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Design and Measurement of Short Reverberation Times at Low Frequencies in Talks Studios

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Various types of acoustic treatment have been used in the new talks studios of the Danish Broadcasting Corporation. For verification, reverberation times of about 0.1-0.2s were measured in one-third octave bands from 80 Hz to 8 kHz using a new time-reversed analysis technique. It is demonstrated that the ringing of the filters would have introduced errors at low frequencies if traditional forward analysis had been used.

JAES Volume 39 Issue 1/2 pp. 47-57; February 1991
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AES - Audio Engineering Society