Audacity Forum

Once upon a time, depending on what country, we shot at 24 fps or 25 fps. Our reel to reel Nagra (or other brand) recorded a sync pulse on the 1/4" tape. Life was simple. I fear there is a problem with the frame rate being recorded by the camera, and the frame rate recorded by the external ProRes 42...

If you shot something on a good quality video camera and a separate recorder and they didn't match later, then the probability is huge that the separate recorder's sample rate was off and the editing system is playing the track at the wrong speed. Footage recorded in the camera is fine; picture and...

Thanks everyone for your comments and replies. The audio and video went from a Canon 7d Mk II via HDMI to an external device (Atomos Ninja Star) recorder. This allows ProRes to be recorded. I used an external microphone into the camera. The audio drifts in under 4 minutes and lip sync is lost. I did...

I am using OS Sierra 10.12.6 I am looking for ways to correct sync sound audio drift in long video clips ( problem happens when shooting video and audio with DSLR's) without affecting pitch. Are there any features in Audacity that might help with making these corrections? I saw mention of Audacity i...