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

AIFF is Apple's uncompressed audio container and the byte-order twin of WAV: the same kind of PCM samples, stored big-endian instead of little-endian. A reader that assumes little-endian samples does not crash on an AIFF file; it plays loud noise. That silent failure is what aiff/3s.aiff exists to catch.

The file holds three seconds of a 440 Hz sine wave as 44.1 kHz, 16-bit stereo PCM. Because the signal is a pure tone, a byte-order mistake is unmistakable in a waveform view, and a correct decoder produces a clean, steady pitch.

Use it to test audio libraries, format sniffers that must tell AIFF from WAV by its FORM header, and converters that move audio between Apple and Windows tooling. Compare it with the little-endian WAV files, or with FLAC for the same kind of audio compressed without loss.

curl -O https://loremfile.dev/aiff/3s.aiff

<audio src="https://loremfile.dev/aiff/3s.aiff" controls></audio>