Reverberation and intonation interact to impair auditory segregation while noise acts independently
Evidence
The effects of noise and reverberation on double-vowel segregation are not equivalent. The results can be summarized as: (1), There is a strong interaction between F0 modulation (simulating intonated speech) and reverberation to reduce template contrast. (2), There is no interaction between F0 modulation and signal-to-noise ratio. (3), Noise-induced deficits in neural periodicity-based double-vowel segregation are strongly BF-dependent, due to more total (masking) noise power passed by higher-BF filters. (4), Reverberation impairs neural segregation of intonated double vowels independent of BF, but has only marginally detrimental effects on segregation of double vowels with steady F0s. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5025
Categorization
Category: Causal Relationships
- XREF: Connects to the broader auditory scene analysis literature and the role of fundamental frequency (periodicity) in stream segregation — links to how speech perception researchers model cocktail-party listening.
- SEED: Interesting angle for a piece on why we lose track of conversations in big echoing rooms but not in noisy ones — the conflation of ‘background noise’ with ‘reverberation’ in everyday complaints.
Related
- Reverberation and natural pitch modulation combine to impair vowel segregation more than either alone (similarity 0.93)
- Reverberation hampers speech segregation only for intonated vowels, while noise hampers it regardless. (similarity 0.93)
- Noise and reverberation damage speech segregation through different neural mechanisms (similarity 0.91)
- Reverberation disrupts periodicity-based speech segregation only when pitch is intonated (similarity 0.89)
- Periodicity differences segregate concurrent sounds only under idealized quiet conditions (similarity 0.87)
- Reverberation degrades neural pitch coding far more for intonated than steady speech (similarity 0.86)
- Reverberation erases formant information for intonated vowels but noise only degrades higher formants (similarity 0.86)
- Noise and reverberation distort concurrent speech perception through different mechanisms (similarity 0.85)
- Reverberation degrades F0-modulated speech cues more than static-pitch cues, while noise degrades both equally (similarity 0.85)
- Auditory stream segregation thresholds depend on note rate and frequency separation (similarity 0.84)
- Reverberation and broadband noise affect neural coding differently. (similarity 0.84)
- Reverberation masks consonant stops and blurs the formant transitions essential to speech (similarity 0.83)
- Periodicity-based sound segregation begins at the auditory brain stem (similarity 0.82)
- Normal-hearing listeners tolerate moderate reverberation far better than noise (similarity 0.82)
- Auditory cortex achieves noise-and-reverberation-invariance that brainstem processing lacks. (similarity 0.82)