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Evaluation of decay curves
Annex B informative Binaural auditorium measures derived from impulse responses
Annex auditoria auditorium background noise bands the bandwidth calculated coverage decay curve decay record decibels derived from impulse determined Dirac delta function dummy head dynamic range ear canals Ensemble averaging evaluation exponential averaging device figure-of-eight pattern microphone filter delay free field frequency band IACC impulse response method initial level integrated impulse response integrated squared impulse International Standard interrupted noise method lateral energy fractions least 35 dB linear averaging loudspeaker maximum measurement of reverberation Measurement positions Measurement procedure Measurement uncertainty microphone positions midband frequencies noise floor NOTE number of measurements obtained octave bands one-third-octave bands pressure exposure level quantities Real heads receiver positions reverberation room Reverberation time measured room acoustic rooms for speech safety curtain signal to noise slope sound power level sound pressure exposure sound pressure level source and microphone source positions spatial average spectrum speech and music squared impulse response test report values