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From: mark@apple.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Question about Mac II sound generator
Message-ID: <525@apple.UUCP>
Date: Tue, 10-Mar-87 14:03:18 EST
Article-I.D.: apple.525
Posted: Tue Mar 10 14:03:18 1987
Date-Received: Wed, 11-Mar-87 20:01:20 EST
References: <376@batcomputer.tn.cornell.edu>
Reply-To: mark@apple.UUCP (Mark Lentczner)
Organization: Apple Computer Inc., Cupertino, USA
Lines: 43
Keywords: Mac II, sound, music

Here are some responses to some of the sound and music
questions for Macintosh SE & II floating around the net:

1)  Old music and MIDI programs should run with no trouble
    on the Macintosh SE.  There has been no change in the
    sound hardware for that machine and as far as other
    things go, compatability is VERY high.

2)  Macinotsh II has a new Apple Sound Chip (ASC).  The ASC
    has EITHER: stereo sample play back OR four voice wave
    table synthesis in hardware (what you could do in software
    on a machine with a 68020 is unclear, but I've heard
    some developers remark that 16 voices would be very easy.)
    For either mode all samples are 8 bit, and the sample rate
    is either 44.1 kHz CD rate, or the old Macintosh rate,
    22,254.5454 Hz.  Note that the analog sections are exceptionally
    clean and the stereo output jack will drive both line level
    inputs (like your stereo) AND walkman-style headphones or
    self-powered speakers (with the volume in a usable range).


-Mark Lentczner
 ATG Graphics & Sound Group
 Apple Computer, Inc.
 20525 Bandley Drive, MS:22Y
 Cupertino, CA 95014

 mark@apple.CSNET
 {dual,ios,voder,nsc}!apple!mark.UUCP

 P.S.: The above information aught to be correct, I wrote the
 Sound Manager in the Macintosh II rom and helped designed the
 Apple Sound Chip.  It was fun doing it, I hope you all have
 fun using it and making it do great things!
-- 
-Mark Lentczner
 ADG Sound Group
 Apple Computer, Inc.
 20525 Bandley Drive, MS:22Y
 Cupertino, CA 95014

 mark@apple.CSNET
 {dual,ios,voder,nsc}!apple!mark.UUCP