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Old 13th December 2020, 21:23   #1  |  Link
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Join Date: May 2003
Posts: 98
No *.mp4 video with MP3 sound playable on iPhones?

I sent a *.mp4 video to buddies.

Much to my surprise some of them can play the video but hear no sound.
I turns out that exactly these guys use an iphone.
Android users do not have a problem with sound.

So can it be that MP3 codec is not working on iPhones?

Which audio codec should I use instead which works on both: Android and iPhones?
I could re-encode the video.
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Old 14th December 2020, 05:56   #2  |  Link
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Location: San Jose, California
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AAC for iOS
madVR options explained
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Old 14th December 2020, 21:19   #3  |  Link
ангел смерти
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Join Date: Nov 2004
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Posts: 9,564
AAC is the only truly universal format, since iOS dropped mp3 audio in video files. (It obviously still works for the music & audiobook library.) You don't need to re-encode the video, just the audio, and remux.

Opus might work now, since they support it both as .opus and .mp4 in the music library since iOS 11. I haven't tested though.
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Old 25th December 2020, 13:17   #4  |  Link
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The format must be different.
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