Re: [iiwusynth-devel] Latency measurement results

[jgreen]

Quoting "M. Nentwig" <address@hidden>:

<cut>

>
> It is obvious, that using 16 fragments without additional 'tricks'
> results in quite sloppy timing. But I have a feeling, that the
> performance with a proper '3-fragment-capable' sound card can compete
> with any commercial product. For example, in the keyboard review of
> Native instrument's latest B4 softsynth, 'Keyboards' magazine wrote,
> that the latency is 'tolerable'.
> Now concerning iiwusynth, 8 +/- 2 ms is better than 'tolerable', if you
> ask me :-)
> 

Howdy. I also had trouble with the default fragment count/size settings with my 
YMF744B that I have on my laptop, thats why I added the options to specify them 
to the iiwusynth shell as well as made the ALSA code "auto detection" better. I 
can get 3 fragments of 236 sample buffers (3 fragments * 236 frames = 708 
frames, 708/44100 ~ 16 ms, haven't measured it as directly as you have 
though :). I'm using ALSA 0.9.0beta10. I don't recall if you mentioned what 
drivers you are using. If you aren't using ALSA you probably should be :) 
Cheers!
    Josh Green
    Smurf Sound Font Editor (http://smurf.sourceforge.net)