Skip to main content
19 votes

FLAC compression level comparison/efficiency analysis

FLAC compression levels are (only) a trade of between encoding time and file size. The decoding time is pretty much independent of compression rate. In the following I will refer to the compression ...
Suuuehgi's user avatar
  • 391
4 votes
Accepted

FLAC compression options unclear: --exhaustive-model-search, --qlp-coeff-precision-search

They give a small improvement to the compression at the cost of encoding time. As neither requires specifying --lax, they do not make the resulting files less compliant. -8e, -8p and -8ep could be ...
mossymountain's user avatar
3 votes
Accepted

Are FLAC audio files automatically decompressed by music players?

Yes. Without decompression a flac file contains just pseudo-random data. A media player requires an ordered stream of PCM stereo audio samples in order for them to be converted to analogue audio via a ...
Mark's user avatar
  • 8,900
2 votes

How can to find the play-time of a `.flac` file?

Total Samples / Sample Rate (Hz) = playback/recording time (s) In this case: Total Samples = 10238256 Sample Rate = 44100 Hz Thus: 10238256 / 44100 = 232.160068027210884 seconds Explanation The ...
7HzResearch's user avatar
2 votes

from Flac to wav

FLAC is lossless compression. During compression, you can set a compression option: setting this to a higher level creates a smaller file that is still lossless by taking more time to process the file....
Hobbes's user avatar
  • 1,728
1 vote

Spotting a fake flac using spectrogram

This looks "extended" because of the (most probably) linear scale that your spectrogram is using on the frequency axis. It should look way more common if you switch it to log or similar. @...
ValiumDuPeuple's user avatar
1 vote

Is there a standard way of naming user-defined metadata tags in .flac files?

The most efficient way to prevent name collision in the FLAC metadata seems to register a FLAC id as described here : https://www.xiph.org/flac/id.html FLAC allows third-party applications to ...
audionuma's user avatar
  • 2,844
1 vote

How do I compress 32-bit float PCM a perfectly lossless way?

http://www.wavpack.com/ has the specs of the supported file formats. Wavpack supports both lossless and lossy compression depending on the configuration options selected during processing.
Mark's user avatar
  • 8,900
1 vote

FLAC compression level comparison/efficiency analysis

As a followup to Suuuehgi's answer, I'd also like to add that if you are starting from a CD and ripping it directly to FLAC, encoding time may not matter at all because you have to first rip the music,...
ryancdotnet's user avatar
1 vote

Any reason not to convert WAV to FLAC and save some disk space?

I'm struggling with this issue now, as well. The one downside to Flac, that I can see, is that it doesn't support media cues. One benefit to recording in Wav is that I can record a lot of audio at ...
3x5's user avatar
  • 111
1 vote

Converting WAV to FLAC. Compression level 0 has higher bitrate than 8

There is a limit to the amount of compression you can achieve with a "Lossless" compression algorithm - at some point all the recognizable patterns are removed and your file essentially becomes random ...
Mark's user avatar
  • 8,900
1 vote
Accepted

FLAC --bps setting real meaning

According to the man page, --bps specifies the bits per sample. As far as I can tell, this parameter controls the data that will be encoded using FLAC, and can have a lossy effect. For example, here's ...
Linuxios's user avatar
  • 145
1 vote
Accepted

Playing FLAC in home theater system that doesn't support it?

Your Sony Home Theater System probably doesn't support FLAC because it doesn't have the codec to uncompress the FLAC audio files. It kind of depends on the features of your hardware and the settings ...
Carl Youngquist's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible