[FFmpeg-user] auto sync 2 audio waveforms

Charles Zivko charleszivko at gmail.com
Tue Feb 12 20:10:29 CET 2013


Thanks Dave!  
Googling around for PCMAlign has not returned any fruitful results so far.

Charles.


On Feb 12, 2013, at 10:34 AM, Dave Rice <dave at dericed.com> wrote:

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
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