A/D Converter
A 4-bit simple cartridge with a one mono input on the front of the cartridge.
that can sample very good audio quality, but with a maximum of 4 bits sampling.
This AD converter uses the lower 4 bits of address $D500 .
The cartridge comes with a 2 sides floppy that have the following software on it:
1) Studio Master
2) TML Sample
3) Digital Studio II
4) Sample Editor 1.0
Studio Master
This program is written for memory upgraded systems, 
like the 130xe and 256kb Compy Shop compatible upgrades.
(ANG published that they where working on a 1meg Version)
If use this program with a normal 64kb machine,
you will get a sample buffer of only 16kb.
the program can be control by a Joystick or a Mouse
Some of the features of this program are:
-Sampling 4-bits
-Replay 4-bits
-Save and Load samples
-Cut and paste
-Create instruments
-Create playable song with patterns
-Stereo Computer Compatible
-Sample as graphics on screen
TML Sample
Another Sample Utility that can Digitize Audio
on a 64k or more Atari 8bit computer.
