- Agradualdecreaseinforceorloudness.graduallydiminishinginbrightnessorloudnessorstrength.Someofthetraditionalpsychoacousticconcernsinvolvetheperceptionofpitch,loudness,volumeandtimbre.Thesechangesinperceivedloudnessmayhelpyoutospotinaudiblefrequencycha...
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