Ensoniq ES-5506 OTTO

The Ensoniq ES-5506 "OTTO" is a chip used in implementations of sample-based synthesis.

Musical instruments and IBM PC compatible sound cards were the most popular applications.

Each channel can have several parameters altered, such as pitch, volume, waveform, and filtering.

The chip is a VLSI device designed to be manufactured on a 1.5 micrometre double-metal CMOS process.

It was part of the fourth generation of Ensoniq audio technology.