PSR-OR700 - Yamaha PSR-OR700

A synthesizer is a kind of electronic musical instrument, or electronic device capable of producing or manipulating audio tones, such as musical notes, through audio signal processing. The term originates from the Greek word Syntithetai. One of the main features of synthesizers is that they work by manipulating electrical signals, ...

A programmable music synthesizer has a keyboard which also generates an expression signal representing the pressure on the keyboard and utilizes the change in an infrared path length for producing this expression signal. Synthesizers work by manipulating electrical signals which appear as sound when they are used to drive audio ...