1 MB WAV sample file
A WAV file of exactly 1,048,576 bytes. It is a valid Waveform Audio File Format file, generated for this site and checked with an independent parser.
Download
sample-wav-1mb.wav
1 MB1,048,576 bytes
Download 1 MB WAVDirect download. No sign-up and no waiting.
- Type
- audio/wav
- SHA-256
609e6cc2c027188d62b1c8e06a7188672af402d9498fc905bc23e57e0eb29849- Direct URL
https://sampletestfiles.com/downloads/wav/sample-wav-1mb.wav
What is in this file
5.9 s of a synthesised eight-second musical phrase that repeats, as uncompressed 16-bit stereo PCM behind a 44-byte RIFF header. No padding is needed: the sample count sets the size.
| Duration | 5.9 s |
|---|---|
| Sample rate | 44,100 Hz |
| Channels | 2 (stereo) |
| Bit depth | 16-bit PCM |
| Bit rate | 1,411 kbit/s |
First bytes of the file
The first 64 bytes of sample-wav-1mb.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 f8 ff 0f 00 57 41 56 45 66 6d 74 20 |RIFF....WAVEfmt |
00000010 10 00 00 00 01 00 02 00 44 ac 00 00 10 b1 02 00 |........D.......|
00000020 04 00 10 00 64 61 74 61 d4 ff 0f 00 00 00 00 00 |....data........|
00000030 02 00 03 00 07 00 0d 00 10 00 1d 00 1c 00 33 00 |..............3.|Preview
Displays the file in your browser.
Where 1 MB matters
A 1,048,576-byte file: exactly the default upload limit of nginx, Spring Boot and Next.js. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| nginx | 1 MB by default (client_max_body_size) | A multipart upload of this file exceeds the limit by the size of the form boundaries. |
| Spring Boot multipart | 1 MB per file by default (max-file-size) | A file of exactly 1 MB is at the limit. |
| Next.js API routes and Server Actions | 1 MB by default | Larger bodies need the size limit raised in configuration. |
| Cloud Firestore documents | 1 MiB (1,048,576 bytes) | The same number of bytes as this file. |
| Apache Kafka messages | About 1 MB by default | Brokers reject larger records unless message.max.bytes is raised. |
Use this file for
- Download tests on mobile connections
- Checking transcoding to MP3, AAC or Opus
- Testing speech-to-text input handling
Testing notes for WAV
- Not every WAV file has a 44-byte header; extra chunks may appear before the audio data, so parsers must walk the chunk list.
- Three MIME types are in common use: audio/wav, audio/x-wav and audio/vnd.wave. Allow-lists should accept all of them.
Technical details
| File name | sample-wav-1mb.wav |
|---|---|
| Format | WAV (Waveform Audio File Format) |
| Extension | .wav |
| MIME type | audio/wav |
| Size | 1,048,576 bytes (1 MB) |
| Kind | Binary |
| Signature | 52 49 46 46 ?? ?? ?? ?? 57 41 56 45 |
| SHA-256 | 609e6cc2c027188d62b1c8e06a7188672af402d9498fc905bc23e57e0eb29849 |
| 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-wav-1mb.wav 'https://sampletestfiles.com/downloads/wav/sample-wav-1mb.wav'
sha256sum sample-wav-1mb.wav # Linux
shasum -a 256 sample-wav-1mb.wav # macOSOn Windows, run Get-FileHash sample-wav-1mb.wav -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 1 MB?
- Yes. It is 1,048,576 bytes, which is 1 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 1 MB WAV file?
- 5.9 s of a synthesised eight-second musical phrase that repeats, as uncompressed 16-bit stereo PCM behind a 44-byte RIFF header. No padding is needed: the sample count sets the size.
- What format are the WAV samples?
- 16-bit stereo PCM at 44,100 Hz with the canonical 44-byte header.