[FFmpeg-user] Unusable audio after conversion

[racer at gmx.ch]

Hi, I hope you're all well

 

I have a problem converting audio from PCM (s24be) stereo to AAC (or
anything youtube can use) in an mp4 container.

 

input.mp4

*	Is from a blackmagic hyperdeck studio mini
*	Plays flawlessly in VLC
*	When uploaded to youtube, only noise is audible

 

converted_by_vlc.mp4

*	Plays flawlessly in VLC
*	Plays flawlessly on Youtube
*	Not as handy to convert, as opposed to ffmpeg

 

converted_by_ffmpeg.mp4 [ffmpeg -i input.mp4 -c:v copy -c:a aac -b:a 384k
-ac 2 output.mp4]

*	Only noise in VLC
*	Only noise on Youtube

 

Judging from the ffmpeg readout, I don't see a difference with the audio
stream except for the bitrate.

 

Thank you for any help with this.

 

Best regards,

Urs

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