Re: ADTPro Audio - fails

[winston19842005 <bjjlyates@NOSPAMbellsouth.net>]

On 9/2/08 9:11 AM, in article
0677e195-1546-46af-9ed8-1609b2aa05dd@v13g2000pro.googlegroups.com,
"zzjoki@gmail.com" <zzjoki@gmail.com> wrote:

> 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.
> 

Most interesting was the Sinclair line, many of them changed the screen
background color - and it happened so fast that you'd get horizontal
stripes... Plus part of the load could be data loaded directly onto the
graphics screen, thereby giving you sort of a "splash screen" while the rest
of the program loaded.

I've seen a few of these on Youtube, and they are pretty cool.