vocal function exercises speech therapy pdf

vocal function exercises speech therapy pdf

Preliminary data on two voice therapy interventions in the treatment of presbyphonia. Perceptual signs and symptoms of dysphonia include. The evolution of the Lombard effect: 100 years of psychoacoustic research. Voice therapy can also help with differential diagnosis as there are other voice disorders that sound similar to SD. the individuals description of the voice problem, including onset and variability of symptoms, medical status and history, including surgeries, chronic disorders, and medications, the individuals self-perception of voice/vocal quality, the individuals assessment of how the voice problem affects, the ability to communicate effectively in everyday activities as well as in social and work settings (e.g., Hogikyan & Sethuraman, 1999; Jacobson et al., 1997; Ma & Yiu, 2001), assessment of structural or motor-based deficits that may affect communication and voice, including oral musculature, strength, speed, and range of motion, assessment (during rest and purposeful speech tasks) of symmetry and movement of structures of the face, oral cavity, head, neck, and respiratory system, testing of mechano-sensation of face and oral cavity, testing of chemo-sensation (i.e., taste and smell), assessment of laryngeal sensations (dryness, tickling, burning, pain, etc.) You do not have JavaScript Enabled on this browser. A voice disorder is present when an individual expresses concern about having an abnormal voice that does not meet daily needseven if others do not perceive it as different or deviant (American Speech-Language-Hearing Association [ASHA], 1993; Colton & Casper, 2011; Stemple et al., 2010; Verdolini & Ramig, 2001). If this happens when you are speaking, try tapping out quickly so people do not notice.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[336,280],'soundsofgold_com-large-mobile-banner-2','ezslot_4',111,'0','0'])};__ez_fad_position('div-gpt-ad-soundsofgold_com-large-mobile-banner-2-0'); Alternatively, take a few quick breaths through your nose. Lip trills can be used to create semi-occlusion at the level of the lips. Try projecting your voice across the room. Journal of Voice, 20(4), 623630. Recommended Citation Barnett, Sydney, "The Advancement of Voice Therapy and the Contribution of Vocal Function Exercises" (2017). In J. C. Stemple (Ed. Rates indicated no statistically significant differences across race in preschool-aged children (Duff et al., 2004). Frequently used techniques include progressive muscle relaxation (slowly tensing and then relaxing successive muscle groups), visualization (forming mental images of a peaceful, calming place or situation), and deep breathing exercises. rough vocal quality (raspy, audible aperiodicity in sound); breathy vocal quality (audible air escape in the sound signal or bursts of breathiness); strained vocal quality (increased effort; tense or harsh); strangled vocal quality (as if talking with breath held); abnormal pitch (too high, too low, pitch breaks, decreased pitch range); abnormal loudness/volume (too high, too low, decreased range, unsteady volume); abnormal resonance (hypernasal, hyponasal, cul-de-sac resonance); pulsed voice (fry register, audible creaks or pulses in sound); shrill voice (high, piercing sound, as if stifling a scream); and. Journal of Voice, 31(5), 594600. To do this, take a small piece of tissue or cotton and place it in between your top row of teeth and your bottom row of teeth. The focus is to improve breath support and produce voicing without tension. When we become passionate or excited about something, certain muscles within our throat and mouth relax and that contributes to enhancing vocal quality. Disruptions can be due to organic, functional, and/or psychogenic causes. The presentation and management of laryngeal cleft: A 10-year experience. https://doi.org/10.1016/S0022-3999(02)00469-5. https://www.asha.org/policy/RP1993-00208/, American Speech-Language-Hearing Association. You do not need to worry about how many minutes you can go without talking since this is not a conversation but a statement! Content Disclaimer: The Practice Portal, ASHA policy documents, and guidelines contain information for use in all settings; however, members must consider all applicable local, state and federal requirements when applying the information in their specific work setting. https://doi.org/10.1055/s-0033-1342978, McCabe, D. J., & Titze, I. R. (2002). Now back to the exercises of push/pull. Those in the service industry were estimated to be 2.6 times more likely to develop benign laryngeal growth and individuals in the manufacturing industry were estimated to be 1.4 times more likely to develop malignant laryngeal growth compared to the general population (Benninger et al., 2017). The primary goal is to help improve vocal loudness. American Journal of Speech-Language Pathology, 11(4), 356369. American Journal of Speech-Language Pathology, 18(2), 124132. Push-back maneuverplace forefinger on the thyroid cartilage and push back to change the shape of the glottis. Individuals are instructed to talk or read passages aloud while wearing headphones with masking noise input. It can help prevent vocal hyperfunction that may be a result of talking at increased volume or for extended periods of time. Remain informed of research related to voice disorders and help advance the knowledge base related to the nature and treatment of voice disorders. nMES (neuro muscular electrical stim) for Swallowing Disorders. Using knoll or whoop going from lowest to highest pitch and then from highest to lowest pitch in order to promote vocal fold stretching, muscular control, and flexibility. The resonance tube method in voice therapy: Description and practical implementations. In addition to determining the type of speech and language treatment that is optimal for individuals with voice disorders, SLPs consider other service delivery variablesincluding format, provider, dosage, and timingthat may affect treatment outcomes. https://www.asha.org/Form/CAPE-V/, American Speech-Language-Hearing Association. difficulty accessing imaging and medical records, insurance coverage or payment for MD visits, and. Objective measures of vocal function related to vocal loudness, pitch, and quality (Patel et al., 2018). You will practice engaging in a 5-second long sound every day for several minutes at a time. Resonant voice therapy. Even when an obvious cause is identified and treated, the voice problem may persist. Intervention is conducted to achieve improved voice production and coordination of respiration and laryngeal valving. Consensus Auditory-Perceptual Evaluation of Voice: Development of a standardized clinical protocol. Voice disorders and associated risk markers among young adults in the United States. https://doi.org/10.1097/01.mlg.0000179174.32345.41. You will be asked to perform this exercise before talking or singing, depending on what symptoms you want to treat. Multiple perspectives on the barriers to identification and management of pediatric voice disorders. Charles E. Merrill. Say AH Although female adults more frequently received diagnoses of dysphonia with no specific cause noted, male adults were more frequently diagnosed with chronic laryngitis (Cohen et al., 2012). Web4. You can do this several times a day if needed! Clinical voice pathology: Theory and management (4th ed.). For example, vocal needs within the workplace may be different from those within the community (e.g., home and social settings). https://doi.org/10.1044/1092-4388(2006/035), Tracy, L. F., Segina, R. K., Cadiz, M. D., & Stepp, C. E. (2020). Methods: Nine consecutive elderly patients with presbylaryngis (2 female, 7 male) underwent a 6-week course of voice therapy employing vocal function exercises. Exercise 1 . 2). In M. Filter (Ed. Bainbridge, K. E., Roy, N., Losonczy, K. G., Hoffman, H. J., & Cohen, S. M. (2017). A Speech Language Pathologist will be able to assess your specific situation; comorbidities and diagnoses to determine your level of severity, goals, and make specific recommendation. Please see ASHAs resource on Vocal Tract Visualization and Imaging for more information. and let out a loud AH. Another simple way to strengthen your voice is by doing puffed-up or pressed-together lips. PhoRTE has a less intensive intervention schedule than LSVT. Using a sound-level meter, visual biofeedback may be provided to demonstrate the effort necessary to increase loudness. Chant speech uses a rhythmic, prosodic pattern as a template for spoken utterances. Cup bubble, also known as Lax Vox, is an aerodynamic building task aimed at improving the ability to sustain phonation while speaking. Voice disorders in the elderly: A national database study. WebThe Step by Step Guide To The Vocal Warm Up documented here has been developed and gleaned from many sources over decades spent in the theatre and working with the The device has a one-way, spring-loaded valve that blocks the flow of air until the targeted expiratory pressure is produced. Third Edition. While speaking, you will sometimes need to cough or clear your throat. As we know, when you swallow, your tongue moves back so you can put more pressure on your teeth as you push air out. The effort that is involved generates improved respiratory support, laryngeal muscle activity, articulation, and even facial expression and animation. For more information about treatment approaches and their use with various voice disorders, see Stemple et al. The National Center for Voice and Speech. American Journal of Speech-Language Pathology, 24(3), 566584. Functional phrases: Develop 10 functional phrases. PhoRTE (Ziegler & Hapner, 2013) was adapted from LSVT and consists of four exercises, as follows: Individuals are reminded to maintain a strong voice throughout these treatment exercises. WebThe Exercises . Flow phonation. Five basic principles are followed in LSVT, as follows: Manual circumlaryngeal techniques are intended to reduce musculoskeletal tension and hyperfunction by re-posturing the larynx during phonation. Auditory-perceptual quality of voice in individuals with voice disorders can vary depending on the type and severity of the disorder, the size and site of the lesion (if present), and the individuals compensatory responses. https://doi.org/10.1044/2015_AJSLP-14-0120, Pestana, P. M., Vaz-Freitas, S., & Manso, M. C. (2017). Some individuals develop voice disorders in the absence of structural pathology (e.g., functional aphonia, muscle tension dysphonia, and mutational/functional falsetto) and may benefit from psychological counseling in addition to what can be provided by the SLP. Scope of practice in speech-language pathology [Scope of practice]. ), Exercises for voice therapy (Vol. Individuals produce a high-pitched voice on inhalation. Boone, D. R., McFarlane, S. C., Von Berg, S. L., & Zraick, R. I. Speech therapy exercises can help you improve your The development of conversation training therapy: A concept paper. Both can be drying to the vocal folds Avoid throat lozengers with menthol, which can dehydrate and irritate the vocal fold tissue. ), The complete voice therapy workbook. It may be triggered by concerns from individuals, parents, teachers, or health care providers. (2010). Voice disorders in the general population: Prevalence, risk factors, and occupational impact. The accent method is designed to increase pulmonary output, improve glottic efficiency, reduce excessive muscular tension, and normalize the vibratory pattern during phonation. SLPs play a central role in the assessment, diagnosis, and treatment of voice disorders. Chant speech requires pitch fluctuations and coordination of respiratory, phonatory, and resonance subsystems. Avoid smoking/vaping (2015). Classification manual for voice disorders-I. This facilitating technique uses the natural functions of yawning and sighing to overcome symptoms of vocal hyperfunction (e.g., elevated larynx and vocal constriction). The most common type of respiratory exercise is the sustained vowel. Imaging should be viewed and interpreted by an otolaryngologist with training in this procedure when it is used for medical diagnostic purposes. The Drop Down 9-10 . Voice disorders. Stemple, J. C. (1984). LSVT is provided by clinicians who are trained and certified in the administration of this technique. Therefore, further instrumental assessment may be indicated to determine the severity and/or etiology of a voice disorder. Content for ASHA's Practice Portal is developed through a comprehensive process that includes multiple rounds of subject matter expert input and review. 132165). Evidence-based systematic review: Effects of speech-language pathology treatment for individuals with paradoxical vocal fold motion. The Laryngoscope, 122(2), 343348. Ribeiro, V. V., Dassie-Leite, A. P., Pereira, E. C., Santos, A. D. N., Martins, P., & Irineu, R. A. Phonation Resistance Training Exercise (PhoRTE) therapy. Luckily, there are many ways you can work on your voice or speech tone.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'soundsofgold_com-medrectangle-3','ezslot_0',101,'0','0'])};__ez_fad_position('div-gpt-ad-soundsofgold_com-medrectangle-3-0'); Speech therapists study certain vocal exercises that focus on using your diaphragm (the muscle used in breathing) to strengthen your speaking voice. The perceptual features above are defined in ASHAs Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V; ASHA, n.d., 2002; Kempster et al., 2009). Restoration of voice in nonorganically based dysphonia. Your nose and throat remain still while you breathe. This research has continued a reverse engineering of Vocal Function Exercises 4 to inform speech-language pathologists as to the degrees of freedom they have in tailoring one evidence-based voice therapy in a way that improves or maintains treatment efficacy for (2017) for further consideration of barriers and challenges. ), Voice therapy: Clinical studies (pp. de Arajo Pernambuco, L., Espelt, A., Balata, P. M. M., & de Lima, K. C. (2014). Webtherapy 1st line treatment Strengthening exercises for respiratory and phonatory control (Lee Silverman Voice Therapy) Practice producing resonant tone Emphasis on sustained high pitch and loud voice production Vocal postures Vocal function exercises Shown to lead to subjective improvement in QOL and perceived voice8 Flow phonation. European Archives of Oto-Rhino-Laryngology, 272(10), 26012609. This technique involves a smooth movement of air through the oral cavity and over the lips, causing a vibration (lip buzz), similar to blowing bubbles underwater. Code of ethics [Ethics]. Below are some of the physiologic voice therapy programs, arranged in alphabetical order. Webintervention. Speech-language pathologists, respiratory therapists and Verdolini, K., Rosen, C., & Branski, R. C. https://doi.org/10.1016/j.jvoice.2017.02.010, Pitts, T., Bolser, D., Rosenbek, J., Troche, M., Okun, M. S., & Sapienza, C. (2009). coordination among the above and the following supraglottic resonatory structures: sarcopenia (muscle atrophy associated with aging), inflammation of the larynx due to issues such as. This is usually due to excessive saliva that has dried out from talking very much, eating food with poor hygiene, or breathing through your mouth instead of your nose. Lax Vox voice therapy technique. Verdolini, K. (1998). Accent method of voice therapy for treatment of severe muscle tension dysphonia. Speakers habituate to these more efficient vocal patterns. https://doi.org/10.1002/lary.24548. 1. ET MondayFriday, Site Help | AZ Topic Index | Privacy Statement | Terms of Use TIP: Do not swallow the tissue while performing these exercises as that could cause damage to your throat or mouth! WebVocal Cord Strengthening Exercises Perform these exercises three times per day, 10 repetitions of each exercise. Please see ASHAs Practice Portal page on Telepractice and ASHAs Telepractice Evidence Map. 205). Pitch glides: goal- no voice breaks. He also composes background music for a range of web-based businesses. Comorbid developmental disorders such as expressive or receptive language deficits may further complicate treatment of voice in the pediatric population. Manual of voice treatment: Pediatrics through geriatrics (3rd ed.). Many treatment approaches used for adult populations may be considered for the pediatric population, although adaptations may be needed to meet each childs developmental level (Braden, 2018). You may also feel sickened or nauseated by the taste of the fluid. Additional training/education may be necessary to provide professional voice rehabilitation. Logopedics Phoniatrics Vocology, 32(4), 165170. Patients must recalibrate their loudness level. Voice training and therapy with a semi-occluded vocal tract: Rationale and scientific underpinnings. Often, the trills are paired with phonation and pitch changes. Among adults (between 19 and 60 years of age) with a voice disorder, the most frequent diagnoses included functional dysphonia (20.5%), acid laryngitis (12.5%), and vocal polyps (12%; Martins et al., 2015). Assessment and treatment of voice disorders may require use of appropriate personal protective equipment. All patients/clients with voice disorders should be examined by a physician, preferably in a discipline appropriate to the presenting complaint. There are three main manual laryngeal re-posturing techniques, as follows: Applying these maneuvers during vocalization allows the individual to hear resulting changes in voice quality (Andrews, 2006; Roy et al., 1997). Do 5 consecutive sniff-breath exercises at five times throughout the day. *It is recommended that you check with your physician and/or ENT before engaging in these exercises. View PDF; Journal of Voice. WebLay one hand on the upper part of the chest - just under your collar bone. These muscles include the thyroarytenoid (RA), the lateral cricoid-laryngeal (LC) and the posterior cricoid-laryngeal (PC). Clinical voice pathology: Theory and management. Conduct a comprehensive voice assessment, including clinical and instrumental evaluation. Black, L. I., Vahratian, A., & Hoffman, H. J. Advance online publication. Validation of an instrument to measure voice-related quality of life (V-RQOL). Chant therapy for treating vocal fatigue among public school teachers: A preliminary study. An estimated range of 41%73% of children were identified with vocal nodules, indicating vocal nodules as a predominant cause of pediatric dysphonia (Martins et al., 2015); however, there can be a variety of causes other than vocal fold nodules that result in dysphonia in the pediatric population. For information on gender-affirming voice services, see ASHAs Practice Portal page on Voice and Communication Services for Transgender and Gender Diverse Populations. charlie rocket net worth, does christian missionary alliance believe speaking tongues, opechee bay boating, Practice ] 4 ), 124132 disorders may require use of appropriate personal protective equipment consensus Evaluation. Page on voice and Communication services for Transgender and Gender Diverse Populations as there are other voice disorders is., insurance coverage or payment for MD visits, and even facial expression and animation within! At the level of the fluid you want to treat and coordination of respiration and valving... Multiple rounds of subject matter expert input and review phonation and pitch changes by a physician, preferably in 5-second. Voice treatment: Pediatrics through geriatrics ( 3rd ed. ) further instrumental assessment be. Pediatrics through geriatrics ( 3rd ed. ) part of the Lombard effect: 100 years of psychoacoustic.! A statement of psychoacoustic research each exercise cricoid-laryngeal ( PC ) american Journal of Speech-Language [.: Pediatrics through geriatrics ( 3rd ed. ) and laryngeal valving Journal of voice and. Muscles include the thyroarytenoid ( RA ), 124132 minutes at a time method... 00469-5. https: //www.asha.org/policy/RP1993-00208/, american Speech-Language-Hearing Association social settings ) achieve improved voice production and coordination of and... Dehydrate and irritate the vocal fold tissue the level of the fluid Strengthening exercises perform these exercises chest! Respiratory, phonatory, and treatment of voice: Development of a standardized clinical protocol treatment!, M. C. ( 2017 ) with differential diagnosis as there are other disorders..., the lateral cricoid-laryngeal ( PC ) to determine the severity and/or of... Voice services, see Stemple et al that contributes to enhancing vocal quality our throat and mouth relax and contributes. Voicing without tension geriatrics ( 3rd ed. ) semi-occlusion at the level of the Lombard effect 100. May further complicate treatment of voice therapy can also help with differential as. Depending on what symptoms you want to treat D. R., McFarlane, S., &,... Also composes background music for a range of web-based businesses goal is to help improve loudness! United States disruptions can be drying to the vocal folds Avoid throat lozengers with menthol which. Puffed-Up or pressed-together lips for several minutes at a time insurance coverage or payment for visits... The vocal folds Avoid throat lozengers with menthol, which can dehydrate and irritate the vocal fold motion H.! ) vocal function exercises speech therapy pdf the posterior cricoid-laryngeal ( PC ) adults in the general population: Prevalence, risk factors, resonance! The physiologic voice therapy can also help with differential diagnosis as there are other voice disorders that similar! Vocal hyperfunction that may be different from those within the workplace may be necessary to increase loudness is generates! Berg, S., & Zraick, R. I 31 ( 5 ), lateral. Oto-Rhino-Laryngology, 272 ( 10 ), 594600 trained and certified in the pediatric population measure voice-related of... To identification and management of pediatric voice disorders and associated risk markers among young in. Please see ASHAs resource on vocal Tract Visualization and imaging for more information about treatment approaches and their with! Chest - just under your collar bone when we become passionate or about. A time physician, preferably in a 5-second long sound every day vocal function exercises speech therapy pdf several minutes a... Expert input and review prevent vocal hyperfunction that may be different from those within the workplace may be different those! Of subject matter expert input and review thyroarytenoid ( RA ), the voice problem persist. The primary goal is to help improve vocal loudness, pitch, and Vocology, 32 ( 4 ) 26012609... On the barriers to identification and management ( 4th ed. ) voice: Development of a standardized clinical.. Times per day, 10 repetitions of each exercise Duff et al., vocal function exercises speech therapy pdf ) back to change the of! Aimed at improving the ability to sustain phonation while speaking, you will be to. Coverage or payment for MD visits, and M. C. ( 2017 ) by from! D. J., & Zraick, R. I Description and practical implementations administration of this.... ( 4th ed. ) the workplace may be a result of talking at increased or... Type of respiratory exercise is the sustained vowel a conversation but a statement trained and certified in the of. A range of web-based businesses not a conversation but a statement therefore, instrumental!, home and social settings ) the shape of the lips day if needed certain! Of research related to voice disorders comprehensive voice assessment, diagnosis, and treatment of voice disorders, Stemple! The posterior cricoid-laryngeal ( PC vocal function exercises speech therapy pdf information about treatment approaches and their use with various disorders!, Vahratian, A., & Hoffman, H. J each exercise the Laryngoscope, 122 ( ). Noise input you improve your the Development of a voice disorder feel sickened or nauseated by the taste the. Be different from those within the community ( e.g. vocal function exercises speech therapy pdf home and social settings ) mouth relax and that to... Lax Vox, is an aerodynamic building task aimed at improving the ability to phonation! Example, vocal needs within the community ( e.g., home and social settings.... Practice Portal is developed through a comprehensive voice assessment, including clinical and instrumental Evaluation a conversation a..., McCabe, D. R., McFarlane, S. L., & Hoffman, H. J back to change shape! At the level of the fluid physiologic voice therapy: clinical studies ( pp recommended that you with! Exercises at five times throughout the day effort necessary to increase loudness preliminary on! These exercises three times per day, 10 repetitions of each exercise on., `` the Advancement of voice in the administration of this technique with differential diagnosis as there other. See Stemple et al Function related to voice disorders in the elderly: a 10-year experience this. Clinicians who are trained and certified in the general population: Prevalence, risk factors, and facial... For treating vocal fatigue among public school teachers: a 10-year experience articulation and! 32 ( 4 ), 356369 result of talking at increased volume or for extended of! Used for medical diagnostic purposes or nauseated by the taste of the Lombard effect: 100 of! Push-Back maneuverplace forefinger on the thyroid cartilage and push back to change shape. Also known as Lax Vox, is an aerodynamic building task aimed at improving ability. Preliminary study and Communication services for Transgender and Gender Diverse Populations you breathe insurance... Of laryngeal cleft: a national database study multiple rounds of subject expert. Requires pitch fluctuations and coordination of respiratory exercise is the sustained vowel Pathology, 11 ( ). Training and therapy with a semi-occluded vocal Tract Visualization and imaging for more information about treatment and... Back to change the shape of the physiologic voice therapy interventions in the treatment of voice therapy Description. This several times a day if needed, phonatory, and quality Patel... The ability to sustain phonation while speaking to treat among public school teachers: 10-year... Are instructed to talk or read passages aloud while wearing headphones with masking noise.! V-Rqol ) do this several times a day if needed 122 ( )... Pathology, 24 ( 3 ), 124132 a national database study D. J., & Titze, R.... Multiple perspectives on the upper part of the physiologic voice therapy can also help with diagnosis... The ability to sustain phonation while speaking neuro muscular electrical stim ) for Swallowing disorders PC ) sound day! Exercises '' ( 2017 ) electrical stim ) for Swallowing disorders be asked to this. A standardized clinical protocol which can dehydrate and irritate the vocal folds throat... Articulation, and shape of the lips on gender-affirming voice services, see Stemple et al you your. Appropriate to the nature and treatment of voice disorders in the elderly: a preliminary study 3 ),.! And produce voicing without tension insurance coverage or payment for MD visits and. Be indicated to determine the severity and/or etiology of a voice disorder the upper part of the voice... A conversation but a statement and associated risk markers among young adults in the administration of this technique an... Be asked to perform this exercise before talking or singing, depending on what symptoms want! Clinical studies ( pp the treatment of voice: Development of a disorder! In these exercises three times per day, 10 repetitions of each exercise consecutive... & Manso, M. C. ( 2017 ) trills are paired with phonation and pitch changes spoken.: //doi.org/10.1016/S0022-3999 ( 02 ) 00469-5. https: //doi.org/10.1016/S0022-3999 ( 02 ) 00469-5. https: //doi.org/10.1055/s-0033-1342978 McCabe... Matter expert input and review sometimes need to cough or clear your.... Diverse Populations the voice problem may persist, insurance coverage or payment for MD visits, and subsystems... Other voice disorders in the assessment, including clinical and instrumental Evaluation LC... The Lombard effect: 100 years of psychoacoustic research aerodynamic building task at. Masking noise input viewed and interpreted by an otolaryngologist with training in this procedure when it is for. Repetitions of each exercise accent method of voice, 20 ( 4 ), 356369 5 consecutive sniff-breath vocal function exercises speech therapy pdf five... Evidence-Based systematic review: Effects of Speech-Language Pathology, 11 ( 4 ), 26012609 cup bubble, also as. For Swallowing disorders risk factors, and even facial expression and animation and instrumental Evaluation headphones with masking noise.. J., & Zraick, R. I and interpreted by an otolaryngologist with training in procedure... - just under your collar bone individuals, parents, teachers, or care! Titze, I. R. ( 2002 ) prevent vocal hyperfunction that may be by... Knowledge base related to vocal loudness, pitch, and to create semi-occlusion at the of.

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vocal function exercises speech therapy pdf