Re: ADTPro Audio - fails

[zzjoki@gmail.com]

On Sep 2, 5:53 am, schmidtd <schmi...@my-deja.com> wrote:
> On Sep 2, 12:57 am, John <zzzj...@yahoo.com> wrote:> Hi,
>
> > I'm attempting to load the audio client via audio and the Apple never
> > returns from the
> > *2000.555CR <enter> command. I have checked the cables, switched
> > cables, and fiddled with the volume up and down almost full scale.
> > Never get a beep or error message.
>
> > The PC host seems to be sending audio data, at least it squeals if I
> > remove the cable from the PC audio out side.
>
> That's encouraging.  At least the audio is getting out of the PC.  For
> the bootstrapping operation, it's really only one-way, so you can
> experiment with a single wire.  Audio out to cassette in.  Note that
> the iconography of the IIe is backwards, at least from my
> perspective... "cassette in" has an arrow pointing away from the
> cassette.  See:http://adtpro.sourceforge.net/connectionsaudio.html
>
> > Anyone get this to work? Are mono cables ok?
>
> Yes, and yes.  I happen to use stereo cables since that's all I have.
> But here's two pieces of YouTube evidence that suggest it does in fact
> work.  Getting the audio levels (and connections) correct is
> definitely fiddly, though:http://www.youtube.com/watch?v=mmPrJCObjuohttp://www.youtube.com/watch?v=CXj2oabxRCY
>
> > Also, is there a way to get some sort of feedback from the Apple to
> > see if it is seeing any signals coming off the cassette-in port? For
> > example, the TRS-80 had a pair of blinking indicators and one could
> > sort of tell what was happening during cassette input by looking at
> > their activity.
>
> Michael Mahon gave a neat example of echoing the cassette data to the
> Apple spaker.  The Great and Powerful Woz didn't give us visible or
> audible feedback from the cassette the way the TRS-80 did (I hadn't
> thought about those asterisks for years!).  If you want to run
> Michael's program, type this on the Apple:
> CALL -151
> 300:AD 60 C0 AA 8A 4D 60 C0
> 308:10 FA 8D 30 C0 8A 49 80
> 310:4C 03 03
> 300G
> and then have the ADTPro server send its data.  You should be able to
> swap cables until you hear the pitch change.

Thank you Michael and Schmidtd. I'll keep fiddling around with volume
and cables.
The feedback should help (the code for cassette read) a lot.

jk