Every sound is SINE

Every sound is made from an infinite number of sine waves. You could say that we all speak sine language.

5:42 the 3 sine waves talking hit me like a semitruck

6:47 the way the bells could be rounded off into individual bell strikes literally sounded like magic

2:44 as soon as it said "Square Wave" I almost had a heart attack, lol. I feel like my entire knowledge of music production has been unlocked from trial mode.

I always knew as a fact that sound is made up of waves and vibrations, that's what we're taught... but this has given me the understanding like absolutely nothing else, easily becomes one of my favorite videos of all time, Mind blown.

6:37 this part is actually banging like holy shit

5:13 i want a full version of this! it sounds like a SpeedCore/EDM song! i love it!

New fear unlocked: vocals with 3 sinewaves

The car alarm at the end is hilarious.

At 7:12 you say that what ultimately hits our eardrums is a single sound wave. This is true, but the next step, which I think is fascinating, is that your inner ear splits the sound wave back into its component frequencies, and the amount of each frequency is what gets sent to the brain.

As someone who spent years suffering through wave theory, Laplace transforms, and Fourier series I greatly appreciate this video

this is one of the best videos on audio i've ever watched. it's the first one that actually follows the golden rule of "show, don't tell", and that makes all the difference. damn your channel is a gold mine.

I put my day on hold when a new video comes out. Also, I was writing software one time for a machine which needed a buzzer sound. Customer supplied a buzzer noise which even at the smallest file size was too big for the chip to store. Instead, I did an FFT to find the harmonics and amplitudes of the sound, then wrote a few lines in the software to play corresponding some waves back. Saved a ton of space. Then realized I had to explain to the customer why it's not just a drag and drop to try new buzzer sounds.

I'm kind of impressed that you can approach topics like FFTs without even mentioning FFTs!

This is so good, Posy. Excellent visualization!

This is the perfect kind of video introduction to physics/sound, it should be played at schools. It gets you interested in the subject, giving motivation to research further and learn more on the topic.

6:34 the start of a banger

4:17 lmao, this is how educational videos are supposed to be. Funny, informative, short.

Your videos are a real treat. Thank you.

Wow! My not only was my mind blown in this video, but also my eardrums! Outstanding works there Posy!