Qualcomm PureVoice

A speech codec engineered for CDMA networks, with fixed 8 kHz sample rate and two constant bitrates.

Pro Audio Converter can convert audio files to and from Qualcomm PureVoice via Core Audio.

Qualcomm PureVoice is based on the QCELP (Qualcomm Code Excited Linear Prediction) speech codec developed by Qualcomm for CDMA mobile networks, delivering constant-bitrate speech at 7 or 13 kbps. PureVoice data is typically identified by the .qcp file extension but is most often stored inside a 3GP/3G2 or CAF container.

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