Re: Apple IIGS sound effects

[Mitchell Spector <mitch2gs@hotmail.com>]

"Jeff Blakeney" <jeff.blakeney@a2central.com.remove-y5i-this> wrote:

>  To: Michael J. Mahon
>On Tue, 26 Aug 2008 11:17:52 -0700, Michael J. Mahon wrote:
>
>> limtc wrote:
>>> I am looking for either MIDI or MP3 format for sounds like the bong
>>> (CTRL-G), etc. Is there such a site?
>> 
>> Is the raw "bong" sound in ROM?  It shouldn't be hard to isolate
>> it and convert it to whatever form you like.
>
>I believe the standard IIgs beep that is played on power on is a
>synthesized sound as opposed to a digitized sound.  This is why you can
>change the pitch of the beep in the control panel without changing its
>duration.

    Definitely synthesized, however it's NOT produced by the Ensoniq.
If you have a stereo card installed (which only taps into Ensoniq audio)
the IIgs "bonk" is not heard through attached speakers. It's basically
1-bit audio generated by the toggling the internal speaker on and off,
much the same way the Apple IIe "beep" is produced.

    I still wonder, all these years later, can you reproduce the IIgs 
"bonk" on a standard Apple IIe? I would say 'yes', unless there
is extra audio circuity that let's the GS produce more advanced
speaker toggling audio than the IIe, not related to the Ensoniq. 
Similar to how the Apple III has a 6-bit DAC for audio.

Mitchell Spector