Audio play back well on some devices, no other

A very strange thing that happens with an audio track that I'm editing for a video, with the help of hearing and the first. This is audio from a file video .h264/AAC. Everything seems fine on my machine, but when some people watch the video or listen to only the audio track, the sound becomes glitchy and barely audible. He plays for some people very well, not for others. I knew that there was a problem, because someone told me that what they meant to their end. I can't reproduce the problem on my computer.

This is where it gets strange: on mobile phones, it is almost always a problem. However, if you use a headset or speakers, the audio is great. Disconnect the headphones/speakers and the audio is glitchy again.

I've tried several things: editing and export Quicktime 7, Audacity, Audition, Final Cut Pro 7 and always with the same results. Any format/codec, compressed or not compressed: it's the same thing if it's an aif, wav, mp3.

Here is a sample of the video on Vimeo:

https://Vimeo.com/134962721

And just the audio on Soundcloud:

SonkaInterviewEdit by AgentGrifray | Free listen on SoundCloud

Has anyone ever come across anything like this? What could cause an audio file work on some devices and others not? Why a device would not be able to play a file via its internal speakers, but can, when it is connected to speakers/headphones?

Thanks for any help!

The problem is that the audio file that you have produced is essentially a mono file of double track. However, there is a reversal of phase on one track compared to the other. So it seems to read OK on a stereo system but the audio will almost completely cancel on a system that only plays back as mono.

Therefore restate your audio by reversing a track. Re-record and it should then probably play OK on everything.

Tags: Audition

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