Short sounds decay in perceived loudness faster than long sounds.

Evidence

The specific loudness shown in the middle panel increases rapidly, matching the stimulus level, but decreases with a time constant that depends on the length of the corresponding stimulus. With short excitation signals, the specific loudness decreases rapidly, and with longer signals, the decrease is notably slower. The specific loudness represents the excitation in the inner ear, and the time integrated total loudness is assumed to be formed at higher stages of processing. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1178

Categorization

• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1178