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Audiometric analysis as a predictor of speech intelligibility
British Journal of Audiology
|May 1, 1977
Summary
The audiogram effectively predicts speech intelligibility in children with profound hearing loss. Specific hearing loss patterns and frequencies correlate significantly with how well speech can be understood.
Area of Science:
- Audiology
- Speech-Language Pathology
- Pediatric Hearing
Background:
- Historically, audiograms focused on speech reception.
- Montgomery (1967) proposed audiogram use for speech production, particularly in profoundly deaf children.
Purpose of the Study:
- To evaluate the audiogram's utility in predicting speech intelligibility.
- To explore the relationship between hearing loss patterns and speech production in deaf children.
Main Methods:
- Speech intelligibility was assessed by listeners completing sentences spoken by deaf schoolchildren.
- Analyses included hearing loss patterns, individual frequencies, and frequency combinations.
- The simple mean of five frequency losses around 1,000 Hz was calculated.
Main Results:
- Subjects could be categorized into four groups based on hearing loss, with divisions at 65 dB and 105 dB.
- Five distinct speech intelligibility levels were identified when using the mean hearing loss at five frequencies centered on 1,000 Hz.
Conclusions:
- The audiogram is a valuable tool for predicting speech intelligibility in profoundly deaf children.
- Specific audiometric configurations correlate with varying degrees of speech production ability.