[mythtv-users] PVR250 No Sound in random recordings

Doug Scoular dscoular at cisco.com
Tue Mar 16 19:32:43 EST 2004

Hi All,
    I've also been plagued with the loss of sound in seemingly
    random recordings and occasionally when switching
    channels on live-tv.
    Robert Kulagowski wrote:

 > I've got the following:
 >  options msp3400 once=1 simple=1 standard=0x20

    Since I'm in Australia I'm not sure what standard I should
    be using. From the ivtv wiki FAQ:

 > Q: Why is my PVR-250 capturing video but no sound?
 > A: In addition to trying the other suggestions in the FAQ, the 
following might help:
 > in /etc/modules.conf add or edit this line:
 > options msp3400 once=1 simple=1 standard=XX
 > or on the command line, type:
 > insmod msp3400 once=1 simple=1 standard=XX
 > where XX is one of:
 > 0x01 Auto-Sense(Default)
 > 0x02 Korea
 > 0x03 Germany
 > 0x04 Slovak. Rep.
 > 0x06 China, Hungary
 > 0x07 Poland
 > 0x08 Scandinavia, Spain
 > 0x09 France
 > 0x0a UK, Hong Kong
 > 0x0b China, Hungary
 > 0x0c China, Hungary
 > 0x0d China, Hungary
 > 0x20 USA, Argentina
 > 0x21 USA, Argentina
 > 0x30 Japan
 > 0x50 Europe Sat. ASTRA
 > 0x51 Europe Sat. ASTRA
 > 0x60 Europe Sat. ASTRA

    I'm not sure what I should be using. I think Australia
    broadcasts PAL-B same as the UK. I know I could
    just use trial and error but wondered if someone on
    the list had a definitive explanation. Do these values
    relate to some other more audio specific set of
    standards ?

    In the interim I've just been using the following cron
    entry which, while quite disgusting, means I only ever
    lose a maximum of 60 seconds audio.

* * * * * /root/fixit.sh

    The fixit.sh script contains the following:

more /root/fixit.sh
/usr/local/bin/test_ioctl -v input=7,output=1 > /dev/null 2>&1

    Where input and output should be changed to match your

    Again, if anyone has a clear explanation of the msp3400
    "standard" parameter... that would be great!


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