Amplitude-modulated tones gain an extra detection cue that noise and FM tones lack

Evidence

The narrowband noise masker has an envelope spectrum that predominantly has components in the range from 0 Hz to the masker bandwidth. Thus, the presence of an on-frequency tonal target signal does not substantially change this envelope spectrum. When, however, the tonal signal is presented off-frequency, new, higher-frequency spectral modulation components are introduced due to the beating between tone and masker that are only masked to a small degree by the inherent masker fluctuations. This modulation cue provides for an additional lowering of off-frequency monaural detection thresholds in excess of the peripheral filtering effect. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3463 (#corroborates, via linked claim)

It has been demonstrated that FS is also important for lexical tone perception in listeners with sensorineural hearing loss (SNHL), but as their hearing loss becomes more severe, their ability to use FS becomes degraded so that their lexical tone perception relies increasingly on E rather than FS cues (Wang et al. 2011 ). The reduced frequency selectivity may underlie the impaired ability to process FS information for SNHL listeners. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380 (#expands, via linked claim)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: An amplitude-modulated tone produces a three-line spectrum; Pitch strength of amplitude-modulated tones depends critically on the carrier-to-modulation frequency ratio; Off-frequency tone detection benefits from envelope modulation cues produced by beating — Dijk, Pim van, Physiology, Psychoacoustics and…, 3463 (+4 more)

Related

• Off-frequency tone detection benefits from envelope modulation cues produced by beating (similarity 0.89)
• AM tones change perceived frequency spread, giving extra detection cues that noise lacks. (similarity 0.83)
• Pitch strength of amplitude-modulated tones depends critically on the carrier-to-modulation frequency ratio (similarity 0.82)
• Increasing sensorineural hearing loss shifts tone perception from fine structure to envelope cues (similarity 0.81)
• Normal hearing relies on fine structure for tones; neural disease forces reliance on envelope (similarity 0.80)
• Auditory modulation frequency selectivity allows inherent masker fluctuations to be separated from beating-induced ones. (similarity 0.80)
• Narrowband noise masking disproportionately impairs hearing-impaired listeners’ amplitude modulation detection (similarity 0.80)
• Speech-shaped noise can carry intelligible masked signals through amplitude modulation (similarity 0.79)
• Fine structure dominates lexical tone perception in normal hearing but is lost in ANSD (similarity 0.79)
• Hearing-impaired listeners derive less benefit from steady tonal maskers once spectral resolution is limited. (similarity 0.79)
• Temporal modulation detection is independent of hearing threshold (similarity 0.79)
• Added masking noise prevents off-frequency cues in hearing experiments (similarity 0.79)
• Frequency-modulation detection relies on the steep lower excitation slope at 27 dB per Bark (similarity 0.79)
• Slow amplitude modulation reduces pure tone pitch strength by ten to twenty percent (similarity 0.79)
• Normal-hearing listeners perceive Mandarin tones via fine structure, impaired ones via envelope (similarity 0.79)

Broader Connections

• Off-frequency tone detection benefits from envelope modulation cues produced by beating #corroborates (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3463
• Amplitude-modulated tones and random-phase harmonic complexes define the two test stimulus families. #expands (0.75)
• Increasing sensorineural hearing loss shifts tone perception from fine structure to envelope cues #expands (0.72) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380
• Speech-shaped noise can carry intelligible masked signals through amplitude modulation #expands (0.70)