The presentation by Dinesh and Divyansh discusses the working principles, key components, and potential improvements of multimedia speakers. It explains how electrical audio signals are converted into sound through vibrations of speaker components, and highlights components such as the speaker cone, voice coil, tweeter, and woofer. The scope for improvement includes enhancing sound quality and improving wireless connectivity.

1. THE MURPHY
MULTIMEDIA SPEAKER
Presentation By : Dinesh(23123) and Divyansh (23124)
Group : B-12

2. This presentation focuses on the
Working Principle , Key
Components and Scope of
Improvements in the Multimedia
Speaker.
INTRODUCTION

3. 3
ELECTRICAL SIGNAL
An electrical audio signal is received by the speaker and sent to the internal
components. This signal contains information about the sound , such as its
frequency, amplitude, and phase.
VIBRATION
The speaker components vibrate in response to the electrical signal creating
sound waves. These vibrations are generated by a diaphragm or cone that
moves back and forth rapidly.
WORKING PRINCIPLE

4. 4
SOUND AMPLIFICATION
The created sound waves are amplified and projected into the surrounding
environment, producing audible sound. This amplification process ensures that
the sound produced by the speaker is loud and clear.
Finally the produced and amplified sound is transmitted with the properly
maintained voice tone and quality.
WORKING PRINCIPLE

5. 1. Speaker Cone :
The cone is responsible for generating sound
waves by vibrating in response to electrical
signals.
2. Voice Coil :
The voice coil can be called the heart of the
speaker. It is the component that causes the
diaphragm, or speaker cone, to move and
produce sound.
COMPONENTS

6. 6
3. Tweeter :
Produces high-frequency sounds, ensuring
smooth and detailed reproduction of musical
instruments and vocals.
4. Woofer :
Handles low-frequency sounds, delivering
deep and rich bass for a complete audio
experience.
COMPONENTS

7. 7
5. Transformer :
Audio transformers are used to transmit sound
signals from the primary to secondary winding
with high accuracy and minimal distortion.
6. Crossover :
Divides the audio signal into separate
frequency ranges and directs them to the
correct driver for optimal sound performance.
COMPONENTS

8. 8
7. Amplifier :
The purpose of an amplifier is to receive a
small electrical signals and enlarge or
amplify it.
8. Magnet :
The magnet provides the magnetic field
against which the voice coil interacts. Some
advanced speakers may even have
electromagnets restored in them.
COMPONENTS

9. 1. Sound Quality :
Continuous improvement in sound quality is a fundamental goal
for music speakers. This includes enhancing clarity, accuracy,
and the ability to reproduce a wide range of frequencies.
Research and development efforts may focus on refining speaker
SCOPE OF IMPROVEMENT

10. 10
2. Wireless Connectivity :
With the growing popularity of wireless audio systems, improving
the reliability, range, and quality of wireless connectivity is crucial.
Advancements in Bluetooth technology, Wi-Fi connectivity, and
other wireless protocols can lead to better and more seamless
integration with various devices.
SCOPE OF IMPROVEMENT

11. 11
THANKS