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RE: Measurements are not equivalent to perception

>>The response curves at the different locations show differences of up to 5 dB, if you had two loudspeakers having two of these different curves as on-axis response you would not doubt for a second that they will sound different.<<

>Yes, but as Toole points out, the brain is remarkably good at deconvolving the contributions of the room and the original source.<


The point I wanted to make is that the sound at different parts of the concert hall is different, so there is no such thing as a live concert hall reference sound. If you read those parts of Meyer's, "Acoustics and the performance of music" (Verlag Das Musikinstrument 1978) that relate to the sound field at different part of the hall, with reference to the different instrument sections, it becomes quite clear from text and measurements (frequency response, octave level models, sonagrams, octave level analyses) that there are perceptible differences. The reference is hence a moving target.

Klaus


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