M4A

MPEG-4 Audio (AAC)

Lolly opens and makes this format

An audio-only MP4 file, usually holding AAC-encoded sound, the format Apple devices and many browsers record natively. It sounds a little better than MP3 at the same size. Lolly's Voice Recorder can save your take as M4A, and imported M4A audio can drive a video's music bed. As an MP4-family file it carries a Content Credential over the same binding as MP4 - so a synthetic or AI-voiced clip stays attributable.

Most tools like this are upload sites: your file goes to their server, and ads pay the bill. Lolly runs on your device, so your file stays with you.

• Runs on your device
• Free, no account