Dmitry Nechaev, Olga Milekhina, Marina Tomozova, Alexander Supin
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引用次数: 0
摘要
目的测量听力正常者和听力受损者对波纹频谱信号中波纹滑动的敏感度：测试信号是以 2 kHz 为中心的 2 oct 宽波纹噪声，波纹沿频率刻度向下滑动。滑行速度和波纹密度在整个信号波段内都与频率成比例。波纹密度以波纹/八度为单位，速度以八分/秒为单位。听者的任务是分辨有滑行波纹的信号和无波纹的信号：在所有听者组中，波纹密度的增加会降低可探测到的波纹滑行的最大速度。波纹滑行的速度极限随听力损失而降低：结论：听力受损听者的时间分辨率下降可以解释上述结果。
Hearing Sensitivity to Gliding Rippled Spectra in Hearing-Impaired Listeners.
Objectives: Sensitivity to the gliding of ripples in rippled-spectrum signals was measured in both normal-hearing and hearing-impaired listeners.
Methods: The test signal was a 2 oct wide rippled noise centered at 2 kHz, with the ripples gliding downward along the frequency scale. Both the gliding velocity and ripple density were frequency-proportional across the signal band. Ripple density was specified in ripples/oct and velocity was specified in oct/s. The listener's task was to discriminate between the signal with gliding ripples and the non-rippled signal.
Results: In all listener groups, increasing the ripple density decreased the maximal velocity of detectable ripple gliding. The velocity limit of ripple gliding decreased with hearing loss.
Conclusions: The results can be explained by deteriorated temporal resolution in hearing-impaired listeners.
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The mission of Audiology Research is to publish contemporary, ethical, clinically relevant scientific researches related to the basic science and clinical aspects of the auditory and vestibular system and diseases of the ear that can be used by clinicians, scientists and specialists to improve understanding and treatment of patients with audiological and neurotological disorders.
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