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Transmission and Propagation
Acoustical Apparatus and lnstruments
3 other sections not shown
A-weighted A-weighted sound abbreviation absorption coefficient acoustic impedance American National Stan American National Standard amplitude architectural acoustics audiometer average sound level bandwidth base damping dard decibel dB Device displacement distance earphone effective acoustical center electric electroacoustic electroacoustic transducer equal filter force free-field frequency band frequency weighting function hearing threshold hertz hertz Hz impact sound input instantaneous interval logarithm loudness loudspeaker lSO/TC magnetostriction masking measured medium meter per second microphone normal NOTE-ln NOTE-See NOTE-The NOTES 1 ln octave oscillation output particle velocity pascal plane propagation quency quotient reference rating reference sound pressure resonance reverberation Sabine absorption sensitivity shock signal sinusoidal sonar sonic sound energy sound field Sound Power Levels sound pres sound pressure level sound source sound transmission sound transmission class sound wave specific acoustic specified direction specified frequency speed of sound square surface symbol time-mean-square tion trans transducer transducer for sound transmission loss vibration voltage