What is a raw PCM file?
It is a sequence of uncompressed audio samples with no container header. A player or program must be told the sample format, sample rate, and channel count.
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All processing happens in your browser. Files are never uploaded to any server.
Decode MP3 files into headerless raw PCM audio directly in your browser.
Raw PCM stores uncompressed samples without a WAV header. Choose the sample rate, mono or stereo channels, and an integer or floating-point sample format that matches the software, device, speech pipeline, or SDK that will read the output.
PCM files are much larger than MP3 because they are uncompressed. Converting an MP3 to PCM does not restore detail already removed by MP3 encoding; it only changes how the decoded samples are stored.
Typical use cases:
Related tools:
PCM output has no embedded header, so the downloaded filename includes the selected sample format, sample rate, and channel count. Match these settings when you open the file elsewhere.
It is a sequence of uncompressed audio samples with no container header. A player or program must be told the sample format, sample rate, and channel count.
Use the exact settings required by the destination. A common speech format is signed 16-bit little-endian, 16000 Hz, mono; professional audio often uses 44100 or 48000 Hz and stereo.
MP3 uses lossy compression. PCM stores every decoded sample directly, so its size is determined by duration, sample rate, channels, and bytes per sample.
No. Decoding avoids another lossy encoding step, but it cannot recover audio information removed when the MP3 was created.
Import it as raw audio and enter the same sample format, rate, and channels shown in the filename. You can also choose WAV instead when you need a self-describing file.
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