Subject: Re: [linux-audio-dev] Re: jack, low latency and IO
From: Jens M Andreasen (jens.andreasen_AT_chello.se)
Date: Wed Dec 08 2004 - 00:05:35 EET
On tis, 2004-12-07 at 22:32 +0000, vanDongen/Gilcher wrote:
...
...
> 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
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