ALAC
ALAC audio formatUsed for music, speech, and time-based sound.
- Family
- Audio
- MIME
- audio/x-alac
Convert ALAC to WAV online and see exactly what timed-stream transcoding changes, what WAV still can't promise, and how to verify the result.
The waveform and channel layout inside ALAC is decoded first, then re-encoded into WAV's own codec and container profile. Duration typically holds steady even as compression, channel mapping, frame cadence, or auxiliary streams shift underneath it. ALAC arrives as losslessly coded Apple audio whose frame configuration, channel layout, sample depth, timing, and MP4-family tags are decoded independently. WAV delivery writes a RIFF waveform whose PCM precision, rate, channels, channel mask, peaks, and large file size matter more than codec branding.
Decoded from Apple Lossless Audio Codec frames that preserve decoded samples while reducing PCM storage. Encoded to a waveform container written here as uncompressed 16-bit PCM audio.
Used for music, speech, and time-based sound.
Designed for uncompressed production audio.
An elementary or unfamiliar ALAC container may have weaker player support than ALAC inside M4A, and tags can move.
PCM WAV can be much larger than delivery audio, and converting high-bit-depth material to 16-bit changes sample precision.
The verified WAV profile writes 16-bit little-endian PCM rather than a perceptual delivery codec.
Verify lossless decoding, container, sample rate, bit depth, channels, duration, gapless playback, and metadata.
Compare duration, sample rate, 16-bit depth, channels, peaks, and audible clipping.
Switch to WAV only once the destination player, editor, or service has confirmed support for its exact container and codecs. If extra tracks or the original encoding must survive, ALAC remains the safer choice.