Microphone techniques and directional quality of sound reproduction

摘要

Different spatial sound reproduction techniques are evaluated using a binaural auditory model. Ear canal signals fordifferent microphone techniques and different loudspeaker reproduction are simulated. Directional auditory cues arecalculated and directional quality is discussed. The results of recording techniques for stereophonic listening explainthe subjective opinions presented in literature : With coincident microphone techniques directionally fairly stable andconsistent virtual sources can be produced, and with spaced microphones more spread and ambiguous virtual sourcesare achieved . In multichannel reproduction, none of the existing microphone techniques are found to produce gooddirectional quality. Both coincident and spaced microphone techniques produce spread virtual sources.