[FFmpeg-user] auto sync 2 audio waveforms

Dave Rice dave at dericed.com
Tue Feb 12 19:34:33 CET 2013

Hi Charles,

On Feb 12, 2013, at 1:12 PM, Charles Zivko wrote:

> Is it possible with any feature in ffmpeg given audio file A and audio file B to get a timestamp from each where their waveforms match in order to calculate the offset to get them to align and sync.  Currently I have two files and they are off by about 1 - 2 seconds but need to calculate this automatically.
> Or if anyone is aware of any other library that may help me achieve this either programmatically or via CLI that would be great.

I remember hearing development of a utility called PCMAlign but I'm uncertain if it was ever released.
Dave Rice

More information about the ffmpeg-user mailing list