Helium is much lighter than air, so sound waves move much faster through the gas. This amplifies the higher frequencies in your voice. The gas sulfur hexafluoride works in the opposite way.

YouTube is rolling out a new feature to select creators which lets them reply to comments on their videos with their voice.

How that sound is perceived then splits into two categories: air conduction and bone conduction. Air conduction is the way we hear most sounds, including recordings of our voice. The waves travel ...

trumpet the sound from the trumpet comes from a vibrating column of air created by buzzing lips of the trumpeter A sound wave is a longitudinal wave. When an object vibrates it produces a ...

1. Grab your phone and find the voice memos app. It should look like this: 2. Open the app. It should look like this: 3. Press the red record button. Make sure you see sound waves when you start ...

Speaker The audio signal causes the radio speaker's diaphragm to vibrate, which creates sound waves. A sound wave equivalent to the singer's voice radiates from the speaker.

Google’s YouTube is testing a voice reply feature …The company said earlier in a blog post: “Testing voice replies to comments: We’re ...