The Intelligent Acoustician Microphone is an IOT based system, which consists of sound detection sensors, Arduino Uno development board, Arduino Motor Shield, RKS 564 Stepper Motor, Threaded Rod and Pin Hex Security grub screw. The voice frequency of the speaker is sensed from the sound detection sensors used. The frequency of the sound is considered for making an automatic setting. The next phase concentrates on sending notification to notify arduino motor shield. Then concentrates on the lifting mechanism, the automation process. The last two phases involve testing the various features of the trained System and concentrates on calibrating the maximum and minimum height of the microphone.

ANATOMY OF INTELLIGENT ACOUSTICIAN MICROPHONE

To design an intelligent and adaptable acoustic system, “An IOT Based Intelligent Acoustician Microphone” for the benefit of public communication. After the era of acoustic megaphones, the era of microphones took over. But still the means of communication had been facing several issues. The need of adjusting the microphone manually every time the speaker approaches the microphone was a noticeable problem in a public meeting or occasion. The speaker faces difficulty in adjusting the microphone’s direction and angle. The current microphone in use lacks the intelligence in processing.

The diagram above provides visual clarity of the proposed system.

1. The voice frequency of the speaker is sensed.
2. Detects the sensor which senses the prescribed frequency.
3. Concentrates on sending notification to notify ardino motor shield.
4. Concentrates on the lifting mechanism, the automatic phase.
5. Testing the various features of the trained System.
6. Concentrates on calibrating the maximum and minimum height of the microphone.

Our work addresses the issues of current microphones, no matter the purpose, or place of application it assesses the speaker’s height and does necessary adjustments so as to ensure effective transmission of sound waves. In spite of the area 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 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 on all occasions.

Methodology

At the implementation stage, the entire set up of a Microphone with a black power box, Sound Detection Sensors mounted on either side of the central microphone, a cable, Arduino and motor shield, a RKS 564 stepper motor and a threaded rod with a Pin Hex Security grub screw. The work has a manual mode and an automatic mode. A button can be moved in a downward direction and manual mode can be activated, where the user can move the direction of the microphone in a desired direction and angle. When the button is moved in a upward direction, the automatic mode is activated. These are enabled by programming the arduino. The frequency levels of the SD Sensors are detected, in the automatic mode and   the shield is used to operate the RKS 564 stepper motor through the interactions to the arduino and the lifting mechanism is performed.

Finally, as output the microphone assess the speaker’s height based on the speaker’s voice frequency. If more than one speaker, its senses the nearest speaker with the voice which is higher than 50 DB and adjusts the microphone as per that. The self adjusting mechanism is performed by the Motor shield which operates the RKS 564 Stepper motor and lifts the rod and adjust the angle of the rod holding the microphone, thereby providing an uninterrupted and clear transmission. The device guarantees user friendly nature to all the users irrespective of their ages or gender or educational qualification. It instills confidence in the user.  

A BREAKTHROUGH MECHANISM OF INTELLIGENT ACOUSTICIAN MICROPHONE

The power box should be switched on and made sure about the voltage settings. The speaker himself could choose the settings, either he/she could opt the manual setting by moving a button manually or would default opt with auto settings. As per the users option the system would be programmed. The sound energy of the sound detector sensor on top of the microphone and the bottom of the microphone are sensed and based on the sound energy detected the microphone will be adjusted height wise either upwards and downwards and angle wise.  If the speaker is tall, the top sound sensor would detect maximum volume and give instructions to the motor to change the position of the mike, until there is equal amount of volume between the two sound sensors symbolizing that the microphone is set to the right spot. The same would happen to a short speaker/User.

The main feature of the intelligent processing is the height adjustment mechanism; here the Arduino and motor shield, a RKS 564 stepper motor and a threaded rod with a Pin Hex Security grub screw are involved. The frequency levels of the SD Sensors are detected, in the automatic mode and the shield is used to operate the RKS 564 stepper motor through the interactions to the arduino and the lifting mechanism is performed. The shield is the device which operates the stepper motor and sends the information to the Arduino which is placed beneath. Depending upon the motor used, revolutions are performed.  Arduino has two programs saved onto it. The first for the manual setting. This allows the microphone to move up and down with the switch of a button. The other one is for the automatic part which consists of programming SD sensors to pick up a person’s voice and move it to the correct height.

The threaded rod which is placed at the centre of the tube consists of a nylon spacer on the tip. The microphone is placed n to a small rod which has a nut welded on to the bottom. The threaded rod is placed between the nuts. When the motor spins in one direction, the nut will be moved up or down.

Conclusion

We create effective strategies and memorable experiences for the speakers who use Intelligent Acoustician Microphone, by providing independence for a kid or a common man or persons with neuro disorders to handle the crowd with confidence for effective communication. This change would resonate in the society and pave way for advancements in microphone technologies and provide smarter gatherings and occasions.