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Date: 1988-08 atari800xl.org comp.sys.atari.8bit
Need help with P-R Connection and Syncalc upgrade  
 
1.  Greg Parsons  
 More options Aug 1 1988, 10:12 pm
Newsgroups: comp.sys.atari.8bit
Followup-To: comp.sys.atari.8bit
From: pars@engr.uky.edu (Greg Parsons) -
Date: 1 Aug 88 13:12:32 GMT
Local: Mon, Aug 1 1988 10:12 pm
Subject: Re: Need help with P-R Connection and Syncalc upgrade
| | | | | | |
Dick, Have you tryed puting the
P-R Connection in line first ?
as for Syncalc on the 130xe try
typeing "key off" before loading
the program.
 hope that helps.

        Greg Parsons


 
digitizing...  
 
1.  "Ray Courtois"  
 More options Aug 2 1988, 4:52 am
Newsgroups: comp.sys.atari.8bit
From: PHR@URIMVS.BITNET ("Ray Courtois") -
Date: 1 Aug 88 19:52:00 GMT
Subject: Re: digitizing...
| | | | | | |

   The only way that I can think of to get the digitized sound
to come out of the tv speaker is to hook a d/a converter up to the
joystick ports (set up the pia for output) and hook the output of the
d/a converter to the audio input on the serial cable (pin 11, I think).
   Alternatly, you could try to use the data to drive the amplitude of
one of the sound chanels, if you know the aproximate frequency of the
sound you are tring to digitize.  This would only work if the frequency
of the sound does not change much..
   I had tried to digitize sound through the pot inputs once before, but
it never worked quite right.  Where did you see the article that said
how to do it??  I would be interested in reading it..

                         Ray Courtois

  Bitnet:   PHR140@URIMVS


 
 
2.  Greg Scribner  
 More options Aug 3 1988, 3:48 am
Newsgroups: comp.sys.atari.8bit
From: pyt@pnet01.cts.com (Greg Scribner) -
Date: 2 Aug 88 09:56:42 GMT
Local: Tues, Aug 2 1988 6:56 pm
Subject: Re: digitizing...
| | | | | | |

   The article was in and old Analog or Antic that my friend had. However,
 when I wanted to borrow the article from him recently, he could not locate
it.
    The program that went with the article supposedly let you digitize sounds
through a microphone, hooked up to the joystick port, and then allow the sound
to be played through the T.V. speaker.
   Anyway, how much do 8-bit d/a's go for these days, or would it be more
economical to by the Parrot II from Alpha systems?

               thanks,
                  Greg Scribner


 
digitizing  
 
1.  Steve Whitney  
 More options Aug 2 1988, 7:05 am
Newsgroups: comp.sys.atari.8bit
From: maver@cl2devy.SGI.COM (Steve Whitney) -
Date: 1 Aug 88 22:05:08 GMT
Local: Tues, Aug 2 1988 7:05 am
Subject: Re: digitizing
| | | | | | |

I haven't played with sound stuff in awhile, but as I recall, you can
output sound using "noise only" through POKEY.  When you use noise only,
the volume bits determine the position of the TV speaker directly.  I'm
pretty sure you could play digitized sound this way if it has enough
bits of precision for you...  Now that I think of it, it's called "volume
only."  You just have to set a bit in AUDCTL.

Steve Whitney (I have no signature file yet...  maybe someday.)


 
 
2.  Christopher Chiesa  
 More options Aug 3 1988, 3:48 am
Newsgroups: comp.sys.atari.8bit
From: cfchi@bsu-cs.UUCP (Christopher Chiesa) -
Date: 2 Aug 88 18:48:41 GMT
Local: Wed, Aug 3 1988 3:48 am
Subject: Re: digitizing
| | | | | | |

In article <1@sgi.SGI.COM>, maver@cl2devy.SGI.COM (Steve Whitney) writes:

> I haven't played with sound stuff in awhile, but as I recall, you can
> output sound using [volume only] through POKEY.  When you use noise only,
> the volume bits determine the position of the TV speaker directly.  I'm
> pretty sure you could play digitized sound this way if it has enough
> bits of precision for you...

> Steve Whitney (I have no signature file yet...  maybe someday.)

Yes, Steve, it CAN be done, and HAS in fact been done.  I have several pro-
grams on my 800 that play snatches of digitized music through the TV (monitor)
speaker: the Kinks' "You Really Got Me" (sic), and Huey Lewis' "Back In Time",
to name just two.  The resolution is pretty limited (a scale of 0-15), which
results in severe audio "clipping" (i.e. non-linearity, i.e. "staticky" or
"noisy" sound), but there's no difficulty in identifying what is being played.

I, too, would be interested in a reference to the magazine article that inspi-
red the original poster; i.e. if I can digitize at home with simple electronic
components, I'd love to know how!
--
UUCP: <backbones>!{iuvax,pur-ee,uunet}!bsu-cs!cfchiesa
cfchi@bsu-cs.UUCP                                          


 
digitizing...  
 
3.  Kenneth Sumrall  
 More options Aug 4 1988, 9:41 am
Newsgroups: comp.sys.atari.8bit
From: k@hpclkms.HP.COM (Kenneth Sumrall) -
Date: 4 Aug 88 00:41:26 GMT
Local: Thurs, Aug 4 1988 9:41 am
Subject: Re: Re: digitizing...
| | | | | | |
/ hpclkms:comp.sys.atari.8bit / pyt@pnet01.cts.com (Greg Scribner) / 12:57 am  Jul 29, 1988 /

>   Latetly, i have been trying to create a digitizing program that uses the
>pots as input. But, I cannot seem to locate a way to output the stored data
>to the T.V. speaker
>and would appreciate if someone could illustrate how. Also, there was a
> program a couple of years back for digitizing sound in Analog or Antic and
>was wandering if anybody could tell me the magizine title and issue number.

>                 thanks in advanced,
>                       Greg Scribner

This is all from the top of my head, but what you are looking for is the
volume only bit in the audio control registers.  It lets you specify 3(4?)
bits of D/A resolution.  The A/D converters used with the paddles provide
8 bits of resolution, and their fastest conversion time is 2 scan lines.

Of course, if you don't have "Mapping the Atari", and the Atari Tech Notes,
you should get them immediately.  De Re Atari is also very worhtwhile.

Good luck.  If you need more information, you can reach me at:
     ken%hpcl@hplabs.hp.com

Kenneth Sumrall


 
AlfCrunch source code  
 
1.  Rich Dankert  
 More options Aug 3 1988, 5:25 pm
Newsgroups: comp.sys.atari.8bit
From: r@lakesys.UUCP (Rich Dankert) -
Date: 3 Aug 88 05:03:53 GMT
Local: Wed, Aug 3 1988 2:03 pm
Subject: AlfCrunch source code
| | | | | | |

[]

        Is the source code available for AlfCrunch.

        If they are, is it possible for some kind soul to foward them
        to me, as we have quite a few members in our local Users Group
        that are most interested in them.

        many thanks

        rich.....
        UUCP: {uwvax}!uwmcsd1!lakesys!rich

--
 Disclaimer: The words, expressions posted here are my own.....
 Nothing is ever so bad that it can't be made worse by trying to fix it
                                                   -- Law of the Hacker


 
1050 disk drive  
 
1.  Mike McPeak  
 More options Aug 4 1988, 7:03 am
Newsgroups: comp.sys.atari.8bit
From: m@resrch.MoliEnergy.BC.CA (Mike McPeak) -
Date: 3 Aug 88 22:03:00 GMT
Subject: 1050 disk drive
| | | | | | |
I am looking for a diagnostics diskette for the atari 1050 drive. I have
posted in Canada only, to no avail. Anyone out there know of such a beast??
Email or post, any help would be appreciated.

                                                mikey@resrch
                                                Michael McPeak
                                                Moli Energy Ltd.
                                                3958 Myrtle St.
                                                Burnaby B.C.
                                                Canada V5C 4G2


 
 
2.  "Ray Courtois"  
 More options Aug 5 1988, 9:47 pm
Newsgroups: comp.sys.atari.8bit
From: PHR@URIMVS.BITNET ("Ray Courtois") -
Date: 5 Aug 88 12:47:00 GMT
Subject: Re: 1050 disk drive
| | | | | | |

   If you need a 1050 diagnostic disk, you might try American TV
(technavision) in california.  I know they have all of the manuals, and
diagnostic cartriges, but I am not sure about disks.  They advertize
in both analog and antic.  I hope this helps..

                     Ray Courtois

  Bitnet:  PHR140@URIMVS


 
Atari Manuals  
 
1.  Brett S Bourbin  
 More options Aug 5 1988, 5:45 am
Newsgroups: comp.sys.atari.8bit
From: brett@pigpen (Brett S Bourbin) -
Date: 4 Aug 88 20:45:44 GMT
Local: Fri, Aug 5 1988 5:45 am
Subject: Atari Manuals
| | | | | | |

I have seen a few messages posted here about some of the old Atari manuals,
and if anyone wishes to buy mine, I would be happy to sell them.  I use to
program on the 800 in assembly language, but I have moved up to a 68000 and
only use the 8bitter to play some Lucasfilms games and M.U.L.E.

I have the Technical Notes (Hardware Manual, OS Manual, and OS Source code),
           De Re Atari "All About Atari",
           Atari Assembly Manuals
           Inside Atari DOS which has the source code to DOS 2
along with the last four years of Antic and ANALOG magazines, but I think I
will hold on to them, unless someone really wants them.

The prices for this stuff, well, I don't really need it and if it would help
someone else, all the better.  I guess a small fee for shipping them out and
a few dollars would be enough.  I am not trying to make money off of this,
just trying to let others get some good use out of the manuals, as I did.

- Brett
 __  __   _  __  _
|  ||  | / ||  || \   Brett S Bourbin
|  ||  ||  ||  ||  |  INTERNET: b@PIGPEN.UMD.EDU
|  ||  ||  ||  ||  |
 \_||_/ |__||__||__|  Instructional Computing Programs    
     College Park


 

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