Research suggests wireless signals are better for noise cancellation than conventional sound waves

By Digit NewsDesk | Updated Aug 29 2018
Research suggests wireless signals are better for noise cancellation than conventional sound waves
HIGHLIGHTS

As per a group of researchers from University of Illinois, one can bet better quality noise cancellation by using wireless signals. Currently headphones rely on sound waves to do the same.

Go from OpenAPI-to-GraphQL in 2 minutes

Create GraphQL interfaces in minutes and build mobile or client apps quicker. Leverage free, open source IBM Code Patterns.

Click here to know more

Headphones with Active Noise-cancelling (ANC) work by creating a sound wave, which is 180 degrees out of phase with the ambient sounds that are picked up by its microphones. This method is used by a majority of audio device manufacturers but this could soon change as researchers at the University of Illinois have come up with a new method that uses wireless signals to enable better quality ANC on headphones. Headphones pick up the outside noise via sound waves and produce out-of-phase waves to cancel out outside noises, however, the new research suggests using a microphone to capture the noise and using wireless technology to send it to an earphone so that it can quickly generate opposite soundwaves of better quality. You can read the thesis here.

Romit Roy Choudhury, a professor at University of Illinois told New Atlas, " (using the new technology) Our ear device gets the sound information in advance, and has much more time to produce a better anti-noise signal," As wireless signals travel way faster than sound waves, using a mic for picking up sounds seems like a good application. However, this might not be possible in all scenarios like when a person is walking in the street. The proposed method is said to be more suited for places like an office environment and an example could be cancelling out conversations that are taking place in a user’s vicinity. 

Sheng Shen, the lead author of the study, says, "the moment the device hears the sound it is sent out wirelessly." ECE Assistant Professor Haitham Hassanieh, a co-author on the paper says, "This is bound to change the way we think of noise cancellation, where networks of IoT sensors coordinate to enable quieter and more comfortable environments." The research will be presented at the Association for Computing Machinery Special Interest Group on Data Communication (ACM SIGCOMM) Conference this month, which is taking place in Budapest, Hungary.

Videos

Audiotechnica ATH AD 500X Review
logo
Digit NewsDesk

The guy who answered the question 'What are you doing?' with 'Nothing'.

Digit caters to the largest community of tech buyers, users and enthusiasts in India. The all new Digit in continues the legacy of Thinkdigit.com as one of the largest portals in India committed to technology users and buyers. Digit is also one of the most trusted names when it comes to technology reviews and buying advice and is home to the Digit Test Lab, India's most proficient center for testing and reviewing technology products.

We are about leadership-the 9.9 kind! Building a leading media company out of India.And,grooming new leaders for this promising industry.