The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 54
The decibel sound rating Tolerable noise levels Sound- absorbing materials Dead and live rooms Sound- isolating construc-. E.P. SERJEANT , Ionization Constants of Acids and Bases , 2nd ed . ( 1970 ) , a laboratory manual containing ...
The decibel sound rating Tolerable noise levels Sound- absorbing materials Dead and live rooms Sound- isolating construc-. E.P. SERJEANT , Ionization Constants of Acids and Bases , 2nd ed . ( 1970 ) , a laboratory manual containing ...
Page 55
Sound- absorbing materials Dead and live rooms Sound- isolating construc- tion Resilient isolation speech and -music- ← speech music → 0.2 concert hall. glass - fibre blankets , clothing , and the many specially made , sound ...
Sound- absorbing materials Dead and live rooms Sound- isolating construc- tion Resilient isolation speech and -music- ← speech music → 0.2 concert hall. glass - fibre blankets , clothing , and the many specially made , sound ...
Page 56
... sounds to be heard must have adequate loudness , there must be a good distribution of sound , and the sounds must be properly blended , with adequate separation for good ar- ticulation of music or speech . Absence of noise . Perhaps the ...
... sounds to be heard must have adequate loudness , there must be a good distribution of sound , and the sounds must be properly blended , with adequate separation for good ar- ticulation of music or speech . Absence of noise . Perhaps the ...
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