Freqency response of headphones measured in free field and diffuse field by loudness comparison

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概要

• 論文の詳細を見る

• Loudness comparisons were performed by four subjects, under two experimental conditions: free field (anechoic room) and diffuse field (reverberation room). Each subject adjusted the headphone level of critical band noise bursts untill they were equally loud as those from a reference loudspeaker (70 dB SPL). Measurement scatter was smaller in the diffuse field than in the free field. To examine the reliability of loudness judgments at high frequencies, another method-hearing thresholds by Bekesy tracking-was employed. Each subject's threshold was measured with both loudspeakers and headphones. After compensation was made for the loudspeaker and room transfer functions, headphone frequency response was extrapolated from the results. This method led to high-frequency responses similar to those from loudness comparison. A loudness comparison experiment in which the subjects continuously wore a headphone was performed. However, the method of sound pressure loss measurement should be reconsidered.

• 社団法人日本音響学会の論文

著者

• Hirahara Tatsuya

  Hearing &amp Speech Perception Department Atr Auditory And Visual Perception Research Laboratori

• Ueda Kazuo

  Hearing & Speech Perception Department, ATR Auditory and Visual Perception Research Laboratories

• Ueda Kazuo

  Hearing &amp Speech Perception Department Atr Auditory And Visual Perception Research Laboratori

関連論文

• Freqency response of headphones measured in free field and diffuse field by loudness comparison

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