linuxaudio.org

On 06/14/2011 09:11 AM, Aaron Krister Johnson wrote:

quoted text
> Hey all,

>

> So the continuing saga is this: still no luck getting Pianoteq with JACK to

> equal or spank with superiority the performance of PianoTeq w/ALSA alone on

> my system.....

>

> I found the following information: the info from the /proc/asound output

> that Paul asked me to check out confirmed that at comparable settings, JACK

> choked where ALSA smoked. I had ALSA down to a period of 64 and 3

> periods/buffer (hardware bufsize of 192) at a sample rate of 48000. The same

> setting of jackd ('jackd -dalsa -dhw:0,0 -r48000 -p64 -n3 -S') didn't agree

> with Pianoteq....

>

> So...here's my dilemma. I have a live show coming up where I'd prefer to use

> the superior harpsichord sound of Pianoteq, but I don't want to risk a

> lock-up or xruns or worse in a live concert. So I would have to use

> ALSA...BUT....I also need to switch to playing a live kalimba through some

> Csound effects right after playing a harpsichord, and Pianoteq under ALSA

> will not stand for another app opening and sharing the soundcard like JACK

> will allow (ALSA will block I/O).

>

> So what can I do?

>

> Best,

> AKJ

Hello Aaron,
Might have missed something but what kind of soundcard are you using?

And why the -S option?
Best,
Jeremy

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