Speech perception is the process by which the sounds of a language are heard, interpreted and understood. ‘Speech perception’ is defined as the receptive language process in which the input signal is speech. ‘Hearing’ is one of the sensory processes that may be used in speech perception. Thus “speech perception is a particular form of receptive language processing and hearing is a particular sensory modality contributing to speech perception” (Marschark & Spencer, 2011).
Speech audiometry has become a fundamental tool in audiological assessment and must be performed regularly using reliable and valid clinical assessment procedures appropriate for different population. There are two common measures in speech audiometry for the evaluation and diagnosis of auditory disorders. The first is the “Speech Recognition Threshold (SRT)” i.e. the thresholdfor the recognition of speech stimuli to provide an estimate of auditory sensitivity, as measured by pure-tone audiometry. The second is “Speech Identification score (SIS)” i.e. the maximum speech recognition performance in percentage obtained for speech stimuli presented at comfortable supra-threshold level (Gelfand, 2007).
The SIS testing has been used in every phase of audiology to describe the extent of communication difficulties caused by hearing impairment; differentially …show more content…
Sounds are by their nature dynamic, changing over time in terms of level and spectral content. In general, consonants contribute primarily to speech intelligibility and vowels to that of the power of speech (Niemeyer, 1967). Hence, it is important that one identifies consonants appropriately if have to understand speech better. This requires the identification not only the place of articulation but also the manner of articulation which in turn are cued by dynamic filter cues like burst, closure duration and transition (Dorman, Studdert-kennedy & Rapheal,
Speech audiometry has become a fundamental tool in audiological assessment and must be performed regularly using reliable and valid clinical assessment procedures appropriate for different population. There are two common measures in speech audiometry for the evaluation and diagnosis of auditory disorders. The first is the “Speech Recognition Threshold (SRT)” i.e. the thresholdfor the recognition of speech stimuli to provide an estimate of auditory sensitivity, as measured by pure-tone audiometry. The second is “Speech Identification score (SIS)” i.e. the maximum speech recognition performance in percentage obtained for speech stimuli presented at comfortable supra-threshold level (Gelfand, 2007).
The SIS testing has been used in every phase of audiology to describe the extent of communication difficulties caused by hearing impairment; differentially …show more content…
Sounds are by their nature dynamic, changing over time in terms of level and spectral content. In general, consonants contribute primarily to speech intelligibility and vowels to that of the power of speech (Niemeyer, 1967). Hence, it is important that one identifies consonants appropriately if have to understand speech better. This requires the identification not only the place of articulation but also the manner of articulation which in turn are cued by dynamic filter cues like burst, closure duration and transition (Dorman, Studdert-kennedy & Rapheal,