Xref: utzoo comp.sys.amiga.hardware:518 comp.sys.amiga:51127 comp.dsp:532 Path: utzoo!attcan!uunet!aplcen!samsung!cs.utexas.edu!tut.cis.ohio-state.edu!pt.cs.cmu.edu!k.gp.cs.cmu.edu!dandb From: dandb@k.gp.cs.cmu.edu (Dean Rubine) Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga,comp.dsp Subject: Re: Introducing a DSP board for the Amiga (LONG) Keywords: Oops - just nitpicking, so hit 'n' now Message-ID: <8295@pt.cs.cmu.edu> Date: 5 Mar 90 21:51:27 GMT References: <5213@sugar.hackercorp.com> <5231@sugar.hackercorp.com> Organization: Carnegie-Mellon University, CS/RI Lines: 24 In article limonce@pilot.njin.net (Tom Limoncelli) writes: >about it) per number. A CD player plays at 44.1MHz; this means that it >records 44.1 million numbers per second! Now you understand why a DSP >has to be able to do fast math. If you have an equation that will >lower a sound 2 octaves and you want to do it in real-time; you need to >do that equation 44.1 million times per second. You mean 44.1 KHz, of course. Surely a 25 MFlop processor isn't going to do any interesting calculations in one forty-millionth of a second - can't even get one whole flop done in that time. Also, since a CD player is stereo you'd actually get 88,200 16 bit numbers per second. Oh, and CD players don't record. >This article is 100% Copyright 1990 Tom Limoncelli. Re-print and >copying permission granted only from me. Don't let anybody reprint the above paragraph because, well, you'll look silly. -- ARPA: Dean.Rubine@CS.CMU.EDU PHONE: 412-268-2613 [ Free if you call from work ] US MAIL: Computer Science Dept / Carnegie Mellon U / Pittsburgh PA 15213 DISCLAIMER: My employer wishes I would stop posting and do some work.