The Science of SoundA text for a one-semester, first or second year course on acoustics in general and musical acoustics in particular. After covering basic principles, Rossing (physics, Northern Illinois U.) explains more advanced topics such as the perception and measurement of sound, the human voice, and environment |
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Page 86
Thomas D. Rossing. sounds , we can define a decibel scale of sound level by comparing sounds to a reference sound with a pressure amplitude Po = 2 × 10-5 newtons / meter2 , assigned a sound pressure level of 0 dB . Thus , we define sound ...
Thomas D. Rossing. sounds , we can define a decibel scale of sound level by comparing sounds to a reference sound with a pressure amplitude Po = 2 × 10-5 newtons / meter2 , assigned a sound pressure level of 0 dB . Thus , we define sound ...
Page 90
... sound pressure level , sound power level , and sound intensity level , since all three are ex- pressed in decibels . Nearly always it is sound pressure level that is measured , and from it the other two are calculated . Sound power level ...
... sound pressure level , sound power level , and sound intensity level , since all three are ex- pressed in decibels . Nearly always it is sound pressure level that is measured , and from it the other two are calculated . Sound power level ...
Page 603
Thomas D. Rossing. 30.2 Noise levels 603 30.2 NOISE LEVELS The sound pressure level L , decreases as we move away from the sound source . In a free field ( which may exist outdoors or in an anechoic room ) , the sound pressure level ...
Thomas D. Rossing. 30.2 Noise levels 603 30.2 NOISE LEVELS The sound pressure level L , decreases as we move away from the sound source . In a free field ( which may exist outdoors or in an anechoic room ) , the sound pressure level ...
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Common terms and phrases
A-weighted absolute pitch Acoust air column amplifier amplitude audio auditory basilar membrane bass bell brass instruments Chapter circuit clarinet cochlea complex tone consonant curve difference tone distortion drum electrical electronic energy equal temperament example f₁ filter flow formant Frequency Hz fundamental graph guitar harmonics Helmholtz Helmholtz resonator impedance increases input intervals length lips listening loudness loudspeaker low frequency magnetic microphone modes of vibration modulation motion N/m² noise notes octave oscillator output partials phase piano pitch played pulse pure tones quency radiated range ratio recording reed reverberation Rossing scale Section semitone shown in Fig signal simple harmonic motion sound level sound power sound power level sound pressure level sound waves speaker spectra spectrum speech speed string synthesizer tape timbre tion tone holes top plate tube tuning velocity violin vocal cords vocal tract voice voltage vowel sounds waveform