On 2001.09.16 21:49 Paul Davis wrote:
> its the interval between interrupts from the hardware. this defines
> the input latency, since the CPU will not have any idea that there is
> data waiting until the audio interface interrupts it.
>
> the audio interface has a "pointer" that marks the current position
> for read/write in its h/w buffer. the pointer circles around the
> buffer as long as the interface is running.
>
> typically, there are an integral number of periods per traversal of
> the h/w buffer, but not always. there is at least one card that
> generates interrupts at a fixed rate indepedent of the buffer size
> (which can changed), resulting in some "odd" effects by comparison
> with more traditional designs.
>
> note: h/w generally defines the interrupt in frames, though not
> always.
>
Ok, I think I understand most of it, certainly that my application can do
without it (and I tried and it works without). But what is a possible use
of this kind of settings? Is it only of interest to low-latency
applications?
Remco Poelstra
_______________________________________________
Alsa-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-devel
