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Re: How is the IIgs beep generated?
- Subject: Re: How is the IIgs beep generated?
- From: Sheppy <the.sheppy@gmail.com>
- Date: Thu, 19 Nov 2009 14:20:05 -0800 (PST)
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On Nov 19, 5:13 pm, dog_...@macgui.com (D Finnigan) wrote:
> Some discussion on the Wikipedia page got me wondering: how is the Apple
> IIgs beep generated? Some say it is an algorithmically drawn waveform, fed
> to the DOC, while others suppose that it is generated by the Ensoniq.
The Apple IIgs beep is actually generated old-school, by triggering
the speaker port at $C030. That's why the Gus emulator had sound
resources for the IIgs system beep sound effect; it didn't emulate the
$C030 sound toggle register, so to get the system beep working, they
patched the beep routines to play a Mac sound resource file instead.
Sheppy