SEGA SATURN DEVELOPER'S MANUAL

Pulse Code Modulation sound generator: Refers to a sound source that generates PCM data and stores it in memory, and then reads the sound from memory during performance and outputs the sound. PCM is to divide a sound (waveform) according to the time axis and replace each peak value with digital data. The data obtained from this work is called PCM data.
FM(Frequency Modulation): Refers to frequency modulation. In the sense of sound source, it means FM sound source.
Linear: Indicates a straight line state. This means that the relationship between input and output is proportional. Therefore, the fact that the waveform data is linear means that a peak value proportional to the size of the data can be obtained. This means that the quantization steps are equally spaced.
LFO(Low Frequency Oscillator): A function generator that generates a waveform with a frequency lower than the range that can be heard by the human ear. The LFO waveform output is used for modulation of amplitude and frequency.
DSP(Digital Signal Processor): A high-speed operation dedicated circuit that mainly performs operations (multiplication / addition) at high speed. The DSP built into SCSP specializes in audio functions and is used as a means of producing effects called acoustic effects such as echo, reverb, chorus, and filter.
Number of samples: Indicates the number of waveform data.