Speech discrimination requires intact frequency resolution

Evidence

Each series contains four tone pairs of different duration and frequency difference: First 500 ms and 10 ms at the smaller frequency difference, and then 10 ms and 500 ms at the larger frequency difference. The following frequencies are used: 2000 Hz, 2010 Hz, 2040 Hz; 500 Hz, 505 Hz, 525 Hz. For example, a frequency difference of 10 Hz between 2000 Hz and 2010 Hz can be discriminated at 500 ms (1) but not at 10 ms (2). On the other hand, a frequency difference of 25 Hz between 500 Hz and 525 Hz can hardly be discriminated at 10 ms (7) but is clearly audible at 500 ms (8). — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 3313 (#corroborates, via linked claim)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: Speech discrimination requires five distinct auditory features — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1868; Speech perception requires both detection and discrimination of sound components; Brief tone durations severely impair frequency discrimination — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 3313 (+6 more)

Related

• Brief tone durations severely impair frequency discrimination (similarity 0.90)
• Speech discrimination requires five distinct auditory features (similarity 0.89)
• Frequency discrimination stems from steep filter slopes plus 1 dB level sensitivity (similarity 0.86)
• Impaired frequency selectivity directly causes poor speech discrimination (similarity 0.85)
• Temperament matters less in fast passages where frequency is ill-defined (similarity 0.84)
• Speech perception requires both detection and discrimination of sound components (similarity 0.84)
• Frequency discrimination is finest around 0.3% near 500 Hz. (similarity 0.83)
• Best auditory frequency resolution is about one-sixth octave at moderate levels (similarity 0.83)
• Human pitch discrimination far exceeds the ear’s filter resolution (similarity 0.83)
• Reduced frequency selectivity hurts speech perception less than reduced audibility does (similarity 0.82)
• Auditory detection and discrimination are distinct abilities that can diverge (similarity 0.82)
• Frequency discrimination depends on basilar membrane displacement separation (similarity 0.82)
• Detecting sounds and discriminating between them are distinct hearing abilities. (similarity 0.81)
• Electrode pairs are judged discriminable only when performance exceeds chance (similarity 0.81)
• Frequency importance functions weight speech audibility by band significance (similarity 0.80)

Broader Connections

• Speech perception requires both detection and discrimination of sound components #expands (0.85)
• Brief tone durations severely impair frequency discrimination #corroborates (0.80) — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 3313
• Human pitch discrimination far exceeds the ear’s filter resolution #qualifies (0.80)
• Reduced frequency selectivity hurts speech perception less than reduced audibility does #complicates (0.75) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 575
• Deactivating CI electrodes worsens spectral resolution rather than improving speech perception #corroborates (0.75)
• Within-speech forward masking hampers consonant identification for hearing-impaired listeners #expands (0.72)
• Sharply filtered speech violates standard speech-intelligibility-index SNR assumptions #complicates (0.72)