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Thread: Mplayer: awful, scratchy sound

  1. #1
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    Mplayer: awful, scratchy sound

    Hi all

    I've installed mplayer and its plugins on Fedora Core 5 and when I try to play mp3 audio through it the sound is awful. XMMS works fine and the sound is perfect. What am I doing wrong? How can I track the problem?

    many thanks
    James

  2. #2
    hello,
    have you played with the mixer settings? also check the audio output options - right click -> preferences -> audio tab
    telnet mtrek.game-host.org 1701

  3. #3
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    Question

    PB

    I have fiddled around with both a bit though I must admit I don't have a clue what I'm doing.

    Perhaps I should uninstall and try to re-install. I haven't tried it playing video yet either, perhaps I should do that and see what the audio is like there.

    As I said, XMMS works brilliantly so would that mean the mixer settings are ok?

    thanks again
    James

  4. #4
    hello,
    do you see this screen? [img]http://home.comcast.net/~pbharris/files/mplayer_audio_opt.png[/img]
    If so select oss and then configure driver by making sure /dev/dsp and /dev/mixer are selected - is that does not help try using /dev/dsp1 and /dev/mixer1 under the configure options.

    - xmms is most likely using ALSA (good) where mplayer is set up for something else...
    telnet mtrek.game-host.org 1701

  5. #5
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    Thanks for the suggestion, PB. I'll give it a go tonight and let you know.

  6. #6
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    PB.

    I tried your suggestions but it doesn't seem to help. In fact, I tried the command line player so I could force mplayer to use alsa:

    mplayer -ao alsa

    and it was still scratchy. Incidentally, here's the output of the command line player, in case this provides any clues...
    ================================================== ========================
    Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
    AUDIO: 44100 Hz, 2 ch, s16le, 320.0 kbit/22.68% (ratio: 40000->176400)
    Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
    ================================================== ========================
    alsa-init: using device default
    alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
    AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
    Video: no video
    Starting playback...
    A: 8.6 (08.6) of 216.0 (03:36.0) 1.8%


    ==================

    Does that mean anything to you?

  7. #7
    hello,
    sorry for the long reply time - my PC was messed up

    anywho - your line looks exactly like it should. i suppose you have tried mplayer -ao oss ? since you are using fedora 5 you are probably also using gnome - you may wish to mess with the mixer settings for gnome.
    telnet mtrek.game-host.org 1701

  8. #8
    Advisor beezlebubsbum's Avatar
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    I used to have problems with scratchy audio. I fixed it by slightly lowering the PCM mixer on KMIX. For some reason, when on full, I would get a heap of static. Any help?
    My Website: http://ttgale.com
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