Acoustics |
Common terms and phrases
absorption acoustic compliance acoustic impedance acoustic mass acoustic resistance analogous circuit articulation index assumed attenuation average band barium titanate cavity circuit of Fig cone crystal curve cycles per second decibels determine diameter diaphragm direct-radiator loudspeaker directivity index directivity pattern distance electrical element enclosure energy density equal equation example frequency range horn impedance-type infinite baffle level in decibels loudness level low frequencies measured mechanical impedance microbar microphone mks acoustic ohms mks mechanical mobility mobility-type mode of vibration noise normal open-circuit voltage particle velocity piston plane power level quantity quency radiation impedance radius ratio reactance resonance frequency response reverberant Rochelle salt room constant shown in Fig side sound energy density sound field sound pressure level sound source sound wave spherical square meter surface Table temperature throat transducer tube voice coil volume velocity wall wavelength zero Рос