[comp.sys.mac.programmer] Sound Manager esoterica

elwell@tut.cis.ohio-state.edu (Clayton Elwell) (06/13/88)

Well, I've been playing with the Sound Manager, and I think I grok it
pretty well.  I can play in stereo, I can play at 44KHz, I can do all
sorts of nifty things.  However, I have two questions, and I thought
I'd ask here before (a) doing a lot of trial and error to find out, or
(b) annoying people at Apple via AppleLink.

1) In the original notes I have about the Mac II, it says that the
sound circuitry can operate in a "companding" mode, thus dramatically
increasing the dynamic range of the resulting sound.  However, I have
no idea how to turn this on.  Was this just a gleam in someone's eye,
or is it just undocumented :-)?

2) The Sound Manager will let me open as many channels of sampled
sound as I want.  How many can I have actually producing sound at once
on a Mac II?  How about an SE or a Plus?

Thanks for any help,


Clayton M. Elwell <elwell@tut.cis.ohio-state.edu>
Ohio State University CIS Dept. Research Computing Facility

"... there was a *third* possibility that we hadn't even counted
upon ..."		--Arlo Guthrie, "Alice's Restaurant"