Re: Apple II Speaker

[Matt Jenkins <mdj@bob.dynalias.net>]

On Fri, 28 Nov 2003 03:29:15 -0500, Bill Garber wrote:

> Is there a place I can read the numeric
> values of the signals being sent to the
> A2 speaker?

If you run the program on an original Apple II or IIe,
you could simply replace the read instruction hitting the
Speaker toggle softswitch with the softswitch for speaker out
then hook it up to a frequency meter or similar device. On
a IIc/c+ you could probably use the headphone socket to achieve
the same thing without modifying the code.

If you don't have a frequency meter, the sound card in a PC
will make a great substitue; rig the apple II up to the line-in
on a PC sound card, record the sound to a wav file, and use one
of the many shareware or open source sound utilities to analyse it.

Hope this helps,

Matt