[mythtv-users] Problem getting stereo plus other audio problems (G400)...

[Mark Woodward]

Ok, first I'll apoligise in advance if this is a menu setting but I can't
get mythtv (CVS) to record in stereo. I've looked in (i think) all the menus
but I can't see any setting that might affect this. I noticed this because I
am also getting the odd show recorded without sound, which may or may not be
related.
Turning debugging on for the mjpeg drivers and in the kernel log I see the
following MSP34xx message with mythtv recording...

May 21 08:14:22 tubbs kernel: msp3400: setmode: 8
May 21 08:14:22 tubbs kernel: msp34xx: scart switch: in1 => 0
May 21 08:14:22 tubbs kernel: msp34xx: scart switch: in2 => 1
May 21 08:14:22 tubbs kernel: msp34xx: setvolume: mute=off 65535:65535
v=0x73 b=0x00
May 21 08:14:22 tubbs kernel: msp34xx: setvolume: mute=off 0:0  v=0x00
b=0x00
May 21 08:14:22 tubbs kernel: msp3400: carrier1 val:  -104 / 6.0   PAL I
May 21 08:14:23 tubbs kernel: msp3400: carrier1 val:    58 / 6.5   PAL D/K +
SAT + SECAM
May 21 08:14:23 tubbs kernel: msp3400: setmode: 3
May 21 08:14:23 tubbs kernel: msp: setstereo
May 21 08:14:23 tubbs kernel: msp3400: FM setstereo: 1
May 21 08:14:23 tubbs kernel: msp34xx: setvolume: mute=off 65535:65535
v=0x73 b=0x00
May 21 08:14:23 tubbs kernel: msp3400: mono sound carrier: 4.501 MHz
May 21 08:14:23 tubbs kernel: msp34xx: scart switch: in1 => 0
May 21 08:14:23 tubbs kernel: msp34xx: scart switch: in1 da => 1

when I use xawtv which works for stereo I see...

May 20 08:50:10 tubbs kernel: msp3400: setmode: 3
May 20 08:50:10 tubbs kernel: msp: setstereo
May 20 08:50:10 tubbs kernel: msp3400: FM setstereo: 1
May 20 08:50:10 tubbs kernel: msp34xx: setvolume: mute=off 65535:65535
v=0x73 b=0x00
May 20 08:50:10 tubbs kernel: msp3400: mono sound carrier: 4.501 MHz
May 20 08:51:25 tubbs kernel: msp34xx: stereo detect register: -19
May 20 08:51:25 tubbs kernel: msp34xx: setvolume: mute=off 0:0  v=0x00
b=0x00
May 20 08:51:25 tubbs kernel: msp3400: setmode: 8
May 20 08:51:25 tubbs kernel: msp34xx: scart switch: in1 => 0
May 20 08:51:25 tubbs kernel: msp34xx: scart switch: in2 => 1
May 20 08:51:25 tubbs kernel: msp34xx: setvolume: mute=off 65535:65535
v=0x73 b=0x00
May 20 08:51:25 tubbs kernel: msp34xx: setvolume: mute=off 0:0  v=0x00
b=0x00

The startup process is almost the same except it looks like when xawtv
starts the msp34xx driver detects a stereo signal and causes it to switch
modes. However this does'nt happen on the mythtv recording.
Any ideas, pointers. RTFM?

Thanks,
Mark

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