Re: How to unroll the imdct??
Rob Leslie <[email protected]>
| Newsgroups | gmane.comp.audio.mad.devel |
|---|---|
| Message-ID | <[email protected]> |
On Nov 24, 2003, at 3:06 AM, forks.tw wrote: > The IMDCT function in MAD seems not easy to understand. > Rob Leslie says that it is custom unrolled and factorized > implementation. But I still don't know how ... > Would you please tell me about the IMDCT algorithm in MAD or any > reference documents? Thank you very much!! ISO/IEC 11172-3 defines the analytical expression of the IMDCT as: where n is the number of windowed samples (12 for short blocks; 36 for long blocks). -- Rob Leslie [email protected]
expr.pdf
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