- Extension
- .qcp
- .m4r
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Qualcomm
- Apple Inc.
- Description
- QCP (PureVoice Audio File) is a file format used for storing audio data in a compressed format. It was originally developed by Qualcomm for use in their CDMA phones and is optimized for low-bandwidth transmission. It is used primarily for voice recordings, such as voicemails and other audio messages.
- M4R is an iTunes ringtone file that stores mono channel audio. They are identical to the M4A format files only that they are correctly used for ringtones.
- MIME Type
- audio/qcelp
- audio/x-m4r
