[LAU] Super performance incl. low latency with zita-a2j

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To: <linux-audio-user@...>
Date: Tuesday, April 15, 2014 - 3:28 am

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I read about zita-ajbridge:

http://kokkinizita.linuxaudio.org/linuxaudio/zita-ajbridge-doc/quickguid...

Set Jack to use its dummy driver, and then (in background) run zita-a2j for output and/or zita-j2a for input, and then ignore the 'system' input and output ports and use the Zita ports. I went from 5.33ms to 1.33ms latency, and from occasional xruns to zero, and even with that my jackd usage percent is cut in half! Shocking. And that's three Yoshimis simultaneously. :-) I am tempted to giggle, but I am happier than that!!!

The only partial catch was MIDI; without the ALSA driver for Jack, one does not have Jack MIDI :-) Unless, of course, one uses a2jmidid, so that's what I'm doing. With such a small Jack period, the extra period for a2jmidid is not an issue.

Just had to report, and congratulate, and thank, everyone involved!!!!!

Jonathan E. Brickman
Ponderworthy Music | jeb@ponderworthy.com | (785)233-9977 | http://ponderworthy.com

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=
I read about zita-ajbridge:http://kokkinizita.linuxaudio.org/linuxaudio/zita-ajbridge-doc/quickg=
uide.html  
Set Jack to use its dummy driver, and then (in background) run zita-a2j f=
or output and/or zita-j2a for input, and then ignore the 'system' input and=
output ports and use the Zita ports.  I went from 5.33ms to 1.33ms la=
tency, and from occasional xruns to zero, and even with that my jackd usage=
percent is cut in half!  Shocking.  And that's three Yoshimis si=
multaneously.  :-)  I am tempted to giggle, but I am happier than=
that!!!  The only partial catch was MIDI; without the ALSA dr=
iver for Jack, one does not have Jack MIDI :-)  Unless, of course, one=
uses a2jmidid, so that's what I'm doing.  With such a small Jack peri=
od, the extra period for a2jmidid is not an issue.Just had to report, and congratulate=
, and thank, everyone involved!!!!!Jonathan E. BrickmanPonderworthy Music | jeb@=
ponderworthy.com | (785)233-9977 | http://ponderworthy.com
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Messages in current thread:
[LAU] Super performance incl. low latency with zita-a2j, Jonathan E. Brickman, (Tue Apr 15, 3:28 am)
Re: [LAU] Super performance incl. low latency with zita-a2j, Fons Adriaensen, (Tue Apr 15, 11:09 am)
Re: [LAU] Super performance incl. low latency with zita-a2j, Jonathan E. Brickman, (Tue Apr 15, 12:51 pm)
Re: [LAU] Super performance incl. low latency with zita-a2j, Jonathan E. Brickman, (Tue Apr 15, 12:23 pm)
Re: [LAU] Super performance incl. low latency with zita-a2j, Fons Adriaensen, (Tue Apr 15, 12:28 pm)
Re: [LAU] Super performance incl. low latency with zita-a2j, Harry van Haaren, (Tue Apr 15, 12:26 pm)