Level Lift

Normalise the audio in iPhone videos, preview the result, and save a fresh copy to Photos without sending your media anywhere.

Level Lift is a simple way to fix quiet audio in iPhone videos.

Level Lift simply normalises the audio in videos. Normalisation involves finding the loudest part of an audio file, and raises the level of the file until that loudest point is at the maximum, or 'ceiling'.

To use: Choose a video from Photos, let Level Lift measure the audio already inside it, then export a new copy with a clearer, stronger level. It works well for videos where the sound is good but it is just too quiet compared with other clips — a common thing for recording with the iPhone mic, or with an interface like an iRig.

Level Lift keeps the original video untouched. It creates a separate processed movie, lets you compare the original and normalised versions, and only saves the new copy to Photos when you choose to.