Sound quality of brass‐wind musical instruments

2003 ◽  
Vol 114 (4) ◽  
pp. 2410-2410
Author(s):  
Robert W. Pyle
Keyword(s):  
Sound Quality ◽  
Musical Instruments

scholarly journals ORGANOLOGI ALAT MUSIK TONGKEK DI LOMBOK TIMUR

2021 ◽  
Author(s):  
Hary Murcahyanto ◽  
Yuspianal Imtihan ◽  
Muhammad Alfian Nur Khair
Keyword(s):  
Data Collection ◽  
Qualitative Method ◽  
Raw Materials ◽  
Sound Quality ◽  
Musical Instruments ◽  
Data Display ◽  
Analysis Techniques ◽  
Collection Data ◽  
The Subject

Organology of Tongkek musical instruments in Pancor Subdistrict Selong East Lombok Province West Nusa Tenggara has an important role to be held, this research focuses on the process of making and processing the ignition of Tongkek musical instruments. This type of research uses the descriptive qualitative method. The subject in this study is The Tongkek Craftsman. Data collection techniques used in this research are interviews, laboratory tests, and documentation. Examination of the validity of data in this study using source triangulation. Data analysis techniques used consist of four stages, namely, data collection ( data collection), reduction (data reduction), Data display (presentation of data), and Conclusion drawing/verification (examiner conclusion and verification). The results of this study contain the organology of Tongkek musical instruments in detail and detail. First, in the manufacturing process, the craftsmen pay attention to the quality of tools and materials to be used, such as the degree of dryness, thickness, the sharpness of the knife, and the diameter of the bamboo used. Second, the process of logging, the most important thing in the process of Tongkek is the sensitivity of taste in each craftsman. Good quality raw materials are also very supportive of sound quality in Tongkek. So with this research, a piece of Tongkek music will know Tongkek instruments better and understand the importance of caring for Tongkek musical instruments wisely, so that the use of Tongkek musical instruments can be used optimally and is expected to bring up the makers of Tongkek with good sound quality.

THE IMPACT OF ACOUSTIC OF SELECTED SPACES ON PERCUSSION INSTRUMENTS

Akustika ◽  
2020 ◽  
pp. 37-85
Author(s):  
Vojtěch Ondrejka ◽  
Tomáš Gergeĺ ◽  
Anna Danihelová ◽  
Martin Čulík ◽  
Dagmara Bednárová ◽  
...  
Keyword(s):  
Sound Quality ◽  
Musical Instrument ◽  
Musical Instruments ◽  
Acoustic Properties ◽  
Reverberation Time ◽  
Percussion Instruments ◽  
Percussion Instrument ◽  
The Impact ◽  
Physical Quantities

The results of the investigation of the room acoustic properties influence on the perception of the sound of percussion musical instruments are presented in the paper. At first, the acoustic properties of two rooms were determined without musical instrument. Subsequently, the acoustic properties of the rooms were determined during the presentation of cajon music. On the base of reverberation time (EDT, T30), Clarity C80, Definition D50 and bass index BI) we can conclude that the room of the Hron cinema is more suitable for musical presentation, but it cannot be considered as ideal one. The Royal Hall of Zvolen Castle has a smaller influence on the sound of a percussion instrument. The influence of room acoustic properties on the resulting sound of the instrument was evaluated only on the base of results obtained with using the objective methods by the physical quantities measurement. Finally, the design of these rooms modification is presented to achieve a better sound quality of percussion instruments.

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.

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 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 Reforestation of ‘Village Forest’ to Improve Sustaiability Creative Industries in Desa Siponjot

2021 ◽  
Vol 5 (2) ◽  
pp. 714-722
Author(s):  
Noverita Sprinse Vinolina ◽  
Antonio Marro Sipayung ◽  
Dardanila ◽  
Sondang Pintauli
Keyword(s):  
Forest Restoration ◽  
Raw Materials ◽  
Economic Value ◽  
Economic Benefits ◽  
Musical Instruments ◽  
Creative Industries ◽  
Raw Material ◽  
High Quality ◽  
The Village

This program is conducted to assist Siponjot Village while empowering the people of Siponjot Village to be able to utilize and maximize the benefit of the village forest. Village forest might support the availability of raw materials required for making musical instruments, such as high quality of wood, including how to process wood waste from making musical instruments to be used as creative souvenirs and improve the economic value. The raw material for production determined its results of the production of wood-based musical instruments. Thus, in order to produce a high quality tanginang, hasapi, and gondang, which previously began to be produced by arts crafts in the Sitangkubang area of ​​Siponjot Village, a high quality of raw materials is needed. The community service team surveyed the location of planting seeds for village forest restoration, provided socialization related to the importance of village forest cultivation and the suitability of the Siponjot Village area for the cultivation of these plants. Village forest restoration aims to maintain the beauty and beauty of the village. Implementation of village reforestation activities starting from socializing forest tourism and the strength of village forests to the community, followed by a discussion about village forest management and its economic benefits. Handover of a thousand units of forest plant seedlings given to the villagers of Siponjot as part of the forest restoration program in the area.

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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