Quick physics: Fundamental vs. Harmonics
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- čas přidán 5. 08. 2024
- A short primer on what it means to say a sound has a "fundamental frequency" and "harmonics". It's just a simple physical concept to keep in mind when doing sound design, and all you need is a spectrum analyser to understand it!
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Contents:
0:00 Intro
0:50 Sine wave (pure fundamental)
3:08 Saw wave (fundamental + harmonics)
6:45 Bass sounds and filters
7:59 Piano and voice example
9:29 Outro
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Excellent content...consider me subscribed!
Here's a fun fact: the brain is awesome and can actually fill in the blanks even if the fundamental is completely missing...it can generally perceive the fundamental just from listening to the harmonics alone.
Some plugins use this phenomenon of psychoacoustics to help create the impression of bass (even when the speakers are physically unable to reproduce the low frequency of the fundamental itself) by creating the harmonics instead, which are generally multiples of the fundamental frequency. The only problem with this is that the bass then becomes "bass you can hear" rather than "bass you can feel".
I love the brain. It's so frickin' awesome!
Man, I am so appreciated for what you are doing. I currently am just a bedroom a DJ, but learning about all these sound designs and fundementals got me much better at what I am doing since i have much more control over what is going to happen, plus i am so sure i will knock your door soon to get into one of your programs to learn to be able to produce myself. I really really like your scientific approach rather than just tweaking some knobs! Stay as you are big man!
I am currently doing my masters in Aerospace and have been producing music for around 5 years.. This video just helped me better understand Fourier Series and understand audio production better!!!
Thanks a lot!
Thanks man ! clean job ; learned a lot was really cool to watch
Nice use of the Awesome 3 piano riff there. 😎 Awesome explanation too. 👍
Wow! concepts that we are struggling with, you demonstrate them with such comfort? Thank you.
Excellent ..Thanks for posting!!✌
Great video - simple and straightforward! BTW double-click on Spectrum or EQ8 to make the spectogram much bigger and easier to present :)
friend you explain everything well, thank you, today I found your channel is super cool!
Thanks Maria 😁✌
Thank you very much!
Very interesting video! 👍
Which program do you use for screen recording please? I need one 😁
Hey Dori! I'm currently using OBS: obsproject.com/
It's pretty intuitive so far!
thanks oscar!!!
Great video.
Great video, straight to the point no bs ! subscribe👍🏾
Yeah baby! That's how we like it 😊
❤ merci !
Wonderful, thank you.
Thanks Chris :) let me know if there's any other topic you'd like to see covered - I'm just getting this channel warmed up!
@@OscarUnderdog Certainly more of this technical stuff!
@@chrisdugger9527 Will do 👌
im confused on the piano example. is it the most left frequency even if it has hte lowest amplitude?
Wonder if you could clear something up for me?
Often when analysing sounds (e.g within a drum kit) the reading is quite ambiguous and there isnt a clear fundamental, so is the key of a sound ALWAYS the first peak, or is it sometimes the highest peak? What is the 'rule'?
I often get a reading on the spectrum analyser where the first 'leftmost' peak, lets say at 100hz, is several Db lower than another peak at a higher frequency, lets say 1khz. In this scenario which of the two peaks do you use to determine the key? Is it the very first peak (the lower Db of the two, the fundamental), or is sometimes the peak with the highest Db and higher freq?
I'd like to know Oscar's answer to this, as well. In the meantime, I would suggest running it through a tuner.
Hello im.trying to have an oscilator in any synth (wavetable, serum, whichever vst) to be able to play the same note that i can choose regadles of the key i press on the keyboard, does anybody know how can i do that?
You could try using the scale midi-effect called "In C" and set the base to the note that you want. But if I remember correctly it still moves up and down octaves.
5:24 Thanks (was listening on my headphones 😅)
Edit: you got my at 6:14 though :P
But how harmonics are produced by the vocal folds at the same time
Still better singer than most of the famous singers :P
A bit of autotune and I'll be good to go 😁👌
Harmonics and overtones are different