Subject: Re: [LAU] midi triggering delay

From: andy baxter <andy@...> · Date: Wednesday, September 9, 2009 - 4:28 pm

andy baxter wrote:

quoted text> Hi all,

>

> I'm trying to get my usb midi keyboard (an edirol PCR 800) working with

> my good laptop (a 1400 MHz core 2 thinkpad X61s). I have jackd running

> with 8 msec latency and no xruns using an onboard intel HDA sound card.

> When I hook up qsynth (fluidsynth) to the keyboard's alsa midi output,

> the notes are triggered with a slight (<0.1s?), and variable time delay.

> Sometimes the note plays immediately on pressing the key; sometimes

> there is a noticeable delay. This does not happen when I use the same

> setup on my old laptop (a 1400 Mhz single core dell).

>   
I've tried kernel 2.6.24.7-rt27, and this is no better with the midi

timing than any of the others (but has a problem with my intel HDA /

Analog devices onboard sound card). Thinking of trying just copying the

kernel and modules from my old laptop (which is running ubuntu hardy I

think) to see if that cures it.
andy

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