Does mp3 convert to WAV losslessly?

Does mp3 convert to WAV losslessly?, Title is the question

Gainless View Member Profile	Mar 28 2012, 20:38 Post #1
Group: Members Posts: 150 Joined: 28-October 11 Member No.: 94764	I just wondered if this the case, because actually the Mp3 format is using a lot of of overdrives which is not possible in a WAV file. So if I e.g. make an audio CD with some Mp3's, will they remain exactly the same or will they differ from what an audio player would decode?

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Gainless View Member Profile	Apr 8 2012, 00:15 Post #2
Group: Members Posts: 150 Joined: 28-October 11 Member No.: 94764	Well, to bring it to the point: Is it possible to do a bit-exact conversion of an mp3 to a WAV file? If I understood the previous posters right it's not due to the high peaks of an mp3 file...

saratoga View Member Profile	Apr 8 2012, 00:36 Post #3
Group: Members Posts: 4135 Joined: 2-September 02 Member No.: 3264	QUOTE (Gainless @ Apr 7 2012, 19:15) Well, to bring it to the point: Is it possible to do a bit-exact conversion of an mp3 to a WAV file? As I said before, decoding is an approximate process. There is nothing to be "bit-exact" in comparison to. QUOTE (Gainless @ Apr 7 2012, 19:15) If I understood the previous posters right it's not due to the high peaks of an mp3 file... Yes, peaks are not really related to MP3, they're more generally a question of how DSP operations are implemented on computers. Any lossy process can introduce above full-scale peaks, and any well implemented DSP process can handle them by using proper precision and/or scaling. MP3 is no different. The player on your CD player could screw it up, or the player on your computer could screw it up. If in doubt, you can always add a dB or two of EQ precut or use replaygain to avoid this whole problem.

Posts in this topic

Gainless Does mp3 convert to WAV losslessly? Mar 28 2012, 20:38

pdq Different mp3 decoders, if they are working correc... Mar 28 2012, 20:49

saratoga QUOTE (Gainless @ Mar 28 2012, 15:38) I j... Mar 28 2012, 20:59

stephan_g I think what the OP wanted to know was: If the MP3... Apr 5 2012, 16:56

mjb2006 Couldn't you just apply ReplayGain, using the ... Apr 7 2012, 05:21

Gainless Well, to bring it to the point: Is it possible to ... Apr 8 2012, 00:15

saratoga QUOTE (Gainless @ Apr 7 2012, 19:15) Well... Apr 8 2012, 00:36

frenzic to the op the fraunhofer institute has something ... Apr 8 2012, 03:35

lvqcl Can you losslessly convert sqrt(2) to a real numbe... Apr 8 2012, 09:47

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