A Multiple Input Multiple Output Signal Analyzing System

To observe the interaction between a sound reproducing system and its environment.a number of reference signals and their responses have to be generated and measured simultaneously.A flexible multiple input multiple output signal analyzer combines much of the essential laboratory instrumentation.This paper discusses the combination of a low cost input channel architecture.high speed multiplexing and analog to digital conversion.and multiple signal generation with high speed digital to analog converters to build a cost effective signal analyzing system with real time processing of the data.