440 Hz test tone WAV (3 seconds)
Three seconds of a 440 Hz sine wave (concert pitch A) with short fades at each end, as 16-bit mono PCM.
Download
sample-test-tone-440hz.wav
258 KB264,644 bytes
Download WAV sampleDirect download. No sign-up and no waiting.
- Type
- audio/wav
- SHA-256
13e01543a7c345f700d4e0ad5ac25d419953ca58b3cce8fae92d556e7cd59591- Direct URL
https://sampletestfiles.com/downloads/samples/sample-test-tone-440hz.wav
Why test with this file
A predictable signal for testing audio playback, waveform display, transcoding and duration detection.
| Duration | 3.000 s |
|---|---|
| Sample rate | 44,100 Hz |
| Channels | 1 (mono) |
| Bit depth | 16-bit PCM |
| Frequency | 440 Hz sine |
What to check
After your application has processed sample-test-tone-440hz.wav, confirm that:
- The reported duration is 3.0 seconds.
- A transcoded copy still plays a steady 440 Hz tone with no clicks at the ends.
- The waveform display shows a constant amplitude with a short fade at each end.
First bytes of the file
The first 64 bytes of sample-test-tone-440hz.wav as a hex dump: offset, bytes, then the same bytes as text. The WAV signature is 52 49 46 46 ?? ?? ?? ?? 57 41 56 45.
00000000 52 49 46 46 bc 09 04 00 57 41 56 45 66 6d 74 20 |RIFF....WAVEfmt |
00000010 10 00 00 00 01 00 01 00 44 ac 00 00 88 58 01 00 |........D....X..|
00000020 02 00 10 00 64 61 74 61 98 09 04 00 00 00 02 00 |....data........|
00000030 09 00 15 00 25 00 39 00 52 00 6e 00 8f 00 b3 00 |....%.9.R.n.....|Preview
Displays the file in your browser.
Technical details
| File name | sample-test-tone-440hz.wav |
|---|---|
| Format | WAV (Waveform Audio File Format) |
| Extension | .wav |
| MIME type | audio/wav |
| Size | 264,644 bytes (258 KB) |
| Kind | Binary |
| Signature | 52 49 46 46 ?? ?? ?? ?? 57 41 56 45 |
| SHA-256 | 13e01543a7c345f700d4e0ad5ac25d419953ca58b3cce8fae92d556e7cd59591 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Audio |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-test-tone-440hz.wav 'https://sampletestfiles.com/downloads/samples/sample-test-tone-440hz.wav'
sha256sum sample-test-tone-440hz.wav # Linux
shasum -a 256 sample-test-tone-440hz.wav # macOSOn Windows, run Get-FileHash sample-test-tone-440hz.wav -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Where it fits
- Web development
Placeholder images, media, data and documents for building and demonstrating web interfaces.
- File parser testing
Well-formed files and deliberate edge cases for testing code that reads CSV, JSON, XML, PDF and more.