threshold sound intensity 阈值声强 threshold of sound 听阈 on the threshold 在门口 on the threshold of 在...的开头, 在...快要开始的时候, 在...的前夕 at the threshold of 在…的开始,即将… chromatic threshold 色阈 achromatic threshold 无色阈值 breakdown threshold 击穿阈值 absolute vi...
reference sound intensity 基准声强 sound intensity decay 声强衰减 相似单词 threshold n.[C] 1.阈值,下限 2.门槛 3.开端 Threshold 临界值 consciousness threshold 【医】 意识阈, 神志阈 thermo threshold 温觉阈值 intensity n. 1.[U]强烈;剧烈;极度;紧张;极端 2.[U,C](电、光、热等的)强度...
A. F. RAWDON㏒MITHPsychological Laboratory, CambridgeR. S. STURDYPsychological Laboratory, CambridgeJohn Wiley & Sons, LtdBritish Journal of Psychology. General SectionRawdon-Smith A. F., Sturdy R. S. -- The effect of adaptation on the differential threshold for sound intensity. -- Brit. J....
The lowest frequency mode, which may correspond to the "boom" sound produced by resonance of the siamang inflated vocal sac, had a mean maximum intensity of 99 dB SPL. These values, which are in excess of the saccular acoustic threshold of about 90 dB at 300 Hz for air conducted sound...
One of the most fundamental functions of the auditory system is the ability to detect the presence of sound. Such abilities are typically measured by a psychoacoustical threshold, that is, the minimal intensity or sound pressure level (SPL) at which one can perceive the presence of sound on ...
Distance and perception of voice. Sound - Frequency, Wavelength and Octave An introduction to the nature of sound with frequencies, wave-lengths and octaves. Sound Intensity Acoustic power of sound per unit area. Sound Intensity, Power and Pressure Levels Introduction to decibel, sound power,...
Fechner law.Let /denote the intensity of a sound .The least intense sound that can be heard is I'=10^(-12) watt/m^2 at a frequency of 1000 cycles/sec(this value is called the threshold of audibility).If L denotes the loudness of a sound,measured in decibels,then L=10log(I/I')...
Inner ear damage and hearing loss after exposure to tones of high intensity. Experimental animals (cats) were exposed to tones of 125, 1000, 2000, and 4000 Hz at sound pressure levels in the range 120 to 157.5 dB, and for durations of one hour (1000, 2000, 4000 Hz) or four hours (...
RMS values are commonly used for physical quantities that oscillate and have an average of zero, like pressure in a sound wave. RMS acoustic pressure normalized to its maximum is not a measure of absolute cry intensity, but rather a measure of constancy of emission; it measures the fraction ...
This kind of information is important, especially for medical applications where the sensitivity of biological tissue to sound intensity is a critical factor in the operation of the system. The analysis in this paper concentrates on various modes of acoustic scanning. The contrast sensitivities and ...