Aural Rehab 11-20-07 - Ch. 6 11/20/07 Speech...

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Ch. 6 – 11/20/07 Speech Characteristics Early Vocalizations o D/HOH babies vocalize like H babes until about 6 months o Then – there is delay canonical babbling and less consonant variations. Why? Do not hear themselves Mild to moderately severe hearing loss o Usually highly intelligible o Misarticulations of high frequency single consonants and blends Affricates and fricatives o Error types are usually substitutions with few distortions o Errors appear developmental and resemble those made by younger hearing children with phonological or artic delay o Demonstrate typical phonological processes and normal sequence of phoneme acquisition. o Vowels and suprasegmentals usually normal o Assess with typical artic/phonology tests Caution: vocabulary knowledge Prelingual Severe to Profound HL o Difficulties with consonants, vowels and voice quality o Respiration and phonation may be effected o Resonation may be used as feedback Hypo- and hyper-nasality Cul-de-sac resonance – sounds like they are talking way up in the back of their head. o Suprasegmentals may be effected
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Rate (vowel distortion might effect the rate), intensity and pitch (can feel, feedback) o Vowel neutralization - schwa Why? o Because you need to be able to hear the formant transitions from the second and third formant. Vowel and diphthong confusions Nasalization of vowels Why? o Feedback Voiced/voiceless confusion d/t, g/k Omission, substitution, and distortion of consonants Omission of velars (k,g, n), consonants in blends, and final consonants is common. o Assess intelligibility Extremely subjective! “X is moderately (or other qualifier) intelligible (or unintelligible) to familiar (or unfamiliar) listeners when the context is known (or unknown). o Sound production Typical artic/phonology tests Ling Phonetic Level Evaluation Developing good vocal quality Sounds o Step 1 Consonants: /b, p, f, v, m, h, th, th/ visable and front of mouth
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o Step 2 Consonants: /d, t, sh, zh, s, z, n, j, l/ Not so visable and alveolar and palatal o Step 3 Consonants: /g, k, ch, dg, ng/ Not visable and velar o Blends 2 work books – do therapy based on the results of the tests Non segmental aspects (suprasegmentals) o “segmental” = phonemes CID Phonetic Inventory Ling Phonological Level sentences o Suprasegmentals and voice Subjective assessment based on clinician perception Instrumentation Postlingual Profound HL o Gradual deterioration in speech intelligibility Individaul can no longer monitor her/himself Reduced feedback loop o Changes in voice quality o Vowel neutralization o Changes in /s/ and voiceless “sh” o Voiced/voiceless substitution /r/ for /w/ substitutions o Final consonant omission o Management – speech conversation
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This note was uploaded on 04/22/2008 for the course COMD 393 taught by Professor Ciocci during the Winter '07 term at Bridgewater State University.

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Aural Rehab 11-20-07 - Ch. 6 11/20/07 Speech...

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