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Inaudible audio

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Mark WithersInaudible audio
by on Mar 15, 2014 at 6:53:16 am

Hi

I am truly stumped....

I have a 'depth bomb' sound effect that is perfectly audible on my MacPro via the external speakers. I'm using it on my Final Cut Pro timeline.

If I mix it into the project - to say export the whole project as an MP4 (for example) it is still audible.

HOWEVER, if I play that file on my MacBook Pro or on my television the 'depth bomb' sound effect disappears!

Here is the original file, and I have not initially changed any of the bit rate or sample or frequency settings (although it is not 44 or 48Hz:

http://www.freesound.org/people/ZeSoundResearchInc./sounds/147880/

Type - AIFF (.aiff)
Duration - 00:20:323
Filesize - 6.8 MB
Samplerate - 88200.0 Hz
Bitdepth - 16 bit
Channels - Stereo

Obviously after hours of attempting to get this sound to playback I HAVE tried changing the various options of sample/bit rate (primarily 48 Hz) and frequencies, plus swapped channels, raised/lowered the bass and volume and created different audio file types - AIFF, MP3, WAV - but no joy. whatsoever.

I've never come across anything like this and I approached a pro sound mixer who is also stumped. its seems the frequency is too low to be heard by all speakers, but I need to find a way to remedy that.

Any ideas? I'd be REALLY GRATEFUL, as this project should be delivered 18th March 2014.

Thank you in advance

Mark

http://bonobo-film.com


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