Re: [gentoo-user] Re: audio with TV crd [solved]

[Nick Rout <nick@rout.co.nz>]

On Tue, 25 Jul 2006 11:11:50 +0100
Uwe Thiem wrote:

> On 25 July 2006 01:37, Nick Rout wrote:
> 
> Audio is now working with PVR-150. Thanks, Nick, for all your input.
> 
> Problem is, I don't know why and I hate it when magic is part of IT. ;-)
> 
> The whole difference between yesterday and today is that I tried to compile 
> the new kernel 2.6.17-gentoo-r4 (as compared to r3). That compilation failed. 
> Since I hadn't time to investigate, I just left it like that. Nothing 
> installed, no reboot, noting. All of a sudden audio is coming out of that 
> bugger at a decent volume. :-(
> 
> Audio quality is still poor, high noise level and it doesn't sound like 50Hz 
> noise. So maybe, it's that VCR - have to check that by plugging the VCR 
> directly into a TV.
> 
> Anyway, forward to the next step of creating a video DVD from that MPEG2 
> stream!
> 
> Uwe

There is a current "scratchy" noise problem with PVR-150 drivers.

AFTER you have started playing/recording the stream execute 

ivtvctl -qX 

where X is the audio input you are using. This fixes it for me and a
number of other mythtv users. Some have even set up a cron script to
execute that command every 10 seconds.

To get as close as possible to a DVD compatible stream use 

ivtvctl -c stream_type=X where X is the stream type you want from :

/* Stream types */
#define IVTV_STREAM_PS          0
#define IVTV_STREAM_TS          1
#define IVTV_STREAM_MPEG1       2
#define IVTV_STREAM_PES_AV      3
#define IVTV_STREAM_PES_V       5
#define IVTV_STREAM_PES_A       7
#define IVTV_STREAM_DVD         10
#define IVTV_STREAM_VCD         11
#define IVTV_STREAM_SVCD        12
#define IVTV_STREAM_DVD_S1      13
#define IVTV_STREAM_DVD_S2      14

I cannot for the life of me remember whether you want 10,13 or 14.



-- 
Nick Rout <nick@rout.co.nz>

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