Re: Apple II Speaker

["Bill Garber" <willy46pa@comcast.net>]

"Ned Ludd" <spam@luddite.ca> wrote in message
1g54gdd.1lyd73u1nd09dcN%spam@luddite.ca">news:1g54gdd.1lyd73u1nd09dcN%spam@luddite.ca...
> Bill Garber <willy46pa@comcast.net> wrote:
>
> > Is there a place I can read the numeric
> > values of the signals being sent to the
> > A2 speaker? I know that it is being fed
> > pulses at different speeds to create the
> > pitch, but I need to be able to distinguish
> > one tone from another for a program I want
> > to write...
>
> You're working on voice recognition software, right?   ;-)

Uh, no.

> If I understand what you're trying to do (which is doubtful), you might
> need to be looking at what's happening between speaker toggles. Hitting
> the speaker with any value makes it click once, so it is the delay in
> between clicks that determines the pitch. You'll have to have a look at
> your ML sound routine to figure out how the delay is generated.

So, on the Apple II it is not as simple as poking
in a tone and duration as on say an Atari. I have
got the answer to my question though. I have to
work with the signal coming from the speaker terminals
then. I'm not going to say what I'm trying to do.
It's a surprise. ;-)

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy4SPAM6pa@comXcast.net
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