FLAC, WAV, AAC, and MP3 solve different storage and delivery problems. For this video & audio question, the useful answer depends on evidence from the source, the properties named below, and the requirements of the final destination.
Container, codec, profile, bitrate, frame rate, channels, and duration jointly determine whether media will play well. In “Lossless vs. lossy audio for music, speech, and archives,” begin with this specific observation: WAV is simple and production-friendly but usually uncompressed.
Three findings that guide this choice
The core distinction
WAV is simple and production-friendly but usually uncompressed.
The practical trade-off
FLAC preserves audio samples while reducing storage.
The verification test
AAC and MP3 discard masked information for much smaller delivery files.
A practical decision for this workflow
Archive in FLAC or the original production format; export AAC or MP3 for distribution.
Use aac and mp3 discard masked information for much smaller delivery files. as the acceptance test on a representative source before committing an entire archive, publication, or delivery batch.
In practice that means keeping the FLAC master and deriving copies such as FLAC encoded as MP3 or WAV archived losslessly as FLAC.
The video & audio mistake to avoid here
Transcoding one lossy file into another repeatedly and accumulating artifacts.
That failure conflicts directly with the recommendation for “Lossless vs. lossy audio for music, speech, and archives”: Archive in FLAC or the original production format; export AAC or MP3 for distribution.
The same tradeoff applies to every media type, as compression tradeoffs in plain English explains, and for Apple-device delivery the AAC audio converter is the usual lossy target.
Review checklist before delivery
- ✓Video and audio codecs are supported by the destination.
- ✓Duration, frame rate, and audio sync remain correct.
- ✓High-motion detail and quiet audio passages remain acceptable.
- ✓Captions, chapters, and required metadata were retained or exported separately.
Judge “Lossless vs. lossy audio for music, speech, and archives” by whether the result passes these specific checks, not by whether a new file merely opens.