Re: [LAU] Audio Interface for live Processing

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To: James Stone <jamesmstone@...>
Cc: <linux-audio-user@...>
Date: Monday, January 28, 2013 - 10:27 pm

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Hi James/Len,

>Did you try 48k / 3 periods/buffer?

Just got it down to 4ms on the internal card!

often I'm processing a live and recorded input, which is mixed back with
the live performance, so latency is of some importance, but the numbers you
are both getting are very workable.

Thanks again for all the info.

/S

On 27 January 2013 23:26, James Stone wrote:

> On Sun, Jan 27, 2013 at 10:32 PM, Len Ovens wrote:

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Hi James/Len, >Did you try 48k / 3 periods/buff=
er?Just got it down to 4ms on the internal card!often I&#39=
;m processing a live and recorded input, which is mixed back with the live =
performance, so latency is of some importance, but the numbers you are both=
getting are very workable.
Thanks again for all the info./SOn 27 January 2013 23:26, =
James Stone <jamesmstone@gmail.com> wrote:
On S=
un, Jan 27, 2013 at 10:32 PM, Len Ovens <len@ovenwerks.net> wrote:

>

16bit/48k
live
s I
ls
ly
and
or
CPU

.. actually on the Scarlett 2i4, I can start jack with -p 16 -n=
2..
but it's not really usable on my ageing PC (Athlon 2500XP 1G RAM)..
lots of xruns.. It will run xrun free at 48k with -p32. push it up to
-p64, and it is pretty solidly stable at 96000 sample rate. Note 2.67
is round trip latency - from sound in to sound out. For midi control
of softsynths, it is half that.

With very short sample sizes, linuxsampler complains that the audio
fragment size is too small though! I think linuxsampler (at least the
version shipped with ubuntu) requires a period of 128 to run
correctly..

James

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Messages in current thread:
Re: [LAU] Audio Interface for live Processing, Saul Rayson, (Sat Jan 26, 9:07 am)
Re: [LAU] Audio Interface for live Processing, Len Ovens, (Sat Jan 26, 3:09 pm)
Re: [LAU] Audio Interface for live Processing, Saul Rayson, (Sun Jan 27, 4:05 pm)
Re: [LAU] Audio Interface for live Processing, James Stone, (Sun Jan 27, 8:20 pm)
Re: [LAU] Audio Interface for live Processing, Len Ovens, (Sun Jan 27, 10:33 pm)
Re: [LAU] Audio Interface for live Processing, James Stone, (Sun Jan 27, 11:26 pm)
Re: [LAU] Audio Interface for live Processing, Saul Rayson, (Mon Jan 28, 10:27 pm)
Re: [LAU] Audio Interface for live Processing, Len Ovens, (Sun Jan 27, 4:56 pm)
Re: [LAU] Audio Interface for live Processing, Joe Hartley, (Sun Jan 27, 5:06 pm)
Re: [LAU] Audio Interface for live Processing, Ralf Mardorf, (Sat Jan 26, 9:54 am)
Re: [LAU] Audio Interface for live Processing, Ralf Mardorf, (Sat Jan 26, 10:12 am)
Re: [LAU] Audio Interface for live Processing, Saul Rayson, (Sat Jan 26, 2:29 pm)
Re: [LAU] Audio Interface for live Processing, James Stone, (Sat Jan 26, 9:17 am)