Sometimes the video is beside the point — a recorded lecture, a band's practice session, a talk you want to relisten to on a run. Filemorph pulls the audio track out of an MP4 on your iPhone and saves it as its own M4A file.
Extracting audio from a video usually means opening a desktop editor just to throw the picture away. Filemorph does the extraction directly on your iPhone: pick the MP4, tap Extract Audio, and the audio track comes out as a standalone M4A file you can play, share or drop into a notes app.
When the video's audio track is already AAC — true for the overwhelming majority of MP4s, including anything recorded on an iPhone — Filemorph copies the compressed audio data straight into the M4A container instead of decoding and re-encoding it, so the extracted track matches the source exactly and the export finishes in seconds even for a long recording.
In the app: Extract Audio.
A video file carries picture data you may not need at all once you only care about the sound — it takes up more space, and most audio players and transcription tools want a plain audio file, not a video. Extracting the track once gives you a smaller file that opens in any audio app instead of a video player.
Yes. Unlike web converters that upload your files to a server, Filemorph converts every file locally using Apple's frameworks. Nothing leaves your device, and it works with no internet connection. This operation is part of Filemorph Pro ($29.99/year, 7-day free trial on monthly and annual plans).
M4A (AAC). That is the format Filemorph writes today for extracted audio and for its other audio conversions.
For most iPhone-recorded video, yes — the audio track is already AAC, so Filemorph copies it into the M4A container without re-encoding. If the source audio uses a different codec, Filemorph re-encodes it to AAC, which is a small lossy step.
No, Extract Audio is part of Filemorph Pro ($29.99 a year, 7-day free trial on monthly and annual plans).
On-device, no upload. Plus 300+ more file operations.
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