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Extending The Bandwidth Of Intensity-Based Sound Power Estimates, Michael C. Mortenson
Extending The Bandwidth Of Intensity-Based Sound Power Estimates, Michael C. Mortenson
Undergraduate Honors Theses
Sound power is often measured using the intensity-based engineering standard ANSI S12.12-1992:R2017. Traditional methods for intensity-based sound power estimation are limited in bandwidth at low frequencies by phase mismatch between microphones and at high frequencies by microphone spacing—with errors occurring well below the spatial Nyquist frequency. The Phase and Amplitude Gradient Estimation (PAGE) method has been used to extend the bandwidth of intensity calculations [1]. This thesis examines the efficacy of the PAGE method in overcoming bandwidth limitations in estimating sound power. Specifically, the sound fields from three sources—a blender, vacuum cleaner, and reference sound source—were measured according to ANSI …
Kinematic And Acoustic Vowel Changes In Adult Bite Block Speech, Tanner Keith Low
Kinematic And Acoustic Vowel Changes In Adult Bite Block Speech, Tanner Keith Low
Theses and Dissertations
The current study examined the lingual kinematic and acoustic effects of bite blocks on vowels in a sentence context. Twenty adult native English speakers (10 male, 10 female) with no speech, language, or hearing deficits participated in the study. The corner vowels found in the sentence, The blue spot is on the black key again (i.e., /u/, /É‘/, /æ/, /i/), were measured kinematically and acoustically immediately before and after bite block insertion. The participants' speech was audio-recorded and their lingual articulatory movements were measured with a Northern Digital Instruments Wave electromagnetic articulograph. The sensor coils were attached to three different …
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
Theses and Dissertations
This study examined the changes that occur in spontaneous speech when speakers are distracted by background audio. Forty young adults answered open ended questions under five audio conditions (pink noise, movie dialogue, heated debate, classical music, and contemporary music) and a silent condition. Acoustic parameters assessed during the sessions included mean and variability of the fundamental frequency (F0), mean and variability of intensity, speaking time ratio, and disfluency ratio. It was hypothesized that there would be significant increases in the mean and variability of F0 as well as the mean and variability of intensity. There were statistically significant increases in …
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
Theses and Dissertations
This study examined the changes that occur in spontaneous speech when speakers are distracted by background audio. Forty young adults answered open ended questions under five audio conditions (pink noise, movie dialogue, heated debate, classical music, and contemporary music) and a silent condition. Acoustic parameters assessed during the sessions included mean and variability of the fundamental frequency (F0), mean and variability of intensity, speaking time ratio, and disfluency ratio. It was hypothesized that there would be significant increases in the mean and variability of F0 as well as the mean and variability of intensity. There were statistically significant increases in …
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
The Effects Of Distracting Background Audio On Spontaneous Speech, Kacy Nicole Chapman
Theses and Dissertations
This study examined the changes that occur in spontaneous speech when speakers are distracted by background audio. Forty young adults answered open ended questions under five audio conditions (pink noise, movie dialogue, heated debate, classical music, and contemporary music) and a silent condition. Acoustic parameters assessed during the sessions included mean and variability of the fundamental frequency (F0), mean and variability of intensity, speaking time ratio, and disfluency ratio. It was hypothesized that there would be significant increases in the mean and variability of F0 as well as the mean and variability of intensity. There were statistically significant increases in …