Re: audio problem ...

From: Paul Eggleton <bluelightning_at_bluelightning.org>
Date: Tue, 30 Aug 2005 13:39:31 +1200 (NZST)

Hi Patrik,
> The main symptoms are clicks when opening & closing /dev/dsp. As I listen
> to e-books with opie-reader & flite I've those clicks after every sentence
> (there's a work around - but it's still anoying).

Yes I agree this is very annoying. There are other problems too - on the
h3800 the audio device does not always work after resume, either. But
that's a separate issue.

> Well - I decided to try to fix this, but I've to confess that I'll need
> some help/tips.
> As the bug was not present in 0.7.2 I thought with diff'ing some driver
> source files I should find the track - but I was wrong.
> Bugzilla #722 has the same symptoms - but I don't know if 39xx uses the
> same driver as the 38xx family.

It doesn't, they have different sound chips. I can't recall how it works
on h3800, but the h3900 uses a uda1380.

> What is "soft-start" - & where can it be configured (Google was not able
> to answer ...)?

Soft-start I believe means ramping the volume up and down rather than just
turning the output on/off. I imagine you'd have to do it quite quickly so
that it's not noticable. At this stage I don't believe the driver supports
this so you would have to modify it. I can't imagine why this is more of a
problem now than it was before, though.

Cheers,
Paul
Received on Mon Aug 29 2005 - 21:44:19 EDT

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