Re: QDM2 progress report
Jim Leonard <[email protected]>
| Newsgroups | gmane.comp.video.xine.codec.devel |
|---|---|
| Message-ID | <[email protected]> |
Benjamin Larsson wrote: > Companding is used in most codecs I think. That wasn't my impression... however, I've got simple time domain codecs on the brain right now so I'm biased. If I do frequency-domain codec research I'll probably change my mind. > If you requantize PCM you can > get down to 12bits/sample before the quantization noise gets to > noticeble. If you compand it you can get it down to 11 bits/sample. > But going from 16 to 8 bits is too harsh. mu-law is based on 14-bit input, not 16-bit. Small nitpick. But I agree that even 14-bit to 8-bit is too harsh, even if the quantization isn't linear. -- Jim Leonard ([email protected]) World's largest electronic gaming project: http://www.MobyGames.com/ A delicious slice of the demoscene: http://www.MindCandyDVD.com/ Various oldskool PC rants and ramblings: http://www.oldskool.org/ ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click