#28 Audio

Marcus Goddard

Cinelerra seems to work fine except when I capture it
records the video but no audio. It doesn matter which
format I use. I can hear the audio well when it is
recording, but the recorded audio tracks are just flat
lines. I have looked at all the options I could think of.




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    Really cant tell you what the issue might be. Ive been
    tinkering with the same problem for the last 6 hours. I too
    have sound but cinelerra (or any other program for that sake)
    cant seem to register it. Meaning that the sound moves
    straight from my soundcard to the speakers. Here is a couple
    of suggestions though. Im using Slackware 9.1 and thus
    ALSA with OSS emulation. I assume were suposed to
    use /dev/dsp or /dev/audio. (Not quite sure which one).
    But as no other program can register the sound i belive that
    to be irrelevant. More important would be making sure that
    the kernel has a ALSA driver for the soundprocessor of the
    capture card. (Im using a BT878, that would be a pinnacle
    card) And Im not sure it has. Another issue might be with my
    soundcard driver (ac97) but as its working prefectly with
    everything else i have to assume that its fully operational.

    Regards Christoffer