声源类型对头模录音声像定位的影响

Effects of Types of Sound Sources on Sound Image Localization with Acoustic Dummy Head Recording

分析了声源频率以及类型对头模双耳录音声像定位的影响。采用声学头模录制了不同频率、不同时长、以及不同脉冲持续时间的声源作为实验素材,通过主观听感实验分析对声像定位的影响。结果表明,不同类型的声源在中频段定位效果最好,低频段最差。单频信号的声像定位能力要弱于频谱成分丰富的信号。当声源时长达到0.6 s后,声像定位的正确率趋于稳定。实验还讨论了不同类型声源的头中效应的问题。

The effects of different types of sound sources on sound image localization are analyzed. The acoustic dummy head is used to record sound sources with different frequencies, different length time and different pulse duration, and the effect on sound localization is analyzed through subjective listening test. The result shows that the sound localization effect is much better in mid - range frequencies than in low frequencies. Single frequency signal is weaker than the signal of spectral components on sound image localization. When length of the sound source reaehs 0. 6 s, sound image localization accuracy tends to be sta- ble. The experiment also discusses the problem of inside - the - head effects for different types of sound sources.