Fernando Alberto Marengo Rodriguez
2010-Jun-09 23:33 UTC
[Flac] Question about residue and pdf
Dear list, I wonder if the flac encoded file has a great amount of bits due to the residue. I mean, what percentage of the flac file has information of the residue? Is this sequence represented by more than 80% of the flac file? On the other hand, which is the value typically adopted for the parameter "n" in the Rice coder? I know these results depend on the input wav file, but I just want to know some typical values for the cases already studied. Thank you very much in advance. Kind regards, Fernando ------------------------------------ Dr. Fernando A. Marengo Rodriguez Acoustics and Electroacoustics Laboratory National University of Rosario Rosario - Argentina -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac/attachments/20100609/5ffc2401/attachment.htm
On Jun 9, 2010, at 16:33, Fernando Alberto Marengo Rodriguez wrote:> I wonder if the flac encoded file has a great amount of bits due to > the residue. I mean, what percentage of the flac file has > information of the residue? Is this sequence represented by more > than 80% of the flac file? > > On the other hand, which is the value typically adopted for the > parameter "n" in the Rice coder? > > I know these results depend on the input wav file, but I just want > to know some typical values for the cases already studied.That's a very interesting question. Do any of the existing tools report these factors? Maybe there is an option for flac which will show some numbers during encoding, or maybe metaflac has an option for reporting some stats on an existing file. If there isn't an existing option for either of the standard tools, then you might have to write some code using the flac library to scan through a stream and report statistics. Brian Willoughby Sound Consulting