Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 27/10/2025, 22:31
Edworthy, J., Loxley, S., & Dennis, I. (1991). Improving auditory warning design: Relationship between warning sound parameters and perceived urgency. Human Factors, 33(2), 205–231.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 11/06/2021, 06:30
Some results affecting perceived urgency and related to c.2sec sound bursts comprising c.200ms pulses include: a) pulses with a fast 20ms onset and offset are perceived to be more urgent; b) pulses with short onset and long offset are less urgent than those with long onset and short offset and c) the more random the harmonic series the greater the perceived urgency. A possible explanation for b) is that long onset and short offset amplitude envelopes are typical of approaching objects while short onset and long offset envelopes are typical of receding objects. (from Ballas (Ballas 1994))
