Audio format

PCM Sample Files

PCM (.pcm) files contain raw, unformatted audio samples in Pulse Code Modulation. Used in embedded systems and DSP applications, they require external metadata (sample rate, bit depth). Use sample .pcm files to validate low-level audio processing, buffer alignment, and format conversion.

4 files All to 5MB SHA256 verified Manifest included
Quick facts
CategoryAudio
Total Files4
Extension.3MB.pcm
MIMEapplication/octet-stream
ManifestJSON
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Files first

Start with one representative file.

Starter file

pcm_15s_sample_file_1.3MB.pcm · 1.3 MB

Download
Filename Size MIME Download
.3MB.pcm Starter SHA256 46402bf49c86...
1.3 MB application/octet-stream Download
.5MB.pcm SHA256 b98f6307d7c0...
2.5 MB application/octet-stream Download
.pcm Realistic SHA256 68ab9e124dcf...
430.7 KB application/octet-stream Download
.0MB.pcm SHA256 5a6f31380a92...
5.0 MB application/octet-stream Download
Use cases

Pick the next task, not just the next file.

Raw Audio Playback Validation

PCM for Raw Audio Playback Validation

Open Format PCM

Raw Audio Transfer

PCM for Raw Audio Transfer

Open Format PCM
Compare and decide

Keep the next decision one step away.

FAQ and reference

Keep the operational details quiet.

Checksum Verification

Use checksums to confirm file integrity after download.

shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.
Where is the machine-readable manifest?

Use the manifest when you need stable names, SHA256 values, and URLs for automation.

Validation Methodology
  • Verify duration, sample rate, and channel count in your decoder.
  • Test metadata extraction and malformed-tag handling.
  • Validate seek/stream behavior over slow networks.