Reverberation erases formant information for intonated vowels but noise only degrades higher formants

Evidence

With reverberation, there are no formant related peaks and troughs remaining in the modulated-F0 case (Fig. 5e ), although a clear formant-related pattern of periodicity-tagged discharge rate remains in the static-F0 case in reverberation (Fig. 5b ). Information about higher formants is degraded in the presence of noise; however, formant-related peaks in periodicity-tagged discharge rate remain in the first-formant region for both staticand modulated-F0 vowels (Fig. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5047

Categorization

• XREF: Links to articulatory/acoustic phonetics: F1 is amplitude-robust while F2/F3 depend on spectral detail that reverberation smears.