Iphone 11 with External Mic Audio not Synching

[James25656138ktk4]

Hi,

Has anyone had issues with recording on an iPhone 11 with an external Rode lavalier mic, then importing to Premiere Pro to find the audio is out of synch by about 2 to 3 frames.

Viewing on the phone is correct yet on the timeline and in playouts the audio is slightly off.

Any idea what could be causing this?

[Richard van den Boogaard · Accepted solution]

The iPhone typically records with a variable framerate, unless you use an app like FilmicPro, which allows you to tell the camera to record in a specific fixed framerate. PPro does not work well with variable framerates. If you transcode the footage using an app like Handbrake (www.handbrake.fr) you can probably solve this issue.

Hope this helps.