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By:

Rajendra Joshi

3 December 2024 at 3:50:26 am

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester,...

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester, has been developed by senior chemist Dr Kalyanrao Garadkar of Shivaji University, along with Dr Sandeep Sable and Dr Rohant Dhabbe of Jaysingpur College, and Dr Chandrala Jatkar of the D K T E Society’s Textile and Engineering Institute, Ichalkaranji. The device is designed to test the sound absorption capacity of professional acoustic systems used in recording studios, theatres, auditoriums and soundproof chambers. Until now, the effectiveness of such sound-absorbing installations has largely been assessed through experience and trial-and-error after installation. The newly developed portable tester allows for immediate and scientific evaluation of sound absorption performance once the system is installed. Sound-absorbing sheets and panels are widely used in theatres, studios and vocal recording rooms to absorb echo around microphones and create a controlled acoustic environment, enabling cleaner and more professional audio output. The new device can be used to evaluate a wide range of absorbers, including perforated foam, fibre, fabric, membranes, panels and resonant absorbers, helping improve the quality and effectiveness of acoustic materials. Explaining the working of the device, Dr Garadkar said that the human audible frequency range extends from 20 Hz to 20 kHz. The device generates sound waves within this spectrum and projects them onto the acoustic material under test. The sound waves that are not absorbed are detected by a microphone and displayed on the screen in the form of current or voltage readings. This enables users to instantly determine whether the sound absorption system is functioning as intended and make corrective interventions if required. The researchers said the device would also be useful for those engaged in acoustic fabrication and sound absorption research. Apart from being portable and easy to transport, the device is also cost-effective, making it suitable for field applications. The team expressed confidence that it would prove highly useful in the sound system testing sector. Shivaji University’s in-charge Vice-Chancellor Dr Suresh Gosavi and in-charge Pro Vice-Chancellor Dr Jyoti Jadhav congratulated the research team on securing the patent.

PLAIN SPEAK

“We do not know what will happen to Pakistan, but people are saying that this country will break into five parts and disintegrate. Some people say that violence and bloodshed have been taking place in Pakistan ever since it was born. They are also saying that Pakistan is now 80 years old and that country's time was up as whoever is born, dies.”

Indresh Kumar, Leader, RSS


“The tragic loss of innocent lives including women and children on both sides is a stark and heartbreaking reminder of the human cost of conflict. With every passing moment of escalation, more lives hang in the balance. It is painfully clear that there can be no military solution, only more suffering. I especially appeal to the Prime Minister of India to choose dialogue to end hostilities. Now, more than ever peaceful co-existence and engagement must serve as our only instrument.”

Mehbooba Mufti, Chief, PDP


“In a multi-polar world with shifting alliances, we had a ‘fly-by-night’ concept. The same can be seen with alliances. But Kautilya imagined then that this will be our shifting. Which country knows better than Bharat. We always believe in global peace, global fraternity, global welfare.”

Jagdeep Dhankhar, Vice President


“We urge both sides to act in the larger interest of peace and stability, observe international law, including the UN Charter, remain calm, exercise restraint and refrain from taking actions that may further complicate the situation. We stand ready to work with the rest of the international community to continue playing a constructive role in easing the current tensions.”

Lin Jian, Spokesperson, Foreign Ministry, China

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