The Mechanism Behind Your Voice / Mr. Denjiro’s Happy Energy! скачать в хорошем качестве

The Mechanism Behind Your Voice / Mr. Denjiro’s Happy Energy!

DENJIRO: Today, I'll show you an experiment about voice. I have a big bag filled with helium gas. Of course, there's oxygen in it too. Watch what happens when I go inside and talk. Hello everyone, this is Denjiro! My voice has changed! Do you know why breathing in helium changes your voice? The secret lies in the mechanism behind your voice. I have a handmade model that reproduces the way you speak. Think of this film as your vocal cords. I'm going to attach this tube to it, which represents your vocal tract. Humans speak by amplifying the vibrations of the vocal cords using the vocal tract. Let's see how things change between air and helium. ON-SCREEN TEXT: Air ON-SCREEN TEXT: Helium The sound was higher with helium gas. Let's analyze the sound. With the helium, which is on top, there are more higher pitches. When the air in the vocal tract is replaced with helium, which is lighter and less dense than regular air, it becomes easier for the voice to resonate at higher frequencies. Hello everyone, this is Denjiro! My voice has changed! Now, let's experiment with krypton gas, which is heavier and has more density than air. I'm going to suck the gas out of this balloon and speak. This is Denjiro. My voice is lower. Since krypton gas is heavier and has more density than air, your voice resonates at lower frequencies more. I hope energy will bring you all happiness. Our magic word is "Happy Energy!"