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Sample 247 KB AAC File — Free Download for Testing

sample-audio-15s-128kbps.aac · 247,025 bytes · 15 s · AAC · 131 kbps · 44.1 kHz · stereo

Exactly 247,025 bytesaudio/aacDirect linkNo sign-upFree for any use

This is a 247 KB sample AAC file — exactly 247,025 bytes, generated by us rather than scraped, so the size is deliberate and the contents are free of anyone else's copyright. 15s • ADTS 128 kbps (15 s · AAC · 131 kbps · 44.1 kHz · stereo). Use it to test an upload limit near 247 KB, to time a transfer, or as a fixture whose hash never changes.

Sizes here are decimal: 247 KB means 247,025 bytes, not 0.24 MiB. If your limit is expressed in binary units, check the exact byte count above before assuming this file is under it.

Preview: sample-audio-15s-128kbps.aac — every file on this page uses the same test pattern at a different size or resolution.

File details

File namesample-audio-15s-128kbps.aac
Exact size247,025 bytes (247 KB / 241 KiB)
FormatAdvanced Audio Coding (raw ADTS stream) (.aac)
MIME typeaudio/aac
Properties15 s · AAC · 131 kbps · 44.1 kHz · stereo
SHA-25605b5ab37486861c17ae0fbf183378a23cee559812f4934b7031cfd2c5a3f51fd
Direct URLhttps://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/aac/sample-audio-15s-128kbps.aac

Download from the command line

curl -O https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/aac/sample-audio-15s-128kbps.aac
shasum -a 256 sample-audio-15s-128kbps.aac

Other AAC sizes

Frequently asked questions

How big is this AAC file exactly?

Exactly 247,025 bytes (247 KB using decimal units, where 1 MB = 1,000,000 bytes). Binary-unit tools will show a slightly different number: 0.24 MiB. The SHA-256 on this page lets you confirm you received the same file byte for byte.

What can I test with a 247 KB AAC file?

Upload size limits that sit near 247 KB, transfer timing, storage quotas, and any pipeline that behaves differently above or below a size threshold. Pick the file just under and just over your limit to find out whether the limit is inclusive.

Is this file free to use commercially?

Yes. It is generated from scratch by our own open script — no third-party copyright, no scripts or macros inside — and free for any purpose including commercial products and redistribution, with no attribution required.

Found a problem, or something that could be better? We read every message and we fix things quickly.

Sample Files by Pine & Birch — technology consulting, Toronto. Free to use, no signup, no attribution required.