| Well I don't think anything can beat this. Linux continues
to
be the best platform for audio. I have to try this kernel in
our Linux machines here (when I get some time... :( ).
Iain, you have to try to make it for the next Linux Audio
Conference in Karlsruhe and show these things to the
community!
Victor
>
>
> > Latency on Windows is very small with ASIO. I have been
> > running with cs buffers of 200 samples and
> > 'very low latency' ASIO settings, which here mean
> > something like 32 or 64 samples. Audio processing
> > works like a treat, almost like dedicated hardware.
> >
> > Victor
>
> That is definitely an improvement over windows last time I
> used it. However, using the Ingo Molnar low latency
> kernel patch on 2.6.12, I am able to run simple csound
> orchestras with sr=48000 ksmps=1 in real time at buffer
> settings of -b1 -B1 with no break up! ( Delta 66 card,
> alsa 0.9 or so )
>
> csound -+rtaudio=alsa -odac -m0 -d --expression-opt
> --sched -b1 -B0 monosynth5.orc monosynth5.sco
>
> "audio buffered in 1 sample-frame blocks
> writing 4-byte blks of shorts to dac"
>
> I have not done a recent shoot out because I don't have
> a windows install on this machine anymore, but when I did
> a comparison a long time ago, the improvement was
> dramatic in terms of latency, ability to use other gui
> apps at the same time ( using --sched ) and even cpu use
> for the same orchestra. Of course this is a very simple
> orchestra ( 8 vco's plus 2 moogvcf's, hits 25% cpu at
> ksmps=1 ), but it would be interesting to have the
> comparison for windows too. I am on an AMD 3000+ if anyone
> wants to try to see what the lowest -b -B's they can get
> are. Attached are the files.
>
> Iain
>
>
>
> [Attachment: monosynth5.orc]
> [Attachment: monosynth5.sco] |