Re: [LAU] xruns with m-audio fast track pro on fedora 8 ccrma -> kernel 2.6.22 , periods/buffer = 3 , disable system bips and esd, and proper rtirq setup

From: Florent Berthaut <hitmuri@email-addr-hidden-log.org>
Date: Wed Jan 23 2008 - 17:44:25 EET

Florent Berthaut a écrit :
> Florent Berthaut a écrit :
>> Hartmut Noack a écrit :
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Florent Berthaut schrieb:
>>>
>>>> Fernando Lopez-Lezcano a écrit :
>>>>
>>>>> A more basic question... what parameters are you using when you start
>>>>> jackd?
>>>>>
>>>>> -- Fernando
>>>>>
>>>>>
>>>> .jackdrc:
>>>>
>>>> /usr/bin/jackd -R -P70 -t1000 -u -dalsa -r44100 -p64 -n2 -D -Chw:0,1
>>>> -Phw:0,0 -S -i2 -o2
>>>>
>>>>
>>>
>>> USB-Devices often perform much better with -n3. Furthermore I would try
>>> to eliminate any flag, that is not absolutely needed such as:
>>>
>>> /usr/bin/jackd -R -dhw:1 -dalsa -r44100 -p64 -n3
>>>
>>> BTW: this would compute to around 4 ms latency - is that good enough for
>>> you?
>>>
>>>
>>
>> Okay, i had forgot to turn off the system "bips" and esd (it reduced
>> the number of xruns)
>> And yep with -n3 i 've got even less xruns and it seems they're not
>> audible.
>> I don't know if the latency is low enough though, i'll test this
>> evening with my drum pads.
>>
>> Thanks everyone , it's really great to get so much help so quickly.
>>
>> Flo
>>
>>
>
> Argh, actually i still have audible xruns. And i don't think i'd be
> able to play correctly with a higher latency anyway...
> Think i'll have to get back to ubuntu studio ... :(
>
> Flo
>
>
>>
>>> -----BEGIN PGP SIGNATURE-----
>>> Version: GnuPG v1.4.6 (GNU/Linux)
>>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
>>>
>>> iD8DBQFHlyDW1Aecwva1SWMRArDTAJ9dIPRT9WjP7qdq7hZ8RWyAsAY6egCeJ0cU
>>> sHsAIr0IN2I9/PbfOzZuT/o=
>>> =bAjH
>>> -----END PGP SIGNATURE-----
>>>
>>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Linux-audio-user mailing list
>> Linux-audio-user@email-addr-hidden
>> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
>>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user@email-addr-hidden
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
>

Actually after a reboot and some more tweakings, things have been
running without a xrun for an hour now, even with periods/buffer=2.

So finally, i'll stay with planet ccrma ;)

Flo

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
Received on Wed Jan 23 20:15:17 2008

This archive was generated by hypermail 2.1.8 : Wed Jan 23 2008 - 20:15:18 EET