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
Files first
OPUS Sample Files — Download
Starter file
DownloadUse cases
OPUS Testing Workflows
Compare and decide
OPUS Format Comparisons
WAV vs Opus
Open ComparisonFLAC vs Opus
Open ComparisonFAQ and reference
OPUS File FAQ
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.
Use in code — curl, Python, Node, wget
Copy any snippet directly into scripts, test suites, or CI pipelines. All URLs are stable and publicly accessible with no auth required.
# Download opus_15s_sample_file_281KB.opus
curl -L -o opus_15s_sample_file_281KB.opus \
https://samplefile.com/samples/download/audio/opus/opus_15s_sample_file_281KB.opus/
# Or fetch a random OPUS file
curl -s "https://samplefile.com/samples/api/random?format=opus" | jq -r '.download_url'# Download opus_15s_sample_file_281KB.opus
wget -O opus_15s_sample_file_281KB.opus \
https://samplefile.com/samples/download/audio/opus/opus_15s_sample_file_281KB.opus/import requests
# Download a specific file
url = "https://samplefile.com/samples/download/audio/opus/opus_15s_sample_file_281KB.opus/"
resp = requests.get(url)
with open("opus_15s_sample_file_281KB.opus", "wb") as f:
f.write(resp.content)
# Or fetch a random OPUS file via API
meta = requests.get("https://samplefile.com/samples/api/random?format=opus").json()
resp = requests.get(meta["download_url"])
with open(meta["name"], "wb") as f:
f.write(resp.content)// Download a specific file
const fs = require("fs");
const https = require("https");
const url = "https://samplefile.com/samples/download/audio/opus/opus_15s_sample_file_281KB.opus/";
https.get(url, (res) => {
res.pipe(fs.createWriteStream("opus_15s_sample_file_281KB.opus"));
});
// Or fetch a random OPUS via the API
const meta = await fetch("https://samplefile.com/samples/api/random?format=opus").then(r => r.json());
const file = await fetch(meta.download_url);
// use file.arrayBuffer(), file.body, etc.# Random OPUS file (JSON response)
GET https://samplefile.com/samples/api/random?format=opus
# All OPUS files
GET https://samplefile.com/samples/api/files?format=opus
# Manifest with SHA256 checksums
GET https://samplefile.com/samples/audio/opus/manifest.json
# Response includes: name, size_bytes, mime_type, sha256, download_urlValidation 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.