A computer program is used to calculate loudness levels in order to determine the reproduction levels of loudspeakers during listening tests. The calculation results are compared with the results of listening tests. Pink noise and music, reproduced by various loudspeakers, are used as the stimuli. Subjective listening tests show that the A-weighting can result in misleading conclusions. The use of Zwicker`s loudness model appears to be the best technique for adjustment of the inter-loudness levels of loudspeakers during listening tests.
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