Re: Cassette recorder and sound files

[Rubywand <rubywand@swbell.net>]

Plooper Web writes ...
> 
> I've set up a IIe and my Mac so that the IIe treats it as a cassette
> recorder and lets me store the data as .snd files.  Is there some way to
> convert disk images into any format of sound file I could transfer over
> in this way?

     On the Mac, you would need to convert the content of disk image files into a
bit stream with enough resolution to descriminate pulse widths used to encode 1's
and 0's. Then, since the files are 143,360 bytes in length, you would need to
break up the send into 3 or 4 chunks. Once the chunks were received, and saved,
you could write the contents, sector by sector, to a diskette and, Viola! you have
your image-->diskette transfer.

     Kind of interesting; but, it sounds like a lot of trouble. (And at the 1300
bits/sec average transfer rate, image transfers would be slow.)

     Since you have a direct connection, you could improve speed by using a
different data format and I/O routine on the Apple II and adding a second line.
This, however, gets pretty close to reinventing the RS-232 interface.

     A good, easy way to transfer files between computers is to set up a NULL
modem connection. This requires having a serial card in your Apple IIe. The Super
Serial Card is a good choice. The card is available from Apple stuff sellers at
low prices.

     With a NULL modem connection you could transfer files using an Apple II
telecom program or you could try MacADT for transferring just disk images. (Never
tried MacADT-- I guess it works like PCADT.)  For more information about this
stuff, see ...

http://home.swbell.net/rubywand/Csa2T1TCOM.html
http://home.swbell.net/rubywand/Csa2FLUTILS.html



Rubywand