The global loudness of av arying intensity sound is greater when the intensity increases than when it decreases. This global loudness asymmetry wasfound to be larger for pure tones than for broadband noises. In this study, our aim wastodetermine whether this difference between pure tones and noises is due to the difference in band-width between sounds or to the difference in the strength of the sensation of pitch. The loudness asymmetry was measured for broadband and for narrow-band signals that do or do not elicit asensation of pitch. The asymmetry wasg reater for sounds that elicit as ensation of pitch whatevert heir bandwidth. The loudness model for time varying sounds [1] predicted well the asymmetry for the broadband noise that does not elicit asensation of pitch and for am ulti-tonal sound. Fort he other sounds the asymmetry wasg reater than predicted. It is known that loudness and pitch interact. The difference in asymmetry between sounds that elicit pitch and sounds that do not elicit pitch might be due to this interaction.