GP2X as a RealTime Audio generating device (was Re: [linux-audio-user] status of ams)

Atte André Jensen atte.jensen at
Fri Jan 12 16:14:32 EST 2007

Jay Vaughan wrote:
>> Ok, I'm currently running csound live on a P4 mobile 1.6GHz. Let's
>> call this soft synth index 100. What would you estimate the index of
>> GP2X to be? Just a serious, guess, I'm not gonna come after you if
>> your wrong :-)
> I'd give it between 40 - 60, depending on what you're doing in CSound ..
>> Secondly, would there be any problems (if so which and could they be
>> solved) in getting 1) csound, 2) ams and 3) zynadsubfx running on
>> these things?
> CSound: a cynch. 

Ok you got my attention!

I read that it's a 2.4 kernel, right? From what I know (I run 2.6) 2.4 
has really poor realtime performance out of the box. Do you know:

1) What patches have been applied to the kernel in gp2x?

2) How difficult it would be to replace the kernel with a recent 2.6

3) what latencies have you been able to achieve (with the break-out box 
for audio) with the supplied kernel? I'm not interested in hypothetical 
performance but real world examples.

peace, love & harmony
Atte      | quintet:
                         | compositions:

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