ANALYTICAL STUDY OF CONFERENCE LOUDSPEAKER
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Meetings are a common activity that provides certain challenges when creating systems that assist them. Such is the case of the Speaker recognition, which can provide useful information for human interaction modeling, or human-robot interaction. Speaker recognition is mostly done using speech; however, certain contextual information can provide additional insights when a good loudspeaker is used which produces quality sound in a conference. In this paper, Simulations of different combinations of sound absorption and diffusion treatments have been carried out with the updated version of the software, ODEON 15. The panels were positioned in the meeting rooms following the guidelines of the DIN 18041 standard and the scientific literature. The results advise the application of absorptive materials on the ceiling or around the borders, creating a reflective middle area, and on the upper part of one the lateral walls, including the rear wall. Configurations with diffusers do not generally bring significant improvements. The Speech Transmission Index (STI) is a less sensitive parameter for the different acoustic scenarios, compared to Reverberation Time (T) and Clarity (C50). The research also outlined a design workflow, useful to successfully design meeting rooms and rooms for speech in general, which allows to determine the optimal number and location of acoustic panels and to minimize the costs.
TABLE OF CONTENTS
Title page
Approval page
Dedication
Acknowledgement
Abstract
Table of contents
CHAPTER ONE
- Introduction
- Background of the study
- Statement of the problem
- Aim and objectives of the study
- Significance of study
- Scope of the study
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 Concept of Loudspeaker
2.2 Historical background of loudspeaker
2.3 Review of different loudspeaker driver
2.4 Review of different types of loudspeaker
2.5 Audio system in a conference
2.6 The importance of high-quality audio systems in conference rooms
2.7 Key components of conference room audio systems
2.8 Factors affecting audio quality in conference rooms
2.9 Importance of high-quality conference room audio systems
2.10 Review of related studies
2.11 Guidelines on the optimal placement of absorbing, diffusive and reflective materials in a conference room
CHAPTER THREE
3.0 Materials and Methods
3.1 Case Studies
3.2 Parameters for Conference Room loudspeaker Acoustics Quality and Typical Values
3.3 Measurements
3.4 Equipment and Settin
3.5 Analysis of the Acoustic Measurement
3.6 Simulations
3.7 Calibration of the Models
3.8 Optimal Area for the Acoustic Materials
3.9 Configurations of the Acoustic Materials
CHAPTER FOUR
4.0 Results
4.1. Measurements
4.2 Simulations of the Different Acoustic Configurations
4.3 Optimal Configurations of Sound-Absorptive and Sound-Diffusive Panels
CHAPTER FIVE
- Conclusions
- Recommendation
5.3 References
CHAPTER ONE
1.0 Introduction
1.1 Background of the study
Meetings are essential in our society, from universities and industries, where they are commonly held to coordinate professional matters such as projects, researches, funds, etc., to informal meetings where people discuss everyday issues. In all cases, the person of interest is the one who is speaking because she/he is (usually) the center of attention of all participants. Moreover, communication takes place not only through voice, but also with certain behaviors or gestures that we can observe. Interpreting this audiovisual information in order to estimate the person of interest or active speaker can be useful in several scenarios, such as human-robot interaction, multi-media, among other (Nijs et al., 2011).
A conference room sound system works at its optimum when it is designed specifically for the room by professional audio engineers. To get the most out of audio conferencing, companies of any size should consider using a firm that is in business to provide state-of-the-art sound systems to entities that need them. Companies such as Data Projections that have years of experience in designing and installing systems, training clients in their use, and providing support after the fact are essential for getting the best results. Leading edge sound systems give a company the tools it needs to make it possible for everyone involved in a conference call to hear each other clearly. The effectiveness of any meeting or collaborative effort is only as good as its weakest link. Clear audio facilitates communication, thereby promoting productivity (Nijs et al., 2011).
For a conference room, sound system design is based on a number of factors. The size and shape of the room, for example. Other factors involve the acoustics of the room, the number of people that will participate in the conference call at any given time, and the budget constraints of the company needing the equipment.
A robust conference room sound system will improve workflow and communications during a meeting. It is a useful way to bring people together that doesn’t require traveling and is not restrained by geographical borders. It will bring the world to your doorstep. In this information age, being able to communicate in a timely fashion is a critical factor in the success of business (Bradley et al., 2019).
Technology advancements have made it possible for businesses to stay competitive and profitable. This is true whether it is the use of video streaming technology or conference room sound system engineering. With the right technology, a meeting room can become a rich environment for collaboration and planning. Gone are the days of struggling to get a conference call to work and having to endure distorted sound. Enjoy crisp, clear audio by upgrading your conference room sound today, with the technology of tomorrow (Bradley et al., 2019).
1.2 Statement of the problem
In order to hold a conference meeting efficiently and meaningful, great sound is essential, not only for interaction, but also for speech intelligibility. This is the case no matter if media sound is being played or participants are connected via conference.
Often the enclosed conference room itself influences the loudspeaker intelligibility. Walls and ceilings reflect sound, especially if they are made of hard elements such as glass or concrete. In this case it is particularly important to choose the right sound system. For this purpose, it is important to analyze the study of conference loudspeaker.
1.3 Aim and objectives of the study
The aim of this study is to carry out the analytical study of conference loudspeaker.
The objectives of the study are:
- To determine the optimal placement of sound absorbing and sound diffusive material for the effective loudspeaker design of two medium sized conference rooms characterized by poor acoustic conditions
- To determine the directivity pattern measurement of a loudspeaker used in a conference room.
- To provide a means of having a good audio system in a conference room.
1.4 Significance of study
This study will serve as a means of improving the audio system of a conference room. It is used as a means of increasing the effectiveness of sound masking, choosing the loudspeakers with wider band.
The study will also serve as a means on helping sound engineers in creating wide band loudspeakers to respond the sound masking systems wide spectrum that also has enough acoustic power to cover maximum floor area and to create homogeneously sound ambiance. This will alleviate the engineer design and the total quantity of the speakers which will make the entire system less complex and more effective (Bradley et al., 2019).
1.6 Scope of the study
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "analytical study of conference loudspeaker" is also available. Order full work to download. Chapter two of "analytical study of conference loudspeaker" consists of the literature review. In this chapter all the related work on "analytical study of conference loudspeaker" was reviewed.
CHAPTER THREE: The complete chapter three of "analytical study of conference loudspeaker" is available. Order full work to download. Chapter three of "analytical study of conference loudspeaker" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "analytical study of conference loudspeaker" is available. Order full work to download. Chapter four of "analytical study of conference loudspeaker" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of "analytical study of conference loudspeaker" is available. Order full work to download. Chapter five of "analytical study of conference loudspeaker" consist of conclusion, recommendation and references.
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