Why do Wav and Flac Files Sound Different?

Another nope.....they sound the same. Don't believe the hype.

When I ripped my CD collection (maybe 400 +-) to a hard drive I ripped in both FLAC and WAV. To my complete surprise I could hear a small difference in sound on playback. The FLAC files sounded a little more laid back. Could be how the streamer, a Node 2I, or the DAC, a Bel Canto, process the data, I don't know. I preferred the WAV files. Memory is so cheap these days, 4TB for around $100, file size is not an issue for me.

Jim S.

And of course the listeners were unaware of file type and metadata status for each trial, correct? And the tests were randomized to prevent  observer bias? And the results were corroborated across multiple listeners, using multiple trials? And all listeners were unaware of the nature of the changes? And dummy A/B trials with identical files were conducted randomly during resting to create a baseline?

No, not all that was done? Not any of that was done? Because absent that minimal  level of basic care in the testing protocols, this 'study' has zero credibility. It's just poor experimental design. Worse, the authors propose no causality attributable to metadata, no 'how' to account for any statistically meaningful differences.

They don't sound different they're the exact same file when uncompressed. The flacs used to take and still do, a bit more horsepower to decompress but nowadays any modern day computer will do the job properly.

Wav vs Flac

Here is a somewhat more nuanced take on the issue. The author is responding to the article that started this thread.

I should stress here that I am not playing my files off of my computer - merely using the computer to store these files and then burn CD's to them which are then played on a Jay's Audio CDT3 Mk3. I am using a 2 year old Dell. What more interests me is the interaction of the computer buffer and perhaps more specifically the buffer involved in CD burning with the quality of the resulting burned CD.

By the way, whether an improvement or not, the "cover art" file is now deleted by me before copying the downloaded Quobuz .wav files to JRiver. I miss the visual tag of cover art in the JRiver front page, but the text caption is sufficient for locating files.