Binaural spatial benefit and SNR degradation act independently on intelligibility
Evidence
A two-way repeated-measures ANOVA with factors of spatial condition (collocated or separated) and SNR criterion shows a significant effect of spatial condition [F(1,5) = 125.68, p < 0.001], a significant effect of SNR criterion [F(7,35) = 34.45, p < 0.001], and no significant interaction of spatial condition and SNR criterion [F(7,35) = 1.36, p = 0.253]. The absence of interaction between spatial condition and SNR criterion confirms the constant spatial release from masking that could be observed in Fig. 2 , bottom. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1659
Categorization
Category: Causal Relationships
Related
- Spatial release from masking stays constant across all SNR criteria tested (similarity 0.86)
- Spatially separated sources reveal speech components audible only via binaural processing (similarity 0.85)
- Spatially separated speech sources improve intelligibility through binaural release from masking. (similarity 0.83)
- Binaural detection advantages do not drive the spatial speech benefit in multitalker settings (similarity 0.83)
- Discarding low-SNR speech components affects binaural intelligibility (similarity 0.83)
- Binaural advantage is modeled as a within-band noise-floor reduction improving SNR (similarity 0.82)
- Spatial release from masking persists even when target speech components are selectively discarded (similarity 0.82)
- Both auditory and cognitive factors determine intelligibility in noise (similarity 0.81)
- Degraded binaural processing explains older listeners’ difficulty separating speech from spatial noise. (similarity 0.81)
- Spatial separation reduces inter-source confusion rather than restoring lost signal (similarity 0.81)
- Speech-in-speech intelligibility depends on non-auditory factors beyond audibility alone (similarity 0.80)
- Directional source allocation, not binaural unmasking, explains spatial release (similarity 0.80)
- Improved intelligibility produces measurable cortical differences beyond mere acoustic responses (similarity 0.80)
- Binaural masking release is modeled as within-band noise floor reduction (similarity 0.80)
- Loss of neural synchrony can impair speech-in-noise perception. (similarity 0.80)