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.

大多數同類工具都是上傳型網站：你的檔案會上傳到他們的伺服器，廣告為此買單。Lolly 執行於你的裝置上，因此你的檔案始終留在你身邊。

• 在你的裝置上執行
• 免費，不用帳號