Psychophysical Scaling of Distorted Speech

1981 ◽  
Vol 24 (1) ◽  
pp. 44-47 ◽  
Author(s):  
S. Joseph Barry ◽  
Gerald Kidd
Keyword(s):  
Magnitude Estimation ◽  
Speech Signal ◽  
Normal Hearing ◽  
Magnitude Production ◽  
Psychophysical Scaling

Magnitude estimation and magnitude production procedures were used by ten normal-hearing subjects to scale the perceived distortion corresponding to the systematically varied physical distortion of a speech signal. The combined function based on the results of the two procedures exhibited a slope of 0.83, indicating that perceived distortion grows more slowly than physical distortion.

Effects of Exposure to Psychophysical Scaling on Lingual Vibrotactile Magnitude Estimation and Magnitude Production

1986 ◽  
Vol 63 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Donald Fucci ◽  
Daniel Harris ◽  
Elise Mc Math ◽  
Linda Petrosino
Keyword(s):  
Magnitude Estimation ◽  
Prior Exposure ◽  
Magnitude Production ◽  
Production Values ◽  
Psychophysical Scaling ◽  
Significant Difference ◽  
Scaling Methods ◽  
Production Group ◽  
Group 2 ◽  
Group 1

The purpose of the present study was to determine if the results obtained by the scaling methods of magnitude estimation and magnitude production could be influenced by providing subjects with prior exposure to psychophysical scaling in the form of magnitude estimation or magnitude production. Group 1 ( n = 10, Mage = 21.1 yr.) performed lingual vibrotactile-magnitude estimation followed by lingual vibrotactile magnitude production. Group 2 ( n = 10, Mage = 19.7 yr.) performed lingual vibrotactile-magnitude production (using the magnitude-estimation responses provided by Group 1), followed by lingual vibrotactile-magnitude estimation. For the magnitude estimations there was no over-all statistically significant difference between the two groups, but there was for the magnitude-production values. Magnitude-estimation scaling was apparently not influenced by prior exposure to magnitude production, while magnitude-production scaling was influenced by prior exposure to magnitude estimation. The results are discussed in terms of how subjective scaling behavior in psychophysical experimentation may be influenced by the interaction between an absolute internal scaling mechanism and parameters set by the experimenter, such as scaling method and range of stimulus intensity.

Prediction of Individual Loudness Exponents from Cross-Modality Matching

1988 ◽  
Vol 31 (4) ◽  
pp. 605-615 ◽  
Author(s):  
Rhona P. Hellman ◽  
Carol H. Meiselman
Keyword(s):  
Power Function ◽  
Magnitude Estimation ◽  
Close Agreement ◽  
Absolute Magnitude ◽  
Line Length ◽  
Normal Hearing ◽  
Magnitude Production ◽  
Loudness Growth

An investigation of the relation among individual power-function exponents for 51 adults with normal hearing was undertaken. Three different psychophysical procedures were employed: absolute magnitude estimation (AME), absolute magnitude production (AMP), and cross-modality matching (CMM) between loudness and perceived length. From these procedures, loudness exponents obtained directly from measurements of AME and AMP of loudness were compared to exponents predicted from CMM and AME of perceived length. The means of the distributions of measured and predicted exponents were found to have an identical value of 0.56. Moreover, more than half of the differences between the predicted and measured exponents ranged from -.07 to +.09, giving measured deviations that extend from - 12.5 to 16%. The close agreement between the measured and predicted means, ranges, and distributions of exponent values implies that CMM combined with line-length information can be used with success to determine an individual's rate of loudness growth.

Magnitude Estimation and Cross-Modal Matching of Lingual Vibrotactile and Auditory Sensation

1989 ◽  
Vol 32 (3) ◽  
pp. 698-702 ◽  
Author(s):  
Daniel Harris ◽  
Donald Fucci ◽  
Linda Petrosino
Keyword(s):  
Auditory Stimulus ◽  
Magnitude Estimation ◽  
Sensory Processing ◽  
Test Site ◽  
Systematic Investigation ◽  
Thenar Eminence ◽  
Stimulus Range ◽  
Psychophysical Scaling ◽  
Scaling Methods ◽  
Response Biases

The present experiment was a preliminary attempt to use the psychophysical scaling methods of magnitude estimation and cross-modal matching to investigate suprathreshold judgments of lingual vibrotactile and auditory sensation magnitudes for 20 normal young adult subjects. A 250-Hz lingual vibrotactile stimulus and a 1000-Hz binaural auditory stimulus were employed. To obtain judgments for nonoral vibrotactile sensory magnitudes, the thenar eminence of the hand was also employed as a test site for 5 additional subjects. Eight stimulus intensities were presented during all experimental tasks. The results showed that the slopes of the log-log vibrotactile magnitude estimation functions decreased at higher stimulus intensity levels for both test sites. Auditory magnitude estimation functions were relatively constant throughout the stimulus range. Cross-modal matching functions for the two stimuli generally agreed with functions predicted from the magnitude estimation data, except when subjects adjusted vibration on the tongue to match auditory stimulus intensities. The results suggested that the methods of magnitude estimation and cross-modal matching may be useful for studying sensory processing in the speech production system. However, systematic investigation of response biases associated with vibrotactile-auditory psychophysical scaling tasks appears to be a prerequisite.

Magnitude Estimation of Loudness I Application to Hearing Aid Selection

1984 ◽  
Vol 27 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Daniel Geller ◽  
Robert H. Margolis
Keyword(s):  
Magnitude Estimation ◽  
Hearing Aid ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Octave Band ◽  
Loudness Function ◽  
Comfortable Loudness ◽  
Tonal Stimuli

Three experiments were conducted to explore the utility of magnitude estimation of loudness for hearing aid selection. In Experiment 1 the loudness discomfort level (LDL), most comfortable loudness (MCL), and magnitude estimations (MEs) of loudness were obtained from normal-hearing subjects. MCLs fell within a range of loudnesses that was relatively low on the loudness function. The LDLs were lower than previously published values. Experiment 2 was performed to identify the source of disparity between our LDL data and previously reported results. The effects of instructions are demonstrated and discussed. In Experiment 3 magnitude estimations of loudness were used to determine the loudness of tonal stimuli selected to represent ⅓ octave band levels of speech. Over the 500–4000 Hz range, the contributions of the various frequency regions to the loudness of speech appears to be nearly constant. Methods are proposed for (a) predicting the frequency-gain response of a hearing aid that restores normal loudness for speech for the hearing-impaired listener and (b) psychophysically evaluating the compression characteristic of a hearing aid.

The listener's temperament and perceived tempo and loudness of music

2009 ◽  
Vol 23 (8) ◽  
pp. 655-673 ◽  
Author(s):  
Joanna Kantor‐Martynuska
Keyword(s):  
Magnitude Estimation ◽  
Line Segment ◽  
Emotional Reactivity ◽  
Magnitude Production ◽  
Music Preferences ◽  
Previous Version ◽  
Numerical Scale ◽  
The Relationship ◽  
Recent Version ◽  
Subjective Level

The relationship between the listener's temperament and perceived magnitude of tempo and loudness of music was studied using the techniques of magnitude production, magnitude estimation scaling and cross‐modal matching. Four piano pieces were presented at several levels of tempo and loudness. In Study 1, participants adjusted tempo and loudness of music to their subjective level of comfort. In Study 2, participants estimated these parameters on a numerical scale and matched the length of a line segment to the estimates of these musical features. The results showed significant correlations of selected aspects of perceived tempo with perseveration and endurance as well as of selected aspects of perceived loudness with endurance and emotional reactivity. Perceived tempo and loudness, as measured by magnitude production and cross‐modal matching tasks, do not seem to systematically correlate with the six formal characteristics of behaviour distinguished in the most recent version of the Regulative Theory of Temperament (RTT). Additionally, there is some evidence that they are selectively associated with reactivity and activity, the dimensions of a previous version of the RTT. The study extends the methodology of research on music preferences and the stimulatory value of music. Copyright © 2009 John Wiley & Sons, Ltd.

Auditory Psychophysical Scaling Exposure Effects: Magnitude Estimation and Cross-Modal Matching

1988 ◽  
Vol 66 (2) ◽  
pp. 643-648 ◽  
Author(s):  
Donald Fucci ◽  
Daniel Harris ◽  
Linda Petrosino ◽  
Elizabeth Randolph-Tyler
Keyword(s):  
Magnitude Estimation ◽  
Dorsal Surface ◽  
Thenar Eminence ◽  
Vibrotactile Stimulus ◽  
Matching Task ◽  
Estimation Task ◽  
Psychophysical Scaling ◽  
The Cross ◽  
The Right ◽  
Age Range

The purpose of the present study was to investigate possible effects of exposure upon suprathreshold psychological responses when auditory magnitude estimation and cross-modal matching with audition as the standard are conducted within the same experiment. Four groups of 10 subjects each whose over-all age range was 18 to 23 yr. were employed. During the cross-modal marching task the Groups 1 and 2 subjects adjusted a vibrotactile stimulus presented to the dorsal surface of the tongue and the Groups 3 and 4 subjects adjusted a vibrotactile stimulus presented to the thenar eminence of the right hand to match binaurally presented auditory stimuli. The magnitude-estimation task was conducted before the cross-modal matching task for Groups 1 and 3 and the cross-modal matching task was conducted before the magnitude-estimation task for Groups 2 and 4. The psychophysical methods of magnitude estimation and cross-modal matching showed no effect of one upon the other when used in the same experiment.

Effects of speech signal content and speaker gender on acceptance of noise in listeners with normal hearing

2011 ◽  
Vol 50 (4) ◽  
pp. 243-248 ◽  
Author(s):  
Patrick N. Plyler ◽  
Lynzee N. Alworth ◽  
Tabitha P. Rossini ◽  
Kathryn E. Mapes
Keyword(s):  
Speech Signal ◽  
Normal Hearing

scholarly journals The effect of exposure to lingual vibrotactile magnitude estimation on lingual vibrotactile magnitude production results

1985 ◽  
Vol 23 (3) ◽  
pp. 199-201 ◽  
Author(s):  
Donald Fucci ◽  
Linda Petrosino ◽  
Daniel Harris ◽  
Elise M. McMath
Keyword(s):  
Magnitude Estimation ◽  
Magnitude Production

Using Psychophysics to Design Speech Warnings

2000 ◽  
Vol 44 (22) ◽  
pp. 698-701
Author(s):  
E. Hellier ◽  
B. Weedon ◽  
J. Edworthy ◽  
K. Walters
Keyword(s):  
Power Function ◽  
Magnitude Estimation ◽  
Power Law ◽  
Warning Signal ◽  
Acoustic Parameter ◽  
Psychophysical Scaling ◽  
The Relationship ◽  
Power Function Exponent

An experiment is reported which applies psychophysical scaling techniques to the design of speech warnings. Participants used magnitude estimation to rate the perceived urgency of computer generated warning signal words (Deadly, Danger, Warning, Caution, Note) that varied systematically in speed. Stevens (1957) Power Law was used to model the relationship between changes in the acoustic parameter and changes in the perceived urgency of a particular signal word. The value for warning designers of the power function exponent, which quantifies and predicts the effect of acoustic changes on perceived urgency, is discussed.

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