Hearing integrates sound intensity over a fixed 200 ms window

Evidence

The loudness percept requires some time to build up. The loudness level caused by a 2-kHz tone burst is shown in Figure 10.16. When the length of the burst decreases from 100 ms, the loudness decreases 10 phones each time the length is decreased to one tenth, indicating that the loudness percept is formed by integrating sound energy over time. This operation performed by our hearing is called temporal integration. For a sound burst lasting longer than 200 ms, loudness no longer increases (Fastl and Zwicker, 2007). — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1171 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Hearing thresholds are defined for steady tones lasting over 100 ms; Hearing forms loudness by integrating sound energy over about 100-200 ms — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1171; Sustained sound beyond about 200 ms adds no further loudness (+5 more)

Broader Connections

• Hearing forms loudness by integrating sound energy over about 100-200 ms #corroborates (0.95) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1171