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I live in a PAL B/G country, so we have audio carrier at 5.5MHz offset.
Very occasionally, despite having "audio_carrier=5500" as module option,
it chooses some other value for the audio carrier (I've removed the extra
stuff from syslog on the begining of the lines):
saa7134[0]/audio: tvaudio thread scan start [26]
saa7134[0]/audio: ctl_mute=0 automute=1 input=Television =>
mute=1 input=Television
saa7134[0]/audio: tvaudio thread scan start [27]
saa7134[0]/audio: scanning 5.500 MHz => dc is 48 [1085/1037]
saa7134[0]/audio: scanning 6.000 MHz => dc is 7134 [13/7147]
saa7134[0]/audio: scanning 6.500 MHz => dc is 1108 [4/-1104]
saa7134[0]/audio: found PAL main sound carrier @ 6.000 MHz [7134/1108]
Why does the insmod option not force 5.5MHz and circumvent the scan? The
end result is my little PVR box randomly records static instead of the
channel's audio :(
Second issue, although the driver reports NICAM with stereo available,
neither the jack on the back nor recording over OSS ever produces
stereo. I also suspect it's only providing the FM audio, as it has
"white-image" static noise on it from time to time, which I've never
gotten with my other NICAM-capable devices.
saa7134[0]/audio: tvaudio thread scan start [30]
saa7134[0]/audio: ctl_mute=0 automute=1 input=Television =>
mute=1 input=Television
saa7134[0]/audio: tvaudio thread scan start [31]
saa7134[0]/audio: scanning 5.500 MHz => dc is 23301 [-11289/12012]
saa7134[0]/audio: scanning 6.000 MHz => dc is 6019 [378/6397]
saa7134[0]/audio: scanning 6.500 MHz => dc is 189 [265/454]
saa7134[0]/audio: found PAL main sound carrier @ 5.500 MHz [23301/6019]
saa7134[0]/audio: ctl_mute=0 automute=0 input=Television =>
mute=0 input=Television
saa7134[0]/audio: tvaudio_setmode: trying PAL-B/G FM-stereo [5.500/5.742 MHz]
saa7134[0]/audio: tvaudio_setmode: trying PAL-B/G NICAM [5.500/5.850 MHz]
saa7134[0]/audio: found audio subchannels: mono stereo
saa7134[0]/audio: tvaudio_setmode: using PAL-B/G NICAM [5.500/5.850 MHz]
saa7134[0]/audio: found audio subchannels: mono stereo
In case it helps, full output on loading the saa7134 module, card is
FlyVideo Prime 34FM (aka, FlyVideo 3000):
Linux video capture interface: v1.00
saa7130/34: v4l2 driver version 0.2.9 loaded
saa7134[0]: found at 01:06.0, rev: 1, irq: 3, latency: 32, mmio: 0xee000000
saa7134[0]: subsystem: 5168:0138, board: LifeView FlyVIDEO3000
[card=2,insmod option]
saa7134[0]: board init: gpio is 39000
saa7134[0]: registered input device for IR
i2c-dev.o: Registered 'saa7134[0]' as minor 0
i2c-core.o: adapter saa7134[0] registered as adapter 0.
saa7134[0]: i2c eeprom 00: 68 51 38 01 10 28 ff ff ff ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc2
tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles))
i2c-core.o: client [Philips PAL_BG (FI1216 and comp] registered to adapter
[saa7134[0]](pos. 0).
saa7134[0]: registered device video0 [v4l2]
saa7134[0]: registered device vbi0
saa7134[0]: registered device radio0
saa7134[0]: registered device dsp1
saa7134[0]: registered device mixer1
Driver snapshot is 20031016.
Thanks :)
- --
David Zanetti | (__)
#include <geek/unix.h> | ( oo Mooooooo
http://hairy.geek.nz/ | /(_O ./
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