And another point. For different subband, we'll treat different subband differently, so a filter bank in advance can help us achieve this. This may also result in different encoder. Should be more apperent if we have another mp3 encoder source.
2006/4/11, [EMAIL PROTECTED] < [EMAIL PROTECTED]>: > > Send mp3encoder mailing list submissions to > mp3encoder@minnie.tuhs.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://minnie.tuhs.org/mailman/listinfo/mp3encoder > or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > > You can reach the person managing the list at > [EMAIL PROTECTED] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of mp3encoder digest..." > > > Today's Topics: > > 1. Question about Subband filtering (YUE LI) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 10 Apr 2006 06:51:46 +0000 (GMT) > From: YUE LI <[EMAIL PROTECTED]> > Subject: [mp3encoder] Question about Subband filtering > To: mp3encoder@minnie.tuhs.org > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=gb2312 > > Hi, > > I have a very simple question. But I just couldn't make it out. > > As I know, both psychoacoustic model and quantization use scalefactor > bands, not equally divided subbands. > > So why Polyphase subband filtering is performed in the beginning of > encoding? > > Looking forward to your help... > > Thanks & Regards > Yue > > ------------------------------ > > _______________________________________________ > mp3encoder mailing list > mp3encoder@minnie.tuhs.org > http://minnie.tuhs.org/mailman/listinfo/mp3encoder > > End of mp3encoder Digest, Vol 33, Issue 3 > ***************************************** > _______________________________________________ mp3encoder mailing list mp3encoder@minnie.tuhs.org http://minnie.tuhs.org/mailman/listinfo/mp3encoder
