[haiku-bugs] Re: [Haiku] #7284: auich.settings not installed
- From: "Pete" <trac@xxxxxxxxxxxx>
- Date: Fri, 15 Jul 2011 01:42:05 -0000
#7284: auich.settings not installed
-----------------------------------+----------------------------
Reporter: Pete | Owner: korli
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Audio/auich | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by Pete):
Replying to [comment:9 ttcoder]:
> Here goes for me:[[BR]]
Thanks for doing the check.
> Results:[[BR]]
> - no override: no sound at bootup (and oddly it ''still'' did not arrive
even 15+ minutes later, and launching an mp3 in MediaPlayer results just
in its progress bar "jumping" to close to the end)
> - "buffer_frames 128" -> audio ok immediately; gets chopped off a fair
bit if I "shake" around a W+ window.
> - "buffer_frames 256" -> audio ok immediately; gets chopped off a bit
on W+ test
> - [I will continue increasing buffer size later on as time permits and
edit this comment accordingly]
Seems to mirror my observations pretty closely. (Though I've never
noticed that progress bar jump -- it seems to move normally, even though
no sound comes out.)
This all leads to a couple of relevant questions:
- Why was the "no sound" effect not noticed when the change was first
made? Has something changed further back in the chain -- multiaudio
perhaps? FWIW I have the same situation on an old Thinkpad that needs OSS
for audio; OSS also has a very large buffer by default, and a giant
latency. I haven't had a chance to play with modifying OSS yet.
- It appears as if these problems don't happen with other audio drivers.
I assume they'd have been reported if they did. The latency glitches
(#7285) seem to happen anywhere in the chain -- they aren't obviously
associated with the driver. And, as noted, they seem to be generated
largely by window movements. So how are these affecting the driver?
(Looks as if interrupts are getting turned off for ~8msec.)
>
> I'll stay with Auich a couple more days before plugging the SB-live back
in.
When you do, could you please report what Cortex shows as the latency for,
say, MediaPlayer?
I get ~170 msec with the default 4096 buffer size. (With 256-frame
buffers, it becomes 17-20 msec... until the latency glitches hit!)
For reference, my box is a Pentium 4 @ 2.79GHz. listdev shows:
{{{
device Multimedia controller (Multimedia audio controller) [4|1|0]
vendor 8086: Intel Corporation
device 24d5: 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller
}}}
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Ticket URL: <http://dev.haiku-os.org/ticket/7284#comment:10>
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