Since the Game Boy hardware is already ten years old, it can be considered rather old fashioned by today's standards. Nevertheless it is possible to create surprisingly good sounds if the sound artist is fully aware of the possibilities and the limitations of the Game Boy sound hardware.

The Game Boy sound hardware is comprised of 4 individual sound generators of three different kinds. Two of those four generators are identical in function with the exception of one special feature on one of them.

The three different kind of sound generators are as follows:

Voice1 also offers a very limited pitchsweep function, which is NOT supported by MusyX. Instead we are offering 2 sophisticated pitchsweeps for Voice1 through Voice 3 and a more flexible envelope for all 4 voices in software.

Finally, each voice can be assigned to the left, right or both sound outputs individually. This selection allows for a wide stereo spectrum.

MusyX even extends on the capabilities of the Game Boy and adds a few new features like extended sample playback and pulse-width modulation.

Extended features fall in the categories of pitch and volume changes. To modify pitch for instance, MusyX adds features like vibrato, portamento, pitch sweeps, fixed pitches and random pitches for Voice1, Voice2 and Voice3.