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SPEECH PERCEPTION

HEAR INDIANA

10/3/14

Jane@JaneMadell.com

www.JaneMadell.com 1

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SPEECH PERCEPTION

HEAR INDIANA

10/3/14

Jane@JaneMadell.com

www.JaneMadell.com 2 u25r-ð6 Hearing is a first-order event for the development of spoken communication and literacy skills. Anytime the word 䇾hearing䇿 is used, think 䇾5-7-ffiorj )r5-ð development䇿!! Acoustic accessibility of intelligible speech is essential for brain growth. Signal-to-Noise Ratio is the key to hearing intelligible speech. Our early intervention programs and classrooms must take into consideration the listening capabilities and acoustic access of our children. !/<=%/04% $JG51N%_)``ab%

PARENTSCHILDREN

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Risley, T.T (1995) Meaningful Differences in the Everyday Experience of Young American Children, Baltimore: Paul H. Brooks Publishing Co, Inc

Appropriate

Technology

"0";E73"'?%

WHAT DOES THE TECHNOLOGY NEED TO BE DOING TO

MEET THE NEEDS OF ACOUSTIC ACCESSIBILITY?

The child needs to hear throughout the frequency range

6000 and 8000 Hz really do matter

Missing high frequencies results in missing grammatical markers for pluralization , possessives, and missing non-salient morphemes (eg morphemes that are not stressed during conversation -eg prepositions)

The child needs to hear at a soft enough level

Soft speech is about 30-35 dBHL.

If a child cannot hear soft speech, she will not hear

Peers in the classroom or on playground

Will not 䇾overhear䇿 conversation and will have limited incidental learning

Will have reduced language and literacy skills

Moeller (2011) reported that in her research 40% if children fit with hearing aids were underfit

POSITION

VOWEL 1

ST

FORMANT

2 ND

FORMANT

Front Who W ou ld Kn o w M o re u o 430
540
760
840
1170
1410
1250
1060

Middle Of

Art M u st L ear n a 1030
1020
850
580
1370
1750
1590
1740
Back And Th e n T a ke H i s Ea se ae e i 1010
690
610
530
370
2320
2610
2680
2730
3200

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SPEECH PERCEPTION

HEAR INDIANA

10/3/14

Jane@JaneMadell.com

www.JaneMadell.com 3

ConsonantFrequencyBands

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www.JaneMadell.com

SPEECHINTELLIGIBILITY

WHAT DOES INTELLIGIBLE SPEECH

LOOK LIKE?

UEvery speech sound needs to be audible

UAt typical and soft conversational

levels

UAt distances and up close

U䇾Overhearing䇿 is critical

THE AUDIOLOGY FRUIT

Mueller And

Killion - 2010

Speech Audibility

(R) Right ear aided 97% (O)Unaided 55%

SPEECH PERCEPTION

HEAR INDIANA

10/3/14

Jane@JaneMadell.com

www.JaneMadell.com 4 mcy zO mcgg fff ffuO kbOOmu oOcyT %%%%:7""9 %7"$9"7?&E'%?":?&'D%quotesdbs_dbs28.pdfusesText_34

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