A new method of measuring normal incident sound absorption characteristics of materials using acoustic tube
スポンサーリンク
概要
- 論文の詳細を見る
A new method is presented for the measurement of normal incident sound absorption characteristics of materials using an acoustic tube. As the measuring principle, by measuring the signals of sound pressure at two points in the acoustic tube using two microphones, and by processing these signals either in time domain or in frequency domain, the incident wave and the reflected wave are equivalently separated. For the sound source, any of pure tone, random noise or impulse can be used in this measuring method. As a result of the experimental study by making measurements on two types of sound absorbing materials, it is ascertained that almost the same results can be obtained by this method as those measured by the ordinary standing wave method.
- 社団法人日本音響学会の論文
著者
-
Tachibana Hideki
Institute Of Industrial Science University Of Tokyo
-
Suzuki Chiaki
Institute Of Industrial Science University Of Tokyo
-
Yano Hiroo
Institute of Industrial Science,University of Tokyo
-
Yano Hiroo
Institute Of Industrial Science University Of Tokyo
関連論文
- Loudness and noisiness of a repeated impact sound : Results of round robin tests in Japan(II)
- Evaluation of the loudness of impulsive sounds using sound exposure level based on the results of a round robin test in Japan
- Sound field simulation for stage acoustics using 6-channel system
- 演奏者に対する初期反射音の効果に関する基礎実験
- 心理音響学に基づく床衝撃音評価方法の研究
- Acoustic survey of auditoriums in Europe and Japan
- Sound field simulation method by combining finite difference time domain calculation and multi-channel reproduction technique
- 6-channel recording/reproduction system for 3-dimensional auralization of sound fields
- Visualization of sound propagation and scattering in rooms
- A sound field simulation system for the study of ensemble performance on a concert hall stage
- Scale model experiment on room acoustics by hybrid simulation technique
- Correctioon for the effect atomspheric sound absorption on the sound absorption coefficients of materials measured in a reverberation room
- Basic study on active noise barrier
- Report on the International Symposium on Active Control of Sound and Vibration, in Tokyo
- Experimental study on the evaluation of stage acoustics by musicians using a 6-channel sound simulation system
- Visualization of sound reflection and diffraction using finite difference time domain method
- A new method of measuring normal incident sound absorption characteristics of materials using acoustic tube
- Noise source identification on rolling tires by sound intensity measurement
- Definition and measurement of sound energy level of a transient sound source
- Sound power levels of road vehicles measured by a new method using a reverberant tunnel
- Effects of room shape and diffusing treatment on the measurement of sound absorption coefficient in a reverberation room
- Difference in acoustic effect of sound diffusers due to room shapes
- Numerical study on sound absorption characteristics of resonance-type brick/block walls