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Acoustic Analysis of Speech
Availability
For more information about the instrument: Acoustic Analysis of Speech
Classification
NeuroRehab Supplemental - Highly Recommended
Recommendations for Use: Indicated for studies requiring a measure of speech. Recommended for Friedreich's Ataxia (FA).
 
Exploratory: Friedreich's Ataxia (FA)
Short Description of Instrument
Acoustic analysis provides information on both a talker's behavior and a listener's perception of the signal that is so generated.
Comments/Special Instructions
NeuroRehab Specific:
Primarily descriptive studies identifying acoustic measures that can be used for characterizing speech and voice patterns, possibly useful for treatment outcomes. We recommend consideration of the ASHA working group core set of acoustic measures and described methods for voice parameters: Patel RR, Awan SN, Barkmeier-Kraemer J, Courey M, Deliyski D, Eadie T, Paul D, ?vec JG, Hillman R. Recommended Protocols for Instrumental Assessment of Voice: American Speech-Language-Hearing Association Expert Panel to Develop a Protocol for Instrumental Assessment of Vocal Function. Am J Speech Lang Pathol. 2018 Aug 6;27(3):887-905. Beyond Friedrich's ataxia, there is an extensive literature on acoustic analysis of speech to characterize the severity of articulation, resonance, and voice problems, or to measure treatment outcomes in those with other neurological conditions that affect the subsystems of speech. Additional measures should be considered for those with other neurological conditions that affect the subsystems of speech. CPP was found to be distinguishing between those with Friedreich's ataxia and normal controls in both sustained phonation and connected speech (Vogel et al, 2017; Carson et al, 2015). Additional measures have been found to be sensitive to longitudinal changes in people with FA. These include utterance duration in milliseconds, variation in frequency in connected speech (vocal frequency SDin Hz), articulation rate (syllables/sec), pause duration, voice onset time (ms), rate of spectral change (avg. rate of change in the spectral envelope across 50ms of speech), degree of spectral change, and signal-to-noise ratio (Vogel et al, 2014; Rosen et al, 2012; Brendel et al, 2013; Ackermann et al, 1995; Hertrich et al 1995, Kent el al 2000, Folker et al 2012). Nasalance could be used to measure hypernasality, but has not been shown to be definitively different than controls (Poole et al, 2015).
Scoring
N/A – data is analyzed, not scored.
Scoring and Psychometric Properties
N/A - data is analyzed, not scored.
References
Key References:
Kent RD, Read C. The Acoustic Analysis of Speech. San Diego, CA: Singular Publishing Group, 1992.
 
Kent RD, Read C. Acoustic Analysis of Speech 2nd Edition Cengage Learning; 2 edition, 2001.
 
Additional References:
Ackermann H, Hertrich I, Hehr T. Oral diadochokinesis in neurological dysarthrias. Folia Phoniatr Logop. 1995;47(1):15-23.
 
Ball MJ, Perkins MR, Müller N, Howard S (eds). The Handbook of Clinical Linguistics. Blackwell Publishing, 2008. Blackwell Reference Online. 10 September 2010 https://onlinelibrary.wiley.com/doi/book/10.1002/9781444301007
 
Brendel B, Ackermann H, Berg D, Lindig T, SchÖlderle T, SchÖls L, Synofzik M, Ziegler W. Friedreich ataxia: dysarthria profile and clinical data. Cerebellum. 2013 Aug;12(4):475-84.
 
Carson C, Ryalls J, Hardin-Hollingsworth K, Le Normand MT, Ruddy B. Acoustic Analyses of Prolonged Vowels in Young Adults With Friedreich Ataxia. J Voice. 2016 May;30(3):272-80.
 
Folker JE, Murdoch BE, Rosen KM, Cahill LM, Delatycki MB, Corben LA, Vogel AP. Differentiating profiles of speech impairments in Friedreich's ataxia: a perceptual and instrumental approach. Int J Lang Commun Disord. 2012 Jan-Feb;47(1):65-76.
 
Hertrich I, Ackermann H. Coarticulation in slow speech: durational and spectral analysis. Lang Speech. 1995 Apr-Jun;38 (Pt 2):159-87.
 
Kent RD, Kent JF, Duffy JR, Thomas JE, Weismer G, Stuntebeck S. Ataxic dysarthria. J Speech Lang Hear Res. 2000 Oct;43(5):1275-89.
 
Patel RR, Awan SN, Barkmeier-Kraemer J, Courey M, Deliyski D, Eadie T, Paul D, ?vec JG, Hillman R. Recommended Protocols for Instrumental Assessment of Voice: American Speech-Language-Hearing Association Expert Panel to Develop a Protocol for Instrumental Assessment of Vocal Function. Am J Speech Lang Pathol. 2018 Aug 6;27(3):887-905.
 
Poole ML, Wee JS, Folker JE, Corben LA, Delatycki MB, Vogel AP. Nasality in Friedreich ataxia. Clin Linguist Phon. 2015 Jan;29(1):46-58.
 
Rosen KM, Folker JE, Vogel AP, Corben LA, Murdoch BE, Delatycki MB. Longitudinal change in dysarthria associated with Friedreich ataxia: a potential clinical endpoint. J Neurol. 2012 Nov;259(11):2471-7.
 
Vogel AP, Rosen KM, Morgan AT, Reilly S. Comparability of modern recording devices for speech analysis: smartphone, landline, laptop, and hard disc recorder. Folia Phoniatr Logop. 2014;66(6):244-50.
 
Vogel AP, Wardrop MI, Folker JE, Synofzik M, Corben LA, Delatycki MB, Awan SN. Voice in Friedreich Ataxia. J Voice. 2017 Mar;31(2):243.e9-243.e19.
 
Yiu EM, Tai G, Peverill RE, Lee KJ, Croft KD, Mori TA, Scheiber-Mojdehkar B, et al.An open-label trial in Friedreich ataxia suggests clinical benefit without effect on frataxin levels. J Neurol 2015; 262(5):1344-53.
 
 
Document last updated January 2022