A High Speed Level Recorder for Acoustic Measurements

1935 ◽  
Vol 6 (3) ◽  
pp. 121-129 ◽  
Author(s):  
E. C. Wente ◽  
E. H. Bedell ◽  
K. D. Swartzel
Keyword(s):  
High Speed ◽  
Acoustic Measurements ◽  
Speed Level ◽  
Level Recorder

A New High Speed Level Recorder

1949 ◽  
Vol 21 (2) ◽  
pp. 91-93 ◽  
Author(s):  
P. V. Bruel ◽  
Uno Ingård
Keyword(s):  
High Speed ◽  
Speed Level ◽  
Level Recorder

scholarly journals A High Speed Level Recorder and Some of Its Uses in Acoustical Measurements

1933 ◽  
Vol 5 (1) ◽  
pp. 65-65 ◽  
Author(s):  
E. C. Wente ◽  
E. H. Bedell ◽  
K. D. Swartzel
Keyword(s):  
High Speed ◽  
Speed Level ◽  
Level Recorder

Some Effects of Tactile and Auditory Alterations on Speech Output

1963 ◽  
Vol 6 (4) ◽  
pp. 369-378 ◽  
Author(s):  
Robert L. Ringel ◽  
M. D. Steer
Keyword(s):  
High Speed ◽  
Sensory Information ◽  
Peak Level ◽  
Normal Subjects ◽  
Simultaneous Administration ◽  
Oral Region ◽  
Speech Output ◽  
Sensory Disturbances ◽  
Speed Level ◽  
Level Recorder

This investigation studied the effects on articulation, duration, average peak level, and fundamental frequency of speech demonstrated by normal subjects when oral region tactile and/or auditory sensory information is altered. Thirteen female subjects read a standard passage under the following six conditions: (a) control; (b) binaural masking; (c) topical anesthetization of the oral region by application of Xylocaine HCl 4%; (d) local anesthetization of the oral region by bilateral mandibular and infra-orbital nerve block techniques employing Xylocaine HCL 2%; (e) simultaneous administration of conditions b and c; (f) simultaneous administration of conditions b and d. Recorded speech samples for all conditions were subjected to analysis by use of a high speed level recorder, a phonation timer, and an oscillographic technique. The speech samples were also analyzed for articulatory deviations by a panel of judges. Statistical analysis of the data indicated that significant alterations in average peak level, articulation, and rate variability occur under conditions of altered tactile sensation. Similar trends were also noted for the mean syllable duration and phonation/time ratio variables. In addition it was found that the effects of multiple sensory disturbances are cumulative in nature for certain speech output variables.

Acoustic Measurements of High-Speed Jets from Rectangular Nozzle with Thrust Vectoring

AIAA Journal ◽  
2009 ◽  
Vol 47 (6) ◽  
pp. 1482-1490 ◽  
Author(s):  
Adam E. Goss ◽  
Jérémy Veltin ◽  
Jaehyung Lee ◽  
Dennis K. McLaughlin
Keyword(s):  
High Speed ◽  
Acoustic Measurements ◽  
Thrust Vectoring ◽  
Rectangular Nozzle

Probability of Ship High-Runs from Phase-Space Data

2019 ◽  
Author(s):  
Ioannis Kontolefas ◽  
Kostas J. Spyrou
Keyword(s):  
Phase Space ◽  
Coherent Structures ◽  
High Speed ◽  
Statistical Information ◽  
Motion Patterns ◽  
Following Seas ◽  
Probability Calculation ◽  
Speed Level ◽  
Surf Riding ◽  
Space Data

A clustering scheme has been applied for capturing qualitatively different surge motion patterns in the phase space. The scheme enables the identification of “high-run” incidents as soon as such motions are triggered and while their phenomenology has not yet been well developed. A “high run” is a surf-riding–like behavior, appearing in irregular following seas. The concept of finite-time coherent sets is exploited for deriving estimates of the probability of high-runs. The method is verified by identifying independently the corresponding hyperbolic Lagrangian coherent structures; then, consistency is sought between the two approaches. An important feature of the method is that it does not rely on the use of some empirical criterion for the high-run threshold, such as one based on the exceedance of an arbitrary high-speed level. Despite its computational burden, the proposed scheme offers “objective” statistical information on a ship’s high-run tendency that can be used for benchmarking simpler (approximative) probability calculation schemes.

Probability of Ship High-Runs from Phase-Space Data

2019 ◽  
Author(s):  
Ioannis Kontolefas ◽  
Kostas J. Spyrou
Keyword(s):  
Phase Space ◽  
Coherent Structures ◽  
High Speed ◽  
Statistical Information ◽  
Motion Patterns ◽  
Following Seas ◽  
Probability Calculation ◽  
Speed Level ◽  
Surf Riding ◽  
Space Data

A clustering scheme has been applied for capturing qualitatively different surge motion patterns in the phase space. The scheme enables the identification of “high-run” incidents as soon as such motions are triggered and while their phenomenology has not yet been well developed. A “high run” is a surf-riding–like behavior, appearing in irregular following seas. The concept of finite-time coherent sets is exploited for deriving estimates of the probability of high-runs. The method is verified by identifying independently the corresponding hyperbolic Lagrangian coherent structures; then, consistency is sought between the two approaches. An important feature of the method is that it does not rely on the use of some empirical criterion for the high-run threshold, such as one based on the exceedance of an arbitrary high-speed level. Despite its computational burden, the proposed scheme offers “objective” statistical information on a ship’s high-run tendency that can be used for benchmarking simpler (approximative) probability calculation schemes.

scholarly journals Mechanisms of ultrasonic de-agglomeration of oxides through in-situ high-speed observations and acoustic measurements

2021 ◽  
pp. 105792
Author(s):  
Abhinav Priyadarshi ◽  
Mohammad Khavari ◽  
Tungky Subroto ◽  
Paul Prentice ◽  
Koulis Pericleous ◽  
...  
Keyword(s):  
High Speed ◽  
Acoustic Measurements
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