This little Bluetooth device wants to save your vocal cords

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If you’ve ever been to a loud event — frat night, rave, basketball game — and come home to find your voice, the scientists at Northwestern University have you covered.

In this week’s Proceedings of the National Academy of Sciences, they announce what they say is the first postage stamp-sized wireless device to monitor your voice usage if you anticipate shouting, orations, cheers, lectures or any other type of intense conversation. situation.

Attached to the chest, the soft and flexible prototype can detect and record subtle vibrations generated as a result of your vocal activity. Then, via Bluetooth, it alerts a wristband synced to the app when you reach what the team calls a “voice budget”, which is personalized based on individual voice habits. You can also choose to wear a smartwatch for alerts instead of the device-specific wristband.

Either way, once alerted, you’ll know it’s time to rest your voice before you risk injuring your vocal cords.

“It’s easy for people to forget how much they use their voice,” said Theresa Brancaccio, voice expert and co-author of the study. said in a press release. “Your voice is part of your identity, whether you are a singer or not. It is an integral part of everyday life and deserves to be protected.”

Northwestern University

Other voice monitoring devices use microphones that either raise privacy concerns or are too bulky for use in many real-world environments, researchers say.

In contrast, this invention is cordless, small, foldable, and easier to hide depending on what you’re wearing. “Once it’s on, I don’t even notice it,” Brancaccio said. “It’s super light and easy.”

And, while this device could benefit anyone who anticipates having to compete with booming music, loudspeakers or parade noises with only the natural sound of their voice, it can be especially useful for those who need to talk loud all the time for work.

Think of the call center workers who constantly have to talk insistently on the phone, the professors who frequently lecture students in large classrooms, and the pop singers who sing impressive notes to cheering crowds. At worst, a singer’s career could take a serious hit voice fatigue because such muscle tension can prevent them from easily hitting the same notes as before.

This is probably why the team tested their prototype on a team of classical singers ranging from deep bass to high sopranos. Each subject wore the device while humming, singing, reading, and engaging in other forms of vocal activity.

“Seasoned classical singers tend to be more aware of their vocal use because they’ve lived and learned,” Brancaccio said. “But some people – especially less trained singers or people like teachers, politicians and sports coaches, who have to talk a lot for their job – often don’t realize how much they push it. We want to give them a more great awareness to help prevent injury.”

Basically, when you abuse your voice, you risk swelling and sometimes even damaging the tissue of your vocal folds or vocal cords. It’s similar to how running for a really long time can make your legs feel like jelly because your muscles get tired.

Run too much and you could injure your quadriceps, scream too much and you could injure your larynx. It’s also why, the team explains, the voice device could one day help patients with voice disorders, such as vocal paresis which causes a weak, breathless voice as a result of nerve damage, cancer, stroke, or viral infection.

“There is evidence that even brief periods of total silence of 15 to 20 minutes interspersed throughout the day can help vocal cord tissue recover and repair itself,” Brancaccio said.

The device is seen up close with the wristwatch attachment.

Northwestern University

The device also uses algorithms to distinguish when a wearer is speaking or singing while measuring the amplitude and frequency of the voice. This could be a game-changer for singers interested in tracking their vocal activity.

“These two parameters are the most important in determining the overall load that occurs on the vocal folds. Being aware of these parameters, both at a given instant and cumulatively over time, is essential for managing vocalization patterns. healthy,” John A. Rogers, a bioelectronics expert who led the development of the device, said in a statement.

People mainly have problems when events pile up, Brancaccio said. “They can have rehearsals, give lessons, talk during class discussions, then go to a loud party, where they have to shout over the background noise. Then throw a cold or illness into the mix. people have no idea how hard they are coughing or clearing their throat.When these events accumulate for days, it can put significant stress on the voice.

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How to Create a New Facebook Account Without a Phone Number
necessary process Create a Facebook account
Not tied to a phone number You have an Android phone and it just needs
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Access the Google Play Store.

Find Facebook Lite Facebook.

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There are many ways To create a Facebook account
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Activating a Facebook account with a fake number has disadvantages and
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If you are new to this social networking platform then… Create a Facebook profile It can be stressful for you. So here are some tips to help you get started with Facebook:

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one thing and managing it is another; Understand your privacy settings
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tip – If you are using a Facebook account on a public network, never
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you signed up for a Facebook account via email, you’ll need to contact
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if you want it now Create a new Facebook account Using your phone number instead of your email address, you need to follow these steps:

Go to and click Create New Account.

Enter your telephone number and other personal information requested in the “Registration” form; Click “Login” when finished.

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Here we will learn how to create a new Facebook gmail account on computer, and here are the necessary steps:

Turn on the computer and launch the browser.

Click Create New Account.

After that, a window will appear where you need to enter:

Your first and middle name.

Your gmail (which we created earlier).

Account password.

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you have to do is go to your email inbox and you will find a message
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When using your phone to create a new Facebook Gmail account, you must first Download the Facebook app from Google Play
If you are using a phone with limited specs, not enough storage space
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Open the Facebook app.

Click Create a new account and grant it to Facebook Permissions to complete account creation.

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