| Extension | .qcp |
| Category | audio |
| Description | A file with the .QCP extension is an audio file that is saved in the Qualcomm PureVoice format. This format was developed by Qualcomm and is commonly used for voice notes or mobile phone ringtones.
QCP is focused on maximum voice clarity at low bitrates, making it ideal for voice recordings. Often used in mobile phones for ringtones and voice notes.
This format helps manage voice bandwidth usage efficiently while maintaining acceptable audio quality. |
| Technical details | The QCP (Qualcomm PureVoice File) file format is used to encode audio data, especially voice. Here are some technical details of this format:
Codecs: QCP supports EVRC (Enhanced Variable Rate Codec) and QCELP (Qualcomm Code Excited Linear Prediction) codecs. EVRC is designed to optimize voice quality at low bitrates, while QCELP provides higher audio quality at moderate bitrates.
Bitrate: QCP files provide a variable bitrate that adapts to the quality of the communication link, allowing you to optimize the use of network bandwidth.
Container Format: QCP files can contain metadata and multirate data, allowing bitrate information and other encoding parameters to be stored.
This format is often used in mobile phones for storing and transmitting voice recordings, as well as for ringtones.
Playing QCP files is possible on many mobile devices and some computer player programs that support the appropriate codecs.
The details of the QCP format are described in RFC 3625, which is a standard that describes the file format and MIME types for speech data. |
