Audio format

OPUS Sample Files

Opus (.opus) is a versatile, low-latency audio codec designed for interactive applications like VoIP and conferencing. It adapts bit rates dynamically and supports stereo. Use sample .opus files to test real-time decoding, jitter buffer handling, and quality adaptation.

4 files All to 1MB SHA256 verified Manifest included
Quick facts
CategoryAudio
Total Files4
Extension.opus
MIMEaudio/ogg
ManifestJSON
Request Related Coverage
Files first

Start with one representative file.

Starter file

opus_15s_sample_file_281KB.opus · 280.1 KB

Download
Filename Size MIME Download
.opus Starter SHA256 1183d9830a9a...
280.1 KB audio/ogg Download
.opus Realistic SHA256 682b231709b4...
559.8 KB audio/ogg Download
.opus SHA256 7b0bc484aee7...
93.6 KB audio/ogg Download
.1MB.opus SHA256 62d1e696352c...
1.1 MB audio/ogg Download
Use cases

Pick the next task, not just the next file.

Upload Testing

OPUS for Upload Testing

Open Format OPUS

Parser Regression

OPUS for Parser Regression

Open Format OPUS

QA Automation

OPUS for QA Automation

Open Format OPUS
Compare and decide

Keep the next decision one step away.

WAV vs Opus

Compare raw WAV masters against Opus for efficient modern delivery.

Open Comparison

FLAC vs Opus

Assess lossless FLAC archives against Opus delivery efficiency.

Open Comparison
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.