Free online QCP to WAV converter

Source format overview

QCP is a Qualcomm PureVoice audio format, commonly used on older mobile phones and in some telecom systems for voice recordings and ringtones. It is designed mainly for speech, so it often uses narrowband, low-bitrate compression rather than high-fidelity audio. QCP files are typically encountered when extracting voicemail, call recordings, or legacy phone audio.

Target format overview

WAV is a widely supported uncompressed audio container, usually storing PCM audio. Its main advantages are broad compatibility, easy editing, and reliable playback in nearly all audio software and operating systems. WAV is commonly used for archiving, editing, transcription workflows, and interchange between applications.

How to perform the conversion

The most reliable way to convert QCP to WAV is to use software that can decode Qualcomm PureVoice audio. If your QCP file is supported, you can convert it locally with desktop tools such as FFmpeg or an audio editor that can open the file directly.

1. Check whether your QCP file opens in your chosen tool. If it does not, the file may be a variant that requires a specialized decoder.
2. With FFmpeg, run a command such as ffmpeg -i input.qcp output.wav.
3. If you prefer a graphical editor, open the file in a compatible program and choose File → Save As or File → Export, then select WAV as the output format.
4. Verify the resulting WAV file by playing it in a standard media player or opening it in an audio editor.

You can also convert the file on 101convert.com for free, without installing any software.

Quality and compatibility notes

QCP is usually speech-oriented and lossy, so converting it to WAV does not restore lost audio detail; it only changes the container/format to a more compatible one. The resulting WAV file may be larger than the original because WAV is often uncompressed. Some QCP files contain embedded metadata or use slightly different codec variants, which can affect compatibility with converters. If a file fails to open, try another decoder or verify that the file is truly QCP and not a similarly named format.