“…Direct magnitude estimation has been used in ratings of voice pleasantness, acceptability, naturalness and overall severity in TE speech [10,11] . In these studies, the direct magnitude estimation scale was compared with ratings made on equal-appearing interval scales (EAIS).…”
Objective: To perform perceptual and acoustical analyses of tracheoesophageal (TE) speech and relate these analyses to self-reported voice handicap. Methods: Recordings of 35 TE speakers were perceptually assessed by 5 speech-language pathologists. Acoustical analyses were made of voice aspects and temporal speech aspects. Self-assessments of voice were made with the Voice Handicap Index (VHI). Results: Perceptual assessment of TE speech showed significant correlations between overall degree of deviation and low speaking rate, deviant articulation, monotonous intonation, roughness and low pitch. The overall degree of deviation correlated significantly with acoustical measurements of speaking rate, articulation rate, and phrase length. Significant correlations were also found between assessed pitch and measured fundamental frequency, between assessed speaking rate and measured number of words per minute, and between assessed phrase length and measured number of syllables per breath. Self-assessments of VHI were significantly correlated with voice intensity and temporal speech aspects such as total reading time, phrase length, and percent pause time. No significant correlations were found between perceptual assessment and VHI degree. Conclusion: The listeners’ ratings of overall degree of deviation in TE speech showed relations to both voice quality and temporal aspects in speech. The TE speakers’ voice handicap degree were mainly related to changes in temporal aspects of speech.
“…Direct magnitude estimation has been used in ratings of voice pleasantness, acceptability, naturalness and overall severity in TE speech [10,11] . In these studies, the direct magnitude estimation scale was compared with ratings made on equal-appearing interval scales (EAIS).…”
Objective: To perform perceptual and acoustical analyses of tracheoesophageal (TE) speech and relate these analyses to self-reported voice handicap. Methods: Recordings of 35 TE speakers were perceptually assessed by 5 speech-language pathologists. Acoustical analyses were made of voice aspects and temporal speech aspects. Self-assessments of voice were made with the Voice Handicap Index (VHI). Results: Perceptual assessment of TE speech showed significant correlations between overall degree of deviation and low speaking rate, deviant articulation, monotonous intonation, roughness and low pitch. The overall degree of deviation correlated significantly with acoustical measurements of speaking rate, articulation rate, and phrase length. Significant correlations were also found between assessed pitch and measured fundamental frequency, between assessed speaking rate and measured number of words per minute, and between assessed phrase length and measured number of syllables per breath. Self-assessments of VHI were significantly correlated with voice intensity and temporal speech aspects such as total reading time, phrase length, and percent pause time. No significant correlations were found between perceptual assessment and VHI degree. Conclusion: The listeners’ ratings of overall degree of deviation in TE speech showed relations to both voice quality and temporal aspects in speech. The TE speakers’ voice handicap degree were mainly related to changes in temporal aspects of speech.
“…The majority of scales also fail to specify the anchor baseline; hence it is unclear whether raters compared voice stimuli to normal laryngeal voice or optimal tracheoesophageal voice. Few studies included scale validity and reliability considerations and one study series focussed solely on naïve rater reliability 11–13 …”
mentioning
confidence: 99%
“…Few studies included scale validity and reliability considerations and one study series focussed solely on naïve rater reliability. [11][12][13] Several key studies reported that tracheoesophageal voice quality is largely determined by the tone of the vibrating neoglottis, 10,14 a bar-like structure arising from the posterior neopharyngeal wall. Neoglottal tone is a complex concept, shown to exist along a continuum 14 (Fig.…”
Expert speech and language therapist raters may be the optimal judges for tracheoesophageal voice assessment. Tonicity appears to be a good predictor of 'Overall Grade'. These scales have clinical applicability to investigate techniques that facilitate optotonic neoglottal voice quality.
“…Alternative measures to equally appearing interval and visual analogue scale formats are also available. Direct magnitude estimation (DME) has been utilised to investigate naïve raters' perceptions of laryngeal and tracheoesophageal voice [19,21,22]. Here judges assign a score in relation to an agreed baseline stimulus (modulus) of zero.…”
Further research is needed to establish the optimal tools for research and clinical practice. Investigations should also incorporate assessments of real-life communication in daily living rather than solely focussing on recordings in laboratory conditions.
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