Patent AU-2020103899-A4 (AU)
Title: An intelligent acoustic serenity using self adjustable user-friendly iot embedded microphone
Inventor: BALAKRISHNAN S
IPC: G10L21/00
Filed: 2020-12-04
Granted: 2021-02-11
Abstract: AN INTELLIGENT ACOUSTIC SERENITY USING SELF ADJUSTABLE USER
FRIENDLY IOT EMBEDDED MICROPHONE 
ABSTRACT 
The development of telephone gave way to the invention of microphone. Early days it 
was just a device that enabled to transfer human voice over a pair of wires. But, history states 
that the term "microphone" was first applied to the stethoscope by Sir Charles Wheatstone in 
1827. The generation of microphones states back from the era of Carbon Microphones to 
wireless microphones. Though lot of changes had been done on to the design for better 
transmission. Still few areas of handling the microphone remain untouched.  
The stages of microphones from Carbon Microphone, Double Button Carbon 
Microphone, Crystal Microphone, Condenser Microphones, The Bottle Microphones:- the first 
cardioid microphone, The Telly: switchable microphone, Dynamic Microphones: moving coils 
and ribbons. Ribbon Microphones and Electret Microphones after these versions, the second 
generation gave importance for directionality and Miniaturization. Shotgun Microphones and 
Wireless microphones are a result of that. But still the usage scenario of microphones are not 
assessed and addressed to the fullest. The microphone types can be chosen based on our 
purpose. But since microphones are used in various public places, the speaker using the 
microphone also should be taken into consideration which had not been addressed till date.  
India being a developing nation, where the literacy rates to 74.4%. Most of them remain 
unaware of technical skills and knowledge to handle electronic equipments, and so it would be 
tedious task to adjust a microphone to a perfect direction or angle, so as to avoid noise problems 
and to impart continuous and proper transmission of their sound waves.  
Our work addresses the issues of current microphones, no matter whatever is the purpose, or 
place of application it assess the speakers height and does necessary adjustments so as to ensure 
effective transmission of sound waves. In spite of the place of deployment, it considers the user, 
our work is user friendly in all aspects, children, visually impaired, people with neuro 
development disorder, and the elderly persons also can easily use this to communicate because 
it does not require any other technician's guidance or any other external person's help, and 
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proves it different than the usual ones we have seen. Our work eases the task of acoustic 
technicians, since we employ IOT and do the smart processing of sensing the speaker's sound 
signals and adjust the directionality angle by itself. Our approach would be a breakthrough in 
the era of conventional microphones. This would equip the users using the microphone with 
confidence and avoid embarrassing occasions and pave way for effective communication in all 
occasions.  
START 
Serisesourkl above 50 DB if 
from Upper microphone 
UPPER SDSENSORS 
SOUND DETECTION Serisesound above50 DB 
SENSORS from lower Microphone 
LOWERSDSENSORS 
ARDINO UNO 
ARDINO MOTOR SHIELD 
I - Manual 
CaibaesILifting Mechanism 
PWE 
Calibrates .Atrai IAutomatic 
Battery 
Figure: Architectural Diagram 
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