[linux-audio-dev] BruteFIR + jack = crackling noise?

[Steve Harris]

On Mon, Feb 24, 2003 at 07:49:43 +0100, Martijn Sipkema wrote:
> > > [...]
> > > > > Perhaps you would reconsider having JACK use constant (frames)
> > > > > callbacks?
> > > >
> > > > I think a better solution might be to buffer up enough samples so that
> > > > jackd can provide a constant number of frames.
> > >
> > > I don't think that is a better solution. JACK should be close to the
> > > hardware and deliver what the hardware is capable of. If a client needs
> > > constant (frames) period, it can do the buffering itself.
> >
> > Not without making the cpu load unpredictable.
> 
> Is that so? And why is it that JACK can and a client cannot?

Because the client can segment correctly give power-of-two buffers.
 
> > I think its a bad idea to life hard for (some) clients because of a few
> > bad hardware designs.
> 
> Hardly a few. And not even necessarily bad.

It is a slightly crazy design. Just doesn't fit well with the way PCs work.

- Steve