FLAC vs WAV


I have observed (heard and then tested so as to confirm) the following “condition” as it relates to the widely debated issue of FLAC quality. The purpose of this topic is to gather opinions as to whether or not your observations are similar too – and therefore support – my own.

It is widely understood and accepted that a FLAC file while “compressed” is “lossless” as compared to its corresponding WAV file. Let’s assume (i.e. not debate) this is completely true. What I am noticing is that when the FLAC file is “played” via any FLAC player it sounds different from the sound of the “same” (equivalent decompressed FLAC) WAV file when played back via the same player that was used to play the FLAC file. This is specifically noticeable (to me) in the low frequency spectrum. The WAV has considerably more “sonic energy” that manifests itself as appearing to be a bit louder, wider in frequency range and perhaps even dynamic range as compared to the FLAC equivalent.

I’m curious as to your findings when you compare a FLAC file played natively as compared to the WAV equivalent played via the same player (for example, play both the FLAC and WAV via VLC media player) or practical equivalent, such as if the FLAC was burned to CD and you are comparing the FLAC played via VLC and the CD played via a CD player.

I am further assuming that the WAV file is a more accurate representation of the audio than the FLAC. This is to say that should you agree with the aforementioned, it would be preferable to play the WAV file or decompress the FLAC file before using it.

128x128gdhal
EZ CD Audio Converter has 0-Fastest, 5-Default, and 8-Smallest
dB Poweramp has Lossless Uncompressed, Lossless Level 0-Fast, and 8-Highest. Which one do I use?

IF you have a resolving system (most think they do, but they don’t), you will hear this difference, PROVIDING that you are using a playback software such as Foobar, Jriver or Amarra on a PC or Mac and outputting via USB or S/PDIF.

We can argue this until the cows come home, but its simply true. I don’t know why. I can speculate, but I have no proof.

So, how can this problem be eliminated?

Possibly by using a network server that eliminates the use of the audio stack in the computer or server.

Possibly by purchasing a well-designed server like the Antipodes from New Zealand. I did this comparison at a trade show and it is the ONLY server I have used where the FLAC and WAV files sounded alike.

I am not affiliated with the guys making Antipodes servers.

BTW, I have made this comparison with AIFF, ALAC, FLAC, uncompressed FLAC and they all sound compromised compared to WAV.

Steve N.

Empirical Audio

Steve (audioengr), given your response, would you go further to say that by extrapolation, one should convert FLAC to WAV prior to burning to CD (as opposed to letting the same CD burning software do the conversion)? Again, in my case I would convert the FLAC to WAV using Traders Little Helper and then burn using Ashampoo V6 (Windows 10). This would be opposed to not using Traders Little Helper and allowing Ashampoo to burn the FLACS to CD (as audio CDA files) directly.
NAIM Uniti rips to WAV only..maybe that is WHy they made that decision ( long ago)... they do seem to place a priority when voicing on bass drive.

One thing you may want to do is precise level match check with your FLAC to WAV comparisons including ripping some tones, the Stereophile test disc and or a tone generator might be a good starting point....as a thought.

cool thread and civil discussion..appreciated..