Audibility alone cannot fully account for speech-in-speech intelligibility loss in hearing-impaired listeners
Evidence
Hearing loss has been shown to reduce speech understanding in spatialized multitalker listening situations, leading to the common belief that spatial processing is disrupted by hearing loss. This paper describes related studies from three laboratories that explored the contribution of reduced target audibility to this deficit. All studies used a stimulus configuration in which a speech target presented from the front was masked by speech maskers presented symmetrically from the sides. Together these studies highlight the importance of adequate stimulus audibility for optimal performance in spatialized speech mixtures and suggest that reduced access to target speech information might explain a substantial portion of the “spatial” deficit observed in listeners with hearing loss. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1719 (
#complicates, via linked claim)
Categorization
- corroborated: 2 independent passages support this claim
- XREF: connects to: Per-frequency audiogram-based gain can equate audibility across listeners in speech research.; Speech-in-speech intelligibility depends on non-auditory factors beyond audibility alone; Audibility equalization reduces but cannot eliminate hearing-loss effects on speech-in-speech — Dijk, Pim van, Physiology, Psychoacoustics and…, 1726 (+8 more)
Broader Connections
- Speech-in-speech intelligibility depends on non-auditory factors beyond audibility alone
#corroborates(0.93) - Reduced target audibility, not spatial processing loss, explains much of the hearing-loss speech deficit
#complicates(0.78) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1719 - Audiometric pure-tone thresholds predict speech intelligibility even after sensitivity adjustment
#complicates(0.74)