[linux-audio-dev] Re: jack, low latency and IO

[Jens M Andreasen]

On tis, 2004-12-07 at 22:32 +0000, vanDongen/Gilcher wrote:

...
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> Or you need to add timestamping on incoming events with respect to the 
> position of the audio-playback-pointer in the current period
> Then you delay them by the same amount in the next available process cycle.
> You increase response time but you decrease jitter. But then you need accurate 
> and quick-as-possible response for those incoming events and this is the 
> situation Paul mentioned, where it gets complicated.

This implies that either:

1) The driver timestamps when the interrupt happens (and that the
interrupt is not magically delayed.)

2) The "midi-thread" runs at higher priority than jack (so it can take
care of the event *excactly* when it happens, regardless ...)


No?


> Just so you know why it is complicated :)

OK :)


> G

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  c[]  // Jens M Andreasen