[PlanetCCRMA] help with new soundcard

[sevol]

On 5/28/09, Oded Ben-Tal <oded at ccrma.stanford.edu> wrote:
> Following good advice on this list I was able to get a new firewire card
> to work (Focusrite, Saffire LE). It works fins for playback with both snd
> and pd, but when I try to handle inputs as well as output I get clicks and
> drops.
> I'm using jack set to 2 inputs/6 outputs, frames/period 512, 4800 sample
> rate, 4 perios/buffer; and I'm connecting through a card
> with TI chipset (or so it claims). Anyone knows of a simple place to look
> for fixing this? (I tried reducing to 1 channel input and didn't notice
> any difference).
> It is possible that the problem is Pd, since it's the only app I used for
> inputs (I don't get any errors/warnings in jack). Is there a simple way of
> testing simultanous input+outputs that's quick to set (i.e. not ardour; I
> should learn ardour now that I have jack running, but I am desperately
> hoping to get this to work for a performance next week, so no time to
> figure out additional new complex things).
>
> thanks for your collective help so far,
>
> Oded
>

Forgive me if you've already done this (&I'm only guessing a bit.)
Perhaps counter-intuitive, but try reducing the periods to 3 & try
some other frame rates, like 256. Well, you can leave it at 512 first
if that works. Different period/frame settings can sometimes clear up
the clicks & dropouts (if I'm not all wrong :)

good luck,

sevol