4. Frequency, Wave Shape and Pitch
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- เผยแพร่เมื่อ 5 ก.ย. 2024
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Sound waves generally have four main qualities:
Frequency - determines Pitch
Wave shape - determines Timbre
Amplitude - determines Volume
Phase - determines how sound wave interact
If a string vibrates back and forth 200 times a second, it is causing or emitting 200 sound waves per second. And the number of sound waves that pass a fixed point per second (or the number of times a string vibrates per second) is called the ‘frequency’ and is measured in Hertz. So our string is vibrating at 200 Hz. Frequency and Wavelength determines the pitch of the sound.
Some of the animations in this video were sourced from the below websites. A big thank you to them.
Title: Dopplereffectstationary.gif
Author: Lookang
Link: commons.wikime...
License: Creative Commons Attribution-Share Alike 3.0 Unported
Title: Dopplereffectsourcemovingrightatmach0.7.gif
Author: Lookang
Link: commons.wikime...
License: Creative Commons Attribution-Share Alike 3.0 Unported
Title: File:Dopplereffectsourcemovingrightatmach1.4.gif
Author: Lookang
Link: commons.wikime...
License: Creative Commons Attribution-Share Alike 3.0 Unported
I think a lot of people are sensitive to a lot of these patterns but have a hard time making concrete sense of them. These concepts impact the world and life around us profoundly.
This is really a fantastic video, thank you.
It's crazy how each wave shape kinda looks like it sounds. Sawtooth has got some real jagged edge to it.
Nice explanation actually
wavelengths and frequencies explain why you can hear lower frequencies like bass for example further away as opposed to a higher frequencies
In the minute 3:09 , the explanation of the speed of sound is very vague, could someone rephrase that to me? Thanks
brilliant explanations thank you, could you try to make a breakdown video of the typical waveshapes that'd make up one piano key for example, because I notice when I use a synth, I notice I need to use multiple waveshapes and some distortion to make the sound sound more dynamic/natural, usually one waveshape isn't enough and comes across as being flat, or boring.
if you relate that back to a piano, piano's have inefficiencies, extra vibrations etc, that in itself would create more waveshapes, plus there's dust etc in the air, that would relate back to distortion in the synthesizer.
Thanks so much! These videos are fantastic!
No worries. Glad you think so :)
Thanks for the lessons. This is very helpful to me since I have my finals coming up. Thank you so much for the lessons😂🎉
So, is the reason that the lowest and highest key on a piano both don't seem to resonate as much simply because our ears aren't as capable of hearing those notes compared to the others in between?
great, hopefully you can have a mini series with crash course and up the production value
but, when we hear a A note in air, then we move into water, will we still hear the note A?
Yes, the frequency stays the same. It´s just that the sound travels faster. The timber may change, because different media reacts differently to different frequencies. Timber is still not explained in this video, but if you explore about timber, it becomes clearer.
Well explained. Discover your inner self through vibrations and frequencies.
Love this video
Better than my teacher teaching me
Ver packed with useful info 🤯🤯👍👍👍
Great job on this.
great! please keep up your amazing work
Thanks, will do :)
so you when i make middle c sound with my mouth, my troath makes 262 vibrations a second?
vocal cord, not troath
So far a very good series. The only part I don't get is the wavelength . I always thought that wavelength was 1 sec divide by frequency. (unit of time(s) not distance) Not sure how the speed of sound is relevant here.?
This series of videos is amazing, thank you very much, great work!
Thanks, mate :)
Very very interesting
Is it just me or couldn't everyone hear the high c?
great vid!
but is it just me or did the police car go left to right and the siren sound right to left?
I heard it this way too!
Bugger. Missed that one. Apologies.
Your earphones might be right in left and left in right
😎
I Love Bass!
Just Wow.. Thanks a lot
so technically when you are up in the mountains, you will have to re-tune your instruments ,to match the AIR - PRESSURE match correct tune tune again .
my science teacher made me watch this video
i learned more from this video than from him
Ow
Might as well learn how to play the fucking piano. Thank you you helped a lot.😊😁😄
4:04 the weirdest triangle sound Ive ever heard :)
Nice \
Your c and a are flat and sharp respectively
dang it. second comment. Great vid!
Very tardy. Still, better late than never!
Right.......
At
came here from music appreciation, anyone else?
I guess you can help me somehow. Let me explain you my problem. How can i visualy change the wave shape of an audio sample? All i want it's just to change the visual look of the wave shape of a song but not change the original sound. How can i do it? i want to change the visual look of the wave shape that's all
I think u cannot, it's been 5 years, could u?