Sample 246 KB M4A File — Free Download for Testing
sample-audio-15s-128kbps.m4a · 246,037 bytes · 15 s · AAC · 131 kbps · 44.1 kHz · stereo
This is a 246 KB sample M4A file — exactly 246,037 bytes, generated by us rather than scraped, so the size is deliberate and the contents are free of anyone else's copyright. 15s • AAC 128 kbps (15 s · AAC · 131 kbps · 44.1 kHz · stereo). Use it to test an upload limit near 246 KB, to time a transfer, or as a fixture whose hash never changes.
Sizes here are decimal: 246 KB means 246,037 bytes, not 0.23 MiB. If your limit is expressed in binary units, check the exact byte count above before assuming this file is under it.
File details
| File name | sample-audio-15s-128kbps.m4a |
|---|---|
| Exact size | 246,037 bytes (246 KB / 240 KiB) |
| Format | MPEG-4 Audio (AAC in MP4 container) (.m4a) |
| MIME type | audio/mp4 |
| Properties | 15 s · AAC · 131 kbps · 44.1 kHz · stereo |
| SHA-256 | bb9002bd9727e6b8eb761b37634a55f457f0fbe3fcbbf0a34982b2a228d2a815 |
| Direct URL | https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/m4a/sample-audio-15s-128kbps.m4a |
Download from the command line
curl -O https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/m4a/sample-audio-15s-128kbps.m4a shasum -a 256 sample-audio-15s-128kbps.m4a
Other M4A sizes
Frequently asked questions
How big is this M4A file exactly?
Exactly 246,037 bytes (246 KB using decimal units, where 1 MB = 1,000,000 bytes). Binary-unit tools will show a slightly different number: 0.23 MiB. The SHA-256 on this page lets you confirm you received the same file byte for byte.
What can I test with a 246 KB M4A file?
Upload size limits that sit near 246 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.
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