In Reply to: Re: Some simple math posted by abc on May 11, 1999 at 03:24:20:
This goes beyond the equal loudness curve as that compares the loudness level perception to a standard frequency of 1khz. While the perceived threashold for a difference may be less at the lower frequencies compared to the higher frequencies, the band width that this difference occurrs is as important in tha a broadband difference is more noticable than a narrow band difference where a larger difference is needed.
Perhaps the David Clark paper, 'High Resolution Subjective Testing Using a Double-Blind Comparator,' JAES May 82, pg 330-338, fig 2, will shed some light on this.
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