mencoder at perlmeister.com wrote: > How can I configure the bitrate/sample size of a PCM audio I want to add > to a video? Mencoder seems to default to > > AUDIO: 8000 Hz, 1 ch, s16le, 128.0 kbit > > and for the life of me, I can't figure out how to get it to use > > AUDIO: 8000 Hz, 1 ch, u8, 64.0 kbit > > instead. Okay, here's what I've done so far: I have an audio file, > sound.wav, which has the correct bitrate: > > $ mplayer sound.wav > ... > AUDIO: 8000 Hz, 1 ch, u8, 64.0 kbit/100.00% > ... > > And a have a video with no sound, nosound.avi: > > $ mplayer nosound.avi > ... > AVI: No audio stream found -> no sound. > ... > > Now, let's use mencoder to add the audio to the video: > > $ mencoder nosound.avi -oac pcm -ovc copy \ > -audiofile sound.wav -o withsound.avi > ... > Audio stream: 128.000 kbit/s (16000 B/s) > ... > > See? Mencoder used 128kbits, although the audio file has 64kbits. And > the resulting .avi has 128kbits as well: It's not really clear to me why mencoder is converting the audio to s16le for '-oac pcm', but you can avoid that by just using '-oac copy' instead. -Corey
