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From: jmunkki@hila.hut.fi (Juri Munkki)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Simultaneously played digitized sounds
Keywords: divide
Message-ID: <1990Jul9.104648.23538@santra.uucp>
Date: 9 Jul 90 10:46:48 GMT
References: <1032@swan.ulowell.edu> <36690003@hpindwa.HP.COM> <25974@pasteur.Berkeley.EDU>
Sender: news@santra.uucp (Cnews - USENET news system)
Reply-To: jmunkki@hila.hut.fi (Juri Munkki)
Organization: Helsinki University of Technology, FINLAND
Lines: 15

In <25974@pasteur.Berkeley.EDU> eta@ic.Berkeley.EDU.UUCP (Eric T. Anderson):
>Hey -- be careful.  You know you're throwing away bits for no reason
>if you pre-divide.  How about add first and then post-divide?  On a
>Mac, doing byte-addition is just as quick as 16-bit addition (except
>if you're adding constants). Right?

Every cycle counts when you are doing things like this. I found it optimal
to pre-divide. I also used only 11 Khz sound. Doing two 11 Khz sounds with
pre-divide doesn't add all the much overhead, so my animation routine were
not hurt too badly. Two sound channels is infinitely better than just one.

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