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How to Convert FLAC to WAV
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When Do You Need to Convert FLAC to WAV?
FLAC is the sensible way to store a lossless music library, but a fair amount of software still refuses it, including some DJ tools, older car systems and audio hardware. Converting FLAC to WAV gives you the same audio in the format everything accepts.
What Happens When You Convert FLAC to WAV
ffmpeg decompresses the FLAC and writes the samples as uncompressed PCM in a WAV container. This is genuinely lossless in both directions: FLAC is compressed but discards nothing, so the WAV holds bit for bit the same audio, and converting back to FLAC later would return an identical file. The size roughly doubles, since FLAC typically compresses to around half. Tags are the thing to watch, because FLAC carries rich metadata and WAV has very limited support for it.
Worth knowing before you convert
A whole album converts to several hundred megabytes of WAV. If the reason for converting is one stubborn piece of software, convert only the tracks you need for it.
About FLAC and WAV
audio/flac
FLAC compresses audio data without any loss of quality, reducing file size by roughly 40–60%. It preserves perfect audio fidelity while remaining smaller than WAV or AIFF. FLAC is popular among audiophiles and archival institutions.
audio/wav
WAV is an uncompressed audio format that stores raw PCM audio data. It delivers perfect audio quality but results in very large file sizes. WAV is commonly used in professional audio recording, editing, and archival workflows.
Conversion Notes
Audio conversion from FLAC to WAV re-encodes at the highest quality setting appropriate for the target format. Lossless-to-lossy conversion (e.g., FLAC to MP3) is a one-way process — converting back to lossless does not recover the discarded information. Metadata tags (title, artist, album, track number) are mapped to the closest equivalent fields in the target format.
Frequently Asked Questions
None. FLAC is lossless compression, so decoding it gives back exactly the original samples. The WAV is an exact copy of the audio.