ref info note ruk am condition 18 03 14 LM

The RUK AM condition specifies that the estimate of the peak-to-trough of the AM noise is the area under the main peak in the dotted line in Figure 4, including frequencies from 10% below the peak frequency to 10% above the peak frequency. [...] The following figure is a plot of the RUK value for the AM level superimposed onto the original time plot of the data. [...] A plot of the average RUK amplitude A values as determined by the RUK AM condition with a “best fit” linear regression line to find the average of the averages following 4(h) and 4(g) of the proposed RUK AM condition. [...] In addition to concerns at the validity of the listening test results, the peak-to- trough values used for the listening tests are not the same as the peak-to-trough levels obtained by following the RUK AM condition procedures. [...] The data in Figure 9.4 and Figure 9.5 is the basis for the justification of the metric set in the RUK AM condition – see page 4 of “The Development of a Penalty Scheme…”.