Hi Miller,

Thank you for your reply. I didn't know there could be such a difference in performance between two ARM chips.
It seems very attractive indeed, and i think i'll contact the people at CCRMA to ask about the latency they achieved. If it's low enough i'll definitely give it a try.

Cheers,

Pierre.

2012/12/17 Miller Puckette <msp@ucsd.edu>
I could be wrong, but I believe the Beagleboard is ARMv7 and the Pi is
ARM v6 - so BB could easily have twice the floating-point erformance of
Pi.  I'm not sure why and whether there would be any difference in Jack
for the two.  I believe (but am not sure at all) that BB doesn't have the
same USB problems the Pi has.  All in all it's still a very attractive
possibliity, perticularly since the Stanford people have tested and exercised
it thoroughly.

cheers
Miller

On Mon, Dec 17, 2012 at 04:38:40PM +0100, Pierre Massat wrote:
> Dear List,
>
> I came accross this "Stompbox design workshop" (
> https://ccrma.stanford.edu/wiki/Stompbox_2011). They use Pd on a
> beagleboard to make stompboxes.
> They talk about the older version of the beagleboard with a CPU running at
> around 700 MHz. This is the same speed as the RPi's.
>
> I'm wondering what kind of latency they achieved on the beagleboard.
> Leaving aside the problem of the lack of audio in, don't you think we
> should be able to get the same performance on a raspberry pi ?
> Also, I wonder why JACK runs on the beagleboard and not on the RPi.
>
> Cheers,
>
> Pierre.

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