Reverberation hampers speech segregation only for intonated vowels, while noise hampers it regardless.

Evidence

In line with human psychoacoustic data, we find reverberation significantly impairs segregation when vowels have an intonated pitch contour, but not when they are spoken on a monotone. In contrast, noise impairs segregation independent of intonation pattern. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5022

Categorization

Category: Factual Claims

• XREF: Connects to the reader’s cocktail-party and auditory scene analysis interests; the differential effect of reverberation vs. noise on intonation is a specific mechanism contrast worth holding onto.

Related

• Noise and reverberation damage speech segregation through different neural mechanisms (similarity 0.94)
• Reverberation and intonation interact to impair auditory segregation while noise acts independently (similarity 0.93)
• Reverberation disrupts periodicity-based speech segregation only when pitch is intonated (similarity 0.92)
• Reverberation and natural pitch modulation combine to impair vowel segregation more than either alone (similarity 0.88)
• Reverberation degrades neural pitch coding far more for intonated than steady speech (similarity 0.85)
• Reverberation erases formant information for intonated vowels but noise only degrades higher formants (similarity 0.85)
• Noise and reverberation distort concurrent speech perception through different mechanisms (similarity 0.85)
• Periodicity differences segregate concurrent sounds only under idealized quiet conditions (similarity 0.83)
• Reverberation and broadband noise affect neural coding differently. (similarity 0.82)
• Reverberation masks consonant stops and blurs the formant transitions essential to speech (similarity 0.82)
• Normal-hearing listeners tolerate moderate reverberation far better than noise (similarity 0.82)
• Reverberation degrades F0-modulated speech cues more than static-pitch cues, while noise degrades both equally (similarity 0.81)
• Auditory cortex achieves noise-and-reverberation-invariance that brainstem processing lacks. (similarity 0.81)
• Noise and reverberation both mask consonants, which are about 20 dB quieter than vowels (similarity 0.81)
• Auditory stream segregation thresholds depend on note rate and frequency separation (similarity 0.80)