Audio format

AAC Sample Files

AAC (.aac) is a modern lossy audio codec offering improved compression over MP3 at similar bit rates. Used extensively in streaming and mobile platforms, it supports various profiles and containers (ADTS, MP4). Use sample .aac files to validate decoder compatibility, stream buffering, and metadata extraction.

4 files All to 500KB SHA256 verified Manifest included
Quick facts
CategoryAudio
Total Files4
Extension.aac
MIMEaudio/aac
ManifestJSON
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Files first

Start with one representative file.

Starter file

aac_15s_sample_file_142KB.aac · 141.2 KB

Download
Filename Size MIME Download
.aac Starter SHA256 0dc2191764d7...
141.2 KB audio/aac Download
.aac Realistic SHA256 6b09838037eb...
287.8 KB audio/aac Download
.aac SHA256 7cbacc42c6e7...
43.7 KB audio/aac Download
.aac SHA256 a8b1b95fcde1...
580.5 KB audio/aac Download
Use cases

Pick the next task, not just the next file.

Upload Testing

AAC for Upload Testing

Open Format AAC

Parser Regression

AAC for Parser Regression

Open Format AAC

QA Automation

AAC for QA Automation

Open Format AAC
Compare and decide

Keep the next decision one step away.

MP3 vs AAC

Evaluate classic MP3 versus AAC for streaming and mobile playback.

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.