When I was a kid practicing clarinet, I always heard my teacher saying, "if you hear the wobble when you and I are playing the same note, then you'd probably out of tune. " 10 years later I can explain this in acoustic physics. Thank you Khan academy!
@VndNvwYvvSvv
4 жыл бұрын
Yeah, but that also could just be embouchure on a woodwind or fingering pressure on a stringed instrument "bending" the tone too.
@nicholasz2510
3 жыл бұрын
@@VndNvwYvvSvv OP didn't specify that it was specifically the instrument being out of tune, so incorrect embouchure/pressure also counts as "out of tune".
@ElectroRestore
2 жыл бұрын
It could also be the teacher is off and you are correct. Or you both could be off frequency in varying amounts ad divers directions. Tell the teacher, your right and she is wrong and it is a case of observer reality. :)
@namankarn1504
6 жыл бұрын
it's the best explanation i've ever come through..
@kliusd
6 жыл бұрын
woah woah woah woah woah...woah woah...woooooooah thank you for your explanation
@saltypakoda5333
4 жыл бұрын
When he said 'WaouUou', I felt that.
@noxusfumes3628
4 жыл бұрын
Most teachers simply go into the math but your lecture was able to give me a 'feel' of what beats actually is. Thank you! 👍
@cola5323
11 ай бұрын
Exactly, it makes such a big difference to be able to really picture the phenomenon happening rather than just having a bunch of formula to memorize
@noxusfumes3628
11 ай бұрын
@@cola5323 Agreed 💯 ... Btw your comment actually brought me back to this 3 year old comment of mine from the time when I was actually preparing for my medical entrance exams (they also ask physics in it) Feels good to just look back and see how far I've come (cracked the exam, into med school now)
@cola5323
10 ай бұрын
@@noxusfumes3628 happy to hear that you’re doing great! :> keep crushin ‘em!
@ghostnotbedsheet
10 ай бұрын
"feel"? Bro did you study physics from MR sir?
@cola5323
10 ай бұрын
@@ghostnotbedsheet I think they meant like they’re able to understand beats on a more intuitive level after watching the video
@zpawn1
6 жыл бұрын
When i was a kid, i used to get this same effect by screaming at each others face with my cousin. I didn't know the name of this phenomena until now, thanks!
@GIobeCentral
5 жыл бұрын
I appreciate your explanation of the word phenomena. Cheers!
@noxusfumes3628
4 жыл бұрын
@@GIobeCentral everything is a _phenomena_ these days lol 😂😂
@VndNvwYvvSvv
4 жыл бұрын
Aaaand that, folks, is exactly how you tune an instrument, guitar or woodwind. Sal is ok, but this guy is SO MUCH BETTER! Thank you! Please do more of Khan's videos.
@dcqec111
7 жыл бұрын
I love his voice.
@kimsmith6384
3 жыл бұрын
mee too
@monchina5626
5 жыл бұрын
Sir ur voice is wonderful.
@axeledongo7846
7 жыл бұрын
that Dr.Dre joke though
@laze_amvs424
3 жыл бұрын
I just heard it now and I'm dead XD
@johnhebert7445
3 жыл бұрын
I think he needs to edit a section in where he says “now I’m going to play both frequencies at the same time. You will definitely be able to hear the difference.” and play Dr. Dre. 😂
@ryanbortz7694
2 жыл бұрын
Great video. One clarification: when the flute and clarinet are both playing the ‘a’ in tune, they will be playing in unison, not harmony.
@Saharah2050
6 жыл бұрын
This is a really terrific explanation that I have ever heard. Thanks!
@sanar77
4 жыл бұрын
i was really searching for this video
@johnmifsud6814
Жыл бұрын
Fantastic explanation - not just babble from a physics dude. The output of beats is confusing as one is expecting something like a Sine wave compared to an interfence pattern. This makes it more difficult to comprehend the resulting frequency. This video explained it beautifully - very well done...
@sushilskolia
2 жыл бұрын
Challenging the teaching of expensive teachers snd winning by an edge….. super awesome
@rnumashankar2857
4 жыл бұрын
Thanks sir
@NiharikaAChirayil
5 ай бұрын
Thanks for the video! I had doubts on this topic.
@migeto4721
7 ай бұрын
Wooow I still enjoy your lesson ever I watch
@akashhera
Жыл бұрын
This video helped me to get a clear idea on beat frequency other than some set of equations!
@manoharaswamyjm1675
4 жыл бұрын
No words to talk about explanation I'm impressed 👏🏻💯
@sangitapawar6490
3 жыл бұрын
Best explanation ever...
@aryan___2k5
4 жыл бұрын
Wonderously Explained! Thanks!
@dr.nupurbanerjee9547
5 жыл бұрын
Ty
@tamalesux
Жыл бұрын
I’ve taken note of parts in songs that have a ‘beat frequency’ bass note because it sounds sick. I didn’t know the term for it but I had realized what the sound was when I had played around in FL studio and played 2 different frequency 808s at the same time. You learn something new every day. (One example is look at me now by Brennan savage. Will be easier to tell with a system or just a sub in general)
@AnkitaTiwari_no1
9 ай бұрын
Best explanation of beats thank you so much sir
@R.Bharathkumar2003
4 жыл бұрын
Thank you you are considering south people too and said this in English I will be thankful to you for your concern
@musictheorytree
Жыл бұрын
I love how the quality of beats is related to the quality of intervals.
@cola5323
11 ай бұрын
A beautiful demonstration of how music and science are intertwined! I know that music is essentially science but there’s this idea that music is in complete contrast with cold hard science and that’s just not true!
@lakshmishajahan8391
6 жыл бұрын
Now I finally understand it! Thank you!
@SherlockHolmes-lc7jo
5 жыл бұрын
Well explained...
@lambda4931
5 жыл бұрын
Very clear! Thank you
@samstephens891
Жыл бұрын
Very helpful explanation, thank you!
@victorfong8396
2 ай бұрын
clearly explain!
@drshr2009
4 жыл бұрын
If the two waves with the same wavelength are in between constructive and destructive interference, won't it be constructive at some points and destructive at others? Also, I just realized that you can think about beat frequency like two runners around a circular track - the difference in frequencies is how many more cycles the faster person is going to do in a second! If you want to know the first time the runner will lap the second runner or the first time these runners meet again if they start from the same place, you can do f1 (faster frequency) * t = f2 * t + 1 (for one more cycle). This will give you 1/(f1-f2) seconds. If you believe me that this time stays constant, in 1 second, you have 1/(1/(f1-f2)) constructive interferences or a beat frequency of f1-f2!
@orangeinfotainment620
8 ай бұрын
Thank you!
@dnlgrg
6 жыл бұрын
Thank you
@BernardoHenriques4
Жыл бұрын
Can someone clarify me something? I was doing some research on beat and came across a book that stated the frequency you HEAR is actually double the ACTUAL frequency of the beat. ie: if you hear a beat sound of 20 wobbles per second the difference between the two frequencies playing is actually only 10hz - and not 20Hz. The reasoning is that for every wavelength on the new wave formed you'll hear 2 beats. The way David explained made it seem that the frequency you hear is the actual beat frequency. Can someone clarify me on this?
@kayo6955
4 жыл бұрын
thank you so much, that was an amazing explanation. Thank you
@ravikeshkumar4950
5 жыл бұрын
Thank you sir
@Min-sj8xt
6 жыл бұрын
THANK YOU you just saved my physic test score
@dailymech4850
4 жыл бұрын
Simply,great.
@pournimathakare2279
6 жыл бұрын
simply awesome!!
@sharonjuniorchess
6 жыл бұрын
Not only is this used by musicians to tune their instruments but it can be applied to make continuous wave (morse) radiotelegraphy signals audible.
@divyahinduja3424
5 жыл бұрын
thank you so much 🙌🙏🙏
@sunilgoyal2957
6 жыл бұрын
Excellent. Thanks a lot
@point-og3yc
4 жыл бұрын
Nice explanation
@geoffphillips8183
2 жыл бұрын
Excellent explanation! Thanks
@khatonredwood6570
7 жыл бұрын
U explain so well...hats off
@Spear8
2 жыл бұрын
You explained really well man . Thank you everymuch🙂
@GIobeCentral
5 жыл бұрын
I like this video, and your analogy using musical instruments.
@yuktamasta7130
6 жыл бұрын
Nice explaination
@srs.r6354
4 жыл бұрын
Nicer👍👌💐
@NJ-co6qs
6 жыл бұрын
amazing explanation 😊😊😺😺👍👌
@zSatherz
5 жыл бұрын
Such a good video. It is entertaining and extremely informative. AWESOME.
@roseb2105
5 жыл бұрын
by wobolly do you mean that the waves from the 2 different sources are not aligned ( neither constructive nor destructive)
@ClumpypooCP
2 жыл бұрын
Really a great explanation. Awesome stuff. Thanks
@ifesvlog
7 ай бұрын
Thanks
@rogerscottcathey
4 жыл бұрын
what would the harmonic be? 883 bps?
@NToB36
7 жыл бұрын
youre amazing!
@MuhammadRaza-yd6sg
6 жыл бұрын
Keep up the good work guys 💙💙💙
@SangitaKumari-og9gy
6 жыл бұрын
Thank you
@syedashabanazaidi6262
6 жыл бұрын
Sir keep up the good work god bless u😇
@faithralane214
7 жыл бұрын
Thanks very helpful .
@sibgha9966
6 жыл бұрын
Thank you so much
@coloradowilderness3139
4 жыл бұрын
Wrong at 4:17, It will be constructive in the opposite direction .
@candypaii
7 жыл бұрын
Thanks!
@GauravRaghav
6 жыл бұрын
awesome video
@av_yukt
6 жыл бұрын
u r too good sir....
@praiseekakitie1056
7 жыл бұрын
Thanks!
@johndoe-bq1xt
3 жыл бұрын
Sir, I have a question. If i have f1 and f2 and I get fb1=abs(f1-f2). If I added f3. Would I get fb2=abs(fb1-f3)? And could I do this for more frequencies?
@aadarshsbhat7148
7 жыл бұрын
thanks
@maxxxlearner7066
6 жыл бұрын
best explanation of beats
@gabor6259
3 жыл бұрын
This video made me go wowowow.
@MinuteMayne
7 жыл бұрын
dre jokes hell yeah
@gregorykarimian3813
10 ай бұрын
Beats By David
@sampadaghalsasi1565
7 жыл бұрын
thanks!
@magnuswootton7368
6 жыл бұрын
do the lesson in wave length.
@linatewala9471
7 жыл бұрын
thanks!
@hritikgogoi3577
6 жыл бұрын
🤗 soooo nice..
@spectrum792
5 жыл бұрын
You just played 440 Hz & then you're saying the frequency is 20Hz. How come?
@daraquesca1886
3 жыл бұрын
4:55
@Mohamed-jv6nv
6 жыл бұрын
Thanks. Amazing videos. it'd be more than perfect if the visuals were better IUKWIM ;)
@abhishekpandey-hf7on
5 жыл бұрын
If beat frequency be in decimal, suppose 8.13 then we will hear 8 wobbles per second, ??
@daraquesca1886
3 жыл бұрын
2:30
@cliveaw1206
4 жыл бұрын
I don't why but this guy reminds me of the little bits guy from rick and morty
@daraquesca1886
3 жыл бұрын
9:00
@forgamerz1
7 жыл бұрын
awsome
@tanjimirtiza2366
5 жыл бұрын
xDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD I LAUGHED SO HARD HEARING THAT JOKE
@Garmashua
5 жыл бұрын
Who knows any app/program that let me see graphs and play with sound? Thanks
@chelss743
Ай бұрын
I do not understand the last part...
@daraquesca1886
3 жыл бұрын
230
@daraquesca1886
3 жыл бұрын
hello
@russelbymahlawule496
5 жыл бұрын
Those people who hit the dislike button are probably going to dropout
@akshaykarthick7822
4 жыл бұрын
thank goodness ! I thought dr.dre's rival would come out of this ! ( anyway, good joke)
@aabidsofi19
3 жыл бұрын
I wan Dr.dre to do this woo woble
@tharindunawoda
Жыл бұрын
❤❤❤❤
@XWRL00
4 жыл бұрын
5:24 and I stared freestyling
@amannautiyal9992
6 жыл бұрын
Dr. Dre!!! 😂
@mdbarjahan6695
7 жыл бұрын
It's look like modulated wave.....Isn't i???
@pawanramnani8300
3 жыл бұрын
School teacher send this btw school is full waste for jee prep
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