Inverting signal phase at one ear vastly releases speech from masking.
Evidence
In his experiment, the same speech signal was presented to the left and right ears. In one condition, the speech signal was homophasic (identical at the two ears) and in the other the speech signal was inverted at one of the ears (antiphasic). A homophasic noise stimulus was presented simultaneously with the speech in both of the conditions. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1550
Categorization
- DEFINE: Introduces homophasic versus antiphasic stimulus configurations central to the binaural masking level difference paradigm.
- corroborated: 2 independent passages support this claim — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1550
- XREF: connects to: Spatial release from masking persists even when target speech components are selectively discarded — Dijk, Pim van, Physiology, Psychoacoustics and…, 1619; Adding a matched noise to the opposite ear can lower masking.; Interaural noise correlation inversely drives the magnitude of binaural release from masking. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1562 (+1 more)
Broader Connections
- Reversing a tone’s phase in one ear lowers its detection threshold in noise
#exemplifies(0.88) - Interaural noise correlation inversely drives the magnitude of binaural release from masking.
#expands(0.85) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1562