Development of multi-function time domain contribution analyzer and its basic performance

摘要

This paper describes the development of multi-function time domain contribution analyzer and its basic performance. This analyzer has two functions. One function is time domain contribution analyzing function and the other is spectrum analysis function. The contribution analyzing function is to identify the nois source using adaptive signal processing. The spectrum function is to monitor the signals from each channel and to calculate the power spectrum, coherence, transfer function and cross-correlation. The analyzer performance is verfiied by the speaker tests. Results show that the contribution level for each sound source can be estimated within 2dB.