I don't know if this is a glitch or something that I am just completely overlooking. I have a fairly complex project with lots of pre-comps within pre-comps. The footage is MTS files. I just opened this project up after sitting idle for 2 months, only to find that I cannot get any audio to play when I do a ram preview.
Two months ago it played fine and I'm sure the waveform showed up fine as well- though I rarely look at it so I can't confirm the visual of it.
Am I just missing something? My other projects are playing fine...
The files may have multiplexed, or muxed, audio: the audio's embedded in the video track. You could hear it in a player, but AE wouldn't be able to play it or even see the tracks: it needs a separate audio track.
The fix: use a different application to export a wave or aiff file of the audio, and use it in AE.