AES New York 2007
Saturday, October 6, 7:00 pm — 8:00 pm
The Richard C. Heyser distinguished lecturer for the 123rd AES Convention is Leo Beranek.
Aspects Of Concert Hall Acoustics
Listening to music performances in approximately 200 venues, consulting with architects on a number of them and assembling measured acoustical data on a hundred of them, have given the speaker a broad base for understanding the relative importance of the various acoustical parameters that either are being measured or are proposed for the evaluation of acoustics of spaces for music. The acoustical parameters treated are: Apparent Source Width (ASW), Listener Envelopment (LEV), Lateral Fraction (LF), Interaural Cross-Correlation Coefficient (IACC), Reverberation Time (RT30), Early Decay Time (EDT), Initial-Time-Delay Gap (ITDG), Strength (G) (and various substrengths including early and late relative levels, and early and late lateral relative levels), Perceived Bass, Texture, Just Noticeable Differences, and Instrumentation. The extents to which these parameters are being met in halls of different architectural designs are presented. Finally, the relation of these parameters to living-room listening venues will be touched on.
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