loremfile

Sample WAV audio files for testing — free, CC0, hotlinkable

WAV is uncompressed PCM audio, the format most audio software assumes by default. These files use the canonical 44-byte header, the simple layout that hand-written readers expect and that extra chunks break.

wav/sine-440hz-3s-44k-16bit-stereo.wav is three seconds of a 440 Hz sine at 44.1 kHz, 16-bit stereo: the CD format, and what most software assumes a WAV is.

wav/10mb.wav is exactly 10,000,000 bytes: the 44-byte header plus 2,499,989 frames of the same kind of audio. Uncompressed audio is the one format where a byte count is arithmetic rather than an estimate. Each stereo frame takes four bytes, so the duration follows from the size: just under 57 seconds.

Use them to test audio players, upload size limits with a real media file, speech and audio processing pipelines, and converters. Compare them with the big-endian AIFF file, or with FLAC and MP3 for compressed versions of the tone.

2 files. The same list as JSON: https://loremfile.dev/wav/index.json

WAV files
FileSizePropertiesDescription
10mb.wav 10 MB 56.689 s, pcm_s16le Exactly 10,000,000 bytes: a 44-byte header plus 2,499,989 frames of 44.1 kHz 16-bit stereo sine. Not approximately — exactly.
Snippets 
curl -O https://loremfile.dev/wav/10mb.wav
<audio src="https://loremfile.dev/wav/10mb.wav" controls></audio>
sine-440hz-3s-44k-16bit-stereo.wav 529.2 KB 3 s, pcm_s16le A 440 Hz sine wave: three seconds of 44.1 kHz, 16-bit, stereo PCM — CD format, and what most software assumes a WAV is.
Snippets 
curl -O https://loremfile.dev/wav/sine-440hz-3s-44k-16bit-stereo.wav
<audio src="https://loremfile.dev/wav/sine-440hz-3s-44k-16bit-stereo.wav" controls></audio>

File names follow the naming grammar. Verify a download against sha256sums.txt.