[FFmpeg-user] Audio not playing in Quicktime Player

[Gyan Doshi]

On 1/3/2018 10:49 PM, Erik Dobberkau wrote:
> 
> Regardless whether it is or not, there is some spec in QuickTime Player
> which requires .mp4 containers to have h.264 (and obviously now also h.265)
> video, and aac audio. OTOH I can't remember where I got this from, it's
> quite some years back...

As per the ref below, audio in MP4 can only be AAC.

https://developer.apple.com/library/content/documentation/MusicAudio/Conceptual/CoreAudioOverview/SupportedAudioFormatsMacOSX/SupportedAudioFormatsMacOSX.html


Regards,
Gyan