.
Goal: zero-latency routing and dsp
Do you think this strategy might work?
Ck
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Extern dsp device
2010-08-14 21:14 Extern dsp device Christoph Kuhr
@ 2010-08-15 11:09 ` Florian Faber
2010-08-15 18:55 ` Christoph Kuhr
0 siblings, 1 reply; 3+ messages in thread
From: Florian Faber @ 2010-08-15 11:09 UTC (permalink / raw)
To: alsa-devel
On 08/14/10 23:14, Christoph Kuhr wrote:
> Goal: zero-latency routing and dsp
This is far from being zero latency. Why don't you connect the FPGA to
the ADAT ports where you can work with the audio data on a proper level.
You can still control the FPGA via Ethernet.
Besides, what would be the practical use of such a plug-in-device?
Flo
--
Machines can do the work, so people have time to think.
public key DA43FEF4 x-hkp://wwwkeys.eu.pgp.net
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Extern dsp device
2010-08-15 11:09 ` Florian Faber
@ 2010-08-15 18:55 ` Christoph Kuhr
0 siblings, 0 replies; 3+ messages in thread
From: Christoph Kuhr @ 2010-08-15 18:55 UTC (permalink / raw)
To: Florian Faber; +Cc: alsa-devel
Hi,
The practical use would be the processing of the IOs of the soundcard
in live performances.
Ck
Am 15.08.2010 um 13:09 schrieb Florian Faber <faber@faberman.de>:
> On 08/14/10 23:14, Christoph Kuhr wrote:
>
>> Goal: zero-latency routing and dsp
>
> This is far from being zero latency. Why don't you connect the FPGA to
> the ADAT ports where you can work with the audio data on a proper
> level.
> You can still control the FPGA via Ethernet.
>
> Besides, what would be the practical use of such a plug-in-device?
>
>
> Flo
> --
> Machines can do the work, so people have time to think.
> public key DA43FEF4 x-hkp://wwwkeys.eu.pgp.net
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-08-14 21:14 Extern dsp device Christoph Kuhr
2010-08-15 11:09 ` Florian Faber
2010-08-15 18:55 ` Christoph Kuhr
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