Re: System beep ignored?

[spec@vax2.concordia.ca (Mitchell Spector)]

In article dempson@actrix.gen.nz (David Empson) writes...
>Nathan Mates <nathan@visi.com> wrote:
>>    Because under GS/OS, the system beep is a patchable call to the
>> toolbox, and can thus be rerouted to do anything you want. Under
>> ProDOS 8, the beeps are almost always generated by a call to a
>> ROM routine, which is MUCH harder to patchout.
> 
>No problem at all.  The ROM-based beep routine ($FBDD) is vectored
>through BELLVECTOR ($E1/006C), which normally points to the routine
>which generates the standard "thunk" noise.

    Incidentally, can the Apple IIgs system-beep (that "thunk")
be reproduced by toggling an 8-bit Apple IIe/IIc speaker? I know
the "thunk" and 14 other tone pitches are independant of the 
Ensoniq, but they sound a little too complex to be identical 
to simple speaker toggling. Ensoniq aside, I seem to recall
the GS being able to do a few more tricks with speaker toggling
(Ensoniq DOC aside :) than an off the shelf Apple IIe. Is this
true?

    If an 8-bit II can reproduce the "thunk" of the GS, I'd love
to see a little application that does so (pitches too of course)
just for the sake of it. :-)

Mitchell Spector
spec@vax2.concordia.ca