Interaural time and intensity cues can cancel each other in direction perception.
Evidence
Because both intensity and delay cues are used for the perception of sound source direction, one might expect the mechanisms to be in similar areas of the brain and linked together. If this were the case, one might also reasonably expect that there was some overlap in the way the cues were interpreted such that intensity might be confused with delay and vice versa in the brain. This allows for the possibility that the effect of one cue, for example delay, could be canceled out by the other, for example intensity. This effect does in fact happen and is known as “interaural time difference versus interaural intensity difference trading.” In effect, within limits, an interaural time delay can be compensated for by an appropriate interaural intensity difference, as shown in Figure 2. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 740
Categorization
- DEFINE: Introduces the concept of interaural time-versus-intensity trading and the mechanism it reveals.
- XREF: connects to: Directional hearing rests on interaural time and intensity differences. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 704; Interaural level differences and time shifts trade off to cancel each other — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 740; Intensity and delay directional cues can cancel each other out in the brain (+2 more)
Broader Connections
- Interaural level differences and time shifts trade off to cancel each other
#corroborates(0.95) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 740 - Intensity and delay directional cues can cancel each other out in the brain
#corroborates(0.92) - Interaural level differences and time shifts trade off to control lateralization
#corroborates(0.90) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1431 - Mixing intensity and delay stereo cues produces spurious cues that confuse the ear
#expands(0.80)