- Extension
- .ima
- .m4a
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- IBM
- Apple
- Description
- A headerless file of IMA ADPCM audio data. IMA ADPCM claims 16-bit precision packed into only 4 bits, but in fact sounds no better than .vox.
- An M4A file is an audio file created in the MPEG-4 format, a multimedia container format used to store compressed audio and video data. It contains audio encoded with either the Advanced Audio Coding (AAC) codec or the Apple Lossless Audio Codec (ALAC).
- MIME Type
- audio/x-adpcm
- audio/mp4