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Audio Troubleshooting from FCP to DVD
Hello. A friend suggested that I might be able to find an answer to a final cut/audio issue here.
My friend, a well versed editor, and I just finished up a short. Whenever he emailed me the updated cuts, I would always listen with headphones because I was usually at work and didn’t want to disturb others.
Well, the film was finally completed and he created a DVD for me. The weirdest thing has happened. There are several scenes in the film where the audio has disappeared completely for the entire scene. The score is there, but no audio. Please note I am watching on a standard tv set with no extra speakers. Is there any particular reason why the audio would be playing through headphones and not through the speakers? All the audio from the respective scenes is linked to one particular track (different of course from the ones that have audio through the speakers).
HOWEVER, if I put the DVD in my computer and watch it on Apple’s DVD Player (AND put it in my headphones), the audio is all there! So the audio plays through headphones, but disappears without.
Can anyone help us resolve this issue? Is it a Final Cut setting that is causing this? Exporting process from FC? Is it the original audio that is the problem?
Any suggestions would be VERY MUCH appreciated.
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4 Replies
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I’ll guess that the TV has only one channel of the audio feeding it’s audio input.
(As in the TV only has one audio input and you have only the right OR the left audio cable from the DVD player feeding the TV.)
If any audio is exclusively on the audio channel that is not connected to the TV, it won’t be heard.
This could also be happening if you have a bad or loose-fitting audio cable or plug.
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A shot in the dark here. I’ll take a guess.
Your offending scenes are supposed to be stereo-or at least dual channel mono- and they are 180 degrees out of phase with each other. If you listen through headphones, they will sound fine, but if you play it through your TV, the channels might be getting mixed for playback (through a single speaker?) and the audio in these particular scenes are canceling each other out. That would explain why the music is still there (stereo-in phase) and the scenes (stereo-out of phase) are not. How was the audio on the problem scenes recorded?
Check the phase of the offending scenes or delete one of the tracks from the pair and see how it sounds after that.
Tom. -
im with tom above. no audio in a mono summed output typically is a phase problem. which could easily be caused by a bad solder(sp? damn no spell check!) job by reversing the + and -…
del
you cant hear my inner voice scream… can you..?
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Tom,
Thank you so much for your input. We followed your directions and it worked–problem solved!
Thank god for this forum;)
Best,
Sandra
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