A Study for Improving the Sound Quality of Vehicle Horns through Acoustic Characteristics Analysis and CAE Method Development

2013 ◽  
Author(s):  
Jong-Suh Park ◽  
Ki-Sang Chae
Keyword(s):  
Method Development ◽  
Sound Quality ◽  
Acoustic Characteristics ◽  
Characteristics Analysis

A Study on Consumer Characteristics of Korean consumers' Intention to purchase Luxury Brand

2019 ◽  
Vol 118 (8) ◽  
pp. 420-430
Author(s):  
Ji-Hun Lee ◽  
Bok-Hyun Moon ◽  
Mi-Sook Yang
Keyword(s):  
Structural Equation ◽  
Service System ◽  
Equation Model ◽  
Pricing Strategy ◽  
Luxury Brands ◽  
Negative Image ◽  
Intention To Purchase ◽  
Characteristics Analysis ◽  
Changing Times

This study aims to suggest marketing implications for the success of the luxury brands in the market.Questionnaire was conducted for 360 consumers interested in purchasing luxury goods. The collected data were verified for the appropriateness of the structural equation model and the causation of each concept.luxury brands should put more effort to improve the quality and type of products through various consumer characteristics analysis, and build a pricing strategy to match consumer characteristics with various pricing systems and payment methods. In addition, it is necessary to pay more attention to setting the service system worthy of their luxury images so that the service system can also take the luxury image. What's more, since most luxury consumers are those who value their personality and image rather than cost, so they should do their best at each step so as not to give the negative image of the company to the eyes of the consumers until the end. And it needs to continue their research for enhanced quality of the products and manage the image to sustain the image of the company over time, and make efforts to understand the way of expressing the changing images in step with the changing times and read the cultural trend.

Reassessing gender in Ogbe-Oloma

2021 ◽  
Vol 74 (2) ◽  
pp. 387-403
Author(s):  
Ronald P. Schaefer ◽  
Francis O. Egbokhare
Keyword(s):  
Sound Quality ◽  
Form Class ◽  
Nominal Form ◽  
Grammatical Number ◽  
Gender System

Abstract We re-assess the gender system of Ogbe-Oloma, an Edoid village variety of Nigeria. System exponents are prefixes that define form class and reflect grammatical number. We find that eight agreement classes undergird fourteen genders, while seventeen nominal form classes frame twenty-five number inflections. Prefix mapping from inflection to gender is non-isomorphic. Mapping is however constrained by syllable shape, CV- versus V-, and alliterative sound quality of prefix consonant, not vowel. In addition, several number inflections trigger agreement in multiple genders leading to one gender that exclusively refers to nouns with human reference.

scholarly journals A method for measuring the quality of friction skin impression evidence: Method development and validation

2021 ◽  
Vol 320 ◽  
pp. 110703
Author(s):  
H. Swofford ◽  
C. Champod ◽  
A. Koertner ◽  
H. Eldridge ◽  
M. Salyards
Keyword(s):  
Method Development ◽  
Method Development And Validation ◽  
Development And Validation

Sound Quality of Aircraft Cabin for VIP and Business Jets

2018 ◽  
Author(s):  
Nurkan Turkdogru Gurun ◽  
Hemang N. Sheth
Keyword(s):  
Prediction Model ◽  
Paired Comparison ◽  
Semantic Differential ◽  
Sound Quality ◽  
Subjective Perception ◽  
Subjective Test ◽  
Aircraft Cabin ◽  
Listening Tests ◽  
Potential Customers

This paper aims to identify the attributes that describe aircraft interior noise, determine most important psychoacoustic models that characterize cabin sounds, and construct a prediction model that can be utilized for VIP and business jets to evaluate subjective perception. In the first part, paired comparison listening tests and free verbalization are conducted with expert subjects who experienced VIP and business aircraft flight. The study generated a list of adjective pairs that describe perception of cabin sounds to be used for semantic differential listening tests. Multi-dimensional scaling is performed on paired comparison data. Results showed that subjects’ decisions can be categorized in loudness and annoyance dimensions which are not necessarily linearly associated. The second part of the study is the development of a sound quality prediction model for aircraft cabin. Semantic differential tests are conducted with potential customers. Objective sound quality metrics are correlated to subjective test responses using principal components regression. This model is found to be most effective explaining pleasantness, comfort, and loudness perception. It is intended to be utilized to modify/redesign noise control treatments and sound signature of an aircraft. All listening tests were conducted inside an aircraft cabin simulator considering the influence of visual content.

A Semantic Differential for Evaluating the Sound Quality of Fan Systems

2017 ◽  
Author(s):  
Carolin Feldmann ◽  
Thomas Carolus ◽  
Marc Schneider
Keyword(s):  
Principal Component ◽  
Semantic Differential ◽  
Sound Quality ◽  
Heat Pumps ◽  
First Case ◽  
Objective Metrics ◽  
Main Components ◽  
Air Conditioning Systems ◽  
The University

Fans are main components e.g. in heating, ventilating and air conditioning systems for vehicles or buildings, cooling units of engines and electronic circuits, and household appliances such as kitchen exhaust hoods or vacuum cleaners. End-users increasingly demand a high sound quality of their system or device. The overall objective of a recent research project at the University of Siegen is a multidimensional assessment of fan sound quality. In a first step an advanced novel semantic differential for the assessment of fan-related sounds is established with the aid of carefully designed jury tests. Eventually, this semantic differential is employed for sound quality jury tests of fans in kitchen exhaust hoods, heat pumps and air purifiers as a first case. Finally, a prediction model is suggested, which relates the outcome from the jury tests to objective metrics. A principal component analysis is carried out and yields five main assessment criteria with 23 relevant adjective scales. The results show that the perceived sound quality of fan systems is mainly determined by the loudness and tonality of the sound. The spectral content (represented by the sharpness) as well as the time structure (represented by the roughness) have no significant impact on perceived sound quality of the fan systems investigated.

Audio Synthesis and Sound Quality of Automotive Air-Conditioning Systems

2017 ◽  
Author(s):  
Antoine Minard ◽  
Christophe Lambourg ◽  
Patrick Boussard ◽  
Olivier Cheriaux
Keyword(s):  
Air Conditioning ◽  
Sound Quality ◽  
Automotive Air Conditioning ◽  
Air Conditioning Systems

scholarly journals Interaction of landscape space and indoors in architecture of the open-air concert hall “Mitava”

2021 ◽  
Vol 17 ◽  
pp. 55-67
Author(s):  
Aija Grietena
Keyword(s):  
Interdisciplinary Collaboration ◽  
Building Structures ◽  
Acoustic Characteristics ◽  
Concert Hall ◽  
Emotional Quality ◽  
Indoor Space ◽  
The Baltic ◽  
Wooden Structures

In the search for balancing factors in the art of environmental design between architecture, landscape architecture, and interiors needed to improve interdisciplinary collaborative planning and enhance the psycho-emotional quality of the environment, the study of landscape space-indoor interaction through comparative analysis and inductive reference is continued. On the Latvian scale, the new, 21st-century technological capabilities in the design and production of wooden structures in the architecture of the open air concert hall “Mītava”, constructed in 2019 on Pasta Island. The importance of the structure on the Baltic scale is emphasized by the unique design, which resembles a shell washed on the bank of the Lielupe River, large (<60m) arched timber continuous roof structures and high acoustic characteristics. Original building structures have opened up new opportunities for interaction between landscape space and indoor space, creating a broad, spatial synthesis. The realization of an artistically stylistic concept in the open-air concert hall “Mītava”, which is subordinated to the existing landscape space and supplemented with appropriate greenery, is considered a valuable contribution to the urban environment. The specific case study analyzed in detail underlines the importance of successful interdisciplinary collaboration in the harmonious interaction between landscape space and indoor.

scholarly journals МОДЕЛЬ ПРОЦЕСУ ВІДНОВЛЕННЯ ІНФОРМАЦІЇ З УШКОДЖЕНИХ НОСІЇВ

2018 ◽  
Vol 120 (2) ◽  
pp. 26-37
Author(s):  
В. Б. Швайченко ◽  
О. П. Гребінь ◽  
Н. Ф. Левенець
Keyword(s):  
Conceptual Model ◽  
System Modeling ◽  
Recovery Process ◽  
Sound Quality ◽  
Computer Processing ◽  
System Model ◽  
Information Recovery ◽  
Restoration Process ◽  
Processing Modes

Improving the quality of the restored information in the process of restoration and restoration of phonograms.Synthesis of the system model on the basis of analysis of the processes of restoration and restoration of phonograms from media of various types and computer processing. The characteristics of the conceptual model of the restoration and restoration of the phonogram are determined. The structure of the system model of the information recovery process is developed. A lot of concepts and connections between concepts are defined. The structure of the system modeling restoration and restoration of phonograms is defined. A conceptual model of the restoration and restoration process is proposed. The distribution of artifacts over the playback and processing modes of a phonogram is justified. Details of the type of content with features of the effect on the state of the phonogram.The solutions obtained are the basis of the methodology for carrying out the process of restoration and restoration of phonograms by the criterion of sound quality.

scholarly journals A Numerical Approach for Sound Quality of Vehicle Doors

2020 ◽  
Vol 25 (1) ◽  
pp. 9-16
Author(s):  
Erkut Yalçın ◽  
Halil Bilal ◽  
Ayhan Yağcı ◽  
Haluk Erol
Keyword(s):  
Sound Pressure ◽  
Sound Quality ◽  
Numerical Approach ◽  
Design Sensitivity ◽  
Point Of View ◽  
Vehicle Body ◽  
Fem Model ◽  
Body Development ◽  
Design Variables

A Vibro-Acoustic Finite Element Method (FEM) model capable of calculating the transient sound pressure generated by the door slam of a vehicle was developed in this study. A design sensitivity analysis (DSA) was performed for investigating the effects of major design variables on the related sound quality metrics. The methodology was developed using a sedan-car and its FEM model. This paper shows that a Computer Aided Engineering (CAE) model can be used as a rather powerful tool for giving design change decisions for the door components from sound quality point of view during vehicle body development according to psychoacoustic parameters.

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