Sample AAC Files — Advanced Audio Coding
Download free sample AAC and M4A audio files. Apple's preferred format — used in iTunes, Apple Music, iPhone recordings, and YouTube audio streams. Better quality than MP3 at the same bitrate.
sample-1mb.aac
60s · 128kbps · 44100Hz · stereo
File details and verification
- Filename
- sample-1mb.aac
- Exact size
- 1,048,576 bytes
- Displayed size
- 1 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 427803cea1035621764976121b7d7b46b66ecf334092cbde5ec2ae588b1f55a8
- Header signature
- Matched (AAC ADTS)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 1m
- Bitrate
- 128 kbps
- Sample rate
- 44,100 Hz
- Channels
- stereo
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/aac/sample-1mb.aac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-5mb.aac
300s · 128kbps · 44100Hz · stereo
File details and verification
- Filename
- sample-5mb.aac
- Exact size
- 5,242,880 bytes
- Displayed size
- 5 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 11757698e89a40940dc3abbd8afbfb0ccdd8b961cf1a5da9a382cac0b654f459
- Header signature
- Matched (AAC ADTS)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 5m
- Bitrate
- 128 kbps
- Sample rate
- 44,100 Hz
- Channels
- stereo
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/aac/sample-5mb.aac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample.m4a
120s · 128kbps · 44100Hz · stereo
File details and verification
- Filename
- sample.m4a
- Exact size
- 3,145,728 bytes
- Displayed size
- 3.00 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- be72432f89f7cab718ae6a31b23497d1f9915f909b972d2793e5fcef3b2216be
- Header signature
- Matched (ISO BMFF ftyp box at byte 0 (brand M4A))
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 2m
- Bitrate
- 128 kbps
- Sample rate
- 44,100 Hz
- Channels
- stereo
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/aac/sample.m4a
See how TrueFileSize generates and measures sample files, or review the editorial policy.
About AAC format
- Better quality than MP3 at the same bitrate
- Default format for iTunes and Apple Music
- iPhone voice memos recorded as M4A (AAC in MP4 container)
- YouTube audio stream uses AAC
- Supported by all modern browsers
Frequently Asked Questions
What is the difference between AAC and M4A?
Is AAC better than MP3?
Other audio formats
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