ミキシング・エンジニアによる無響室録音音源への電子残響の最適付加レベルについての調査

The most preferable reverberation level for the recording of orchestra sounds by recording engineers was studied by a psycho acoustical experiment. The most preferable electric reverberation level to the orchestral sounds recorded in an anechoic chamber was measured by a method of adjustment. A physical index of C (Clarity Index) was used to measure the energy ratio between the direct sound and the indirect sound of the adjusted sounds. The obtained values of C from the most preferable reverberation were different among the music pieces. The reverberation time and the reproduction method (monophonic, stereophonic or quadraphonic) did not affect the C value.