The Math Behind Music and Sound Synthesis

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  • Опубликовано: 20 ноя 2024

Комментарии • 800

  • @turpialito
    @turpialito 3 года назад +1053

    Mad skillset. Maths, music, coding, video editing, and a factual, no BS approach to the gist of the matter. Looking forward to your upcoming stuff. Cheers, mate.

    • @pharezdamena8435
      @pharezdamena8435 2 года назад +3

      Hey, maybe its a stupid question, but what is the coding part? Because I find coding interesting but didn't know it was in this video.

    • @aschelocke5287
      @aschelocke5287 2 года назад +2

      @@pharezdamena8435 it is not in this Video

    • @danieldale1488
      @danieldale1488 2 года назад +10

      @@aschelocke5287 Unless he drew all those sine waves by hand, yes it is; it's just not very complex.

    • @jasonzacharias2150
      @jasonzacharias2150 Год назад

      He's here fouier information!!!! !!!! !!!! !!! !!! !!! !! !! ! //*Syntax error, time deaf 🥂*//

    • @cadenbicsak1703
      @cadenbicsak1703 Год назад +3

      I guess I've been accidentally striving to be this dude since I'm a math major with minors in music and comp sci

  • @quantumgaming9180
    @quantumgaming9180 3 года назад +896

    The way you animate and explain is incredible

    • @Gonkee
      @Gonkee  3 года назад +64

      Thank you :)

    • @krowus3833
      @krowus3833 3 года назад +8

      Epic pfp my guy

    • @rangutanz
      @rangutanz 3 года назад +5

      Cool pfp

    • @quantumgaming9180
      @quantumgaming9180 3 года назад +4

      @@rangutanz you too, handsome

    • @mq-r3apz291
      @mq-r3apz291 Год назад +1

      I couldnt tell weather this is a math or music channel. It's an enginneering channel. Impressive that I couln't tell

  • @David-zy1lr
    @David-zy1lr 3 года назад +1290

    Was this just an elaborate scheme to show us that sick beat?
    (I absolutely loved the video btw)

    • @Gonkee
      @Gonkee  3 года назад +344

      That's exactly what it is haha

    • @UncoveredTruths
      @UncoveredTruths 3 года назад +27

      @@Gonkee my man's in live cooking it fresh

    • @JohnPaulBuce
      @JohnPaulBuce 3 года назад +19

      tutorial just to flex lol

    • @alexandrosweeb8059
      @alexandrosweeb8059 3 года назад +8

      I want that song! It sounded soooo sick ^^

    • @dominicellis1867
      @dominicellis1867 3 года назад +6

      @@Gonkee I love that triangle wave line but you changed the melody on the 2nd repeat and that didn't show in your shown wave pattern. Also what software did you use to make the beat?

  • @thefranciscoflores
    @thefranciscoflores Год назад +11

    when he started building the song as he was explaining the waveform sounds i wanted to cry. that was so beautiful

  • @jimmy21584
    @jimmy21584 3 года назад +198

    This covers so much ground in such a small amount of time, really helped by such intuitive animations. I’m going to share this with all my musician mates.

  • @ShaunakDe
    @ShaunakDe 3 года назад +57

    Your channel reminds me of the best parts of college. Learning different concepts in a relatively short span, and being endlessly fascinated with the core concepts. Thanks for taking the time to make these.

  • @joaovictorsilva3092
    @joaovictorsilva3092 3 года назад +156

    This channel have so much potential

  • @XanderGouws
    @XanderGouws 3 года назад +446

    You really thought you could sneak *the lick* past us at 7:27, huh ;)

  • @samevans4834
    @samevans4834 3 года назад +1808

    The Algorithm has found you, friend.

  • @antipainK
    @antipainK 3 года назад +43

    Wow, you explained it far better than anyone else!
    I needed this kind of scientific explanation of music, all other people talk about "rules" and that "you have to feel it, just redo it over and over and you'll get it".
    This filled the empty space in my soul 😍

    • @azraf_youtube
      @azraf_youtube 3 года назад +3

      Why do you have a profile picture of kermit committing suicide?

    • @melihbostan9159
      @melihbostan9159 Год назад

      I also needed this explanation and I feel smarter for understanding this. I guess we are all geniuses with a right teacher :)

  • @yuvrajcharan5387
    @yuvrajcharan5387 16 дней назад +1

    Finally RUclips has something meaningful to recommend

  • @Testgeraeusch
    @Testgeraeusch 3 года назад +120

    I started making electronic music around 2011 when my friend showed me a java programm that would make the speaker play a series or beeps. I started off writing music exclusively as rows and rows of ascii code that would then be read by some newer version of the software provided by that friend and generate a .wav file from that. The catch was: every instrument had to be defined as a math function of time. Coming from that perspective, i can tell you: Sound design is a lot harder than just adding some waves. I tried, and i failed a lot. I was so happy the first time i managed to make a decent FM bass that the sound cougth me completely off guard. XD Even worse, i was never really into games or chiptune stuff; i was just to lazy to install FL studio or something similar that would make me some "professional" tunes. I eventually switched to linux multi media studio around 2015, but came back to that raw saw&square sound last year. Now i'm trying to make the most out of it and see if this weird software where every sound is pure math-hell could be used for educational purposes. The new version featues a simple syntax for microtones and even has some basic filters. And we simplified the syntax a lot.
    I'm currently preparing a bunch of slides for a small presentation or vid about the math of the so called microtonal intervals and natural/non-12TET tuning systems. But my channel isn't exactly an educational channel, so it may as well be a waste of time or just something for myself to spend the time in lockdown. But if you are curious/interested in this stuff i could send you a .zip with the software and some demo files for easier demo sounds than the ones you used for this vid (like playing actuall 400Hz tones or really perfect fifths ;) ).
    Have a nice day and stay save :)

    • @chiaramartin8426
      @chiaramartin8426 2 года назад

      Sounds interesting!! Could u send the .zip to me?

    • @VRchitecture
      @VRchitecture 2 года назад +1

      Did you try live coding with SoundPi, SuperCollider or sth like that? I guess with such background you should do really well in tweaking stuff in realtime )

    • @Testgeraeusch
      @Testgeraeusch 2 года назад +1

      @@VRchitecture I'm seriously considering just abusing a pico for that; didn't find the time though. But i borrowed a friends touchscreen once for a live performance on an t+-integrated virtual microkeyboard where i could only press one key at a time, so it's getting there XD still no real time manipulation, but one could type in the instrument definitions as you play and the new notes use the new parameters. It was just inteded as a quick testing feature, but it is possible to perform with that... ^^

    • @tobitdesmet
      @tobitdesmet 2 года назад +1

      Lol I would love to have that software! I'm really into microtonal stuff (due to Jacob Collier 😏) but all regular programs are too grid-based for that. I would love to be able to use something like this!

    • @jwgmail
      @jwgmail Год назад

      what is the name of the java program?

  • @donbonesmith9628
    @donbonesmith9628 3 года назад +18

    that little beat at the end was a banger

  • @neetishdhavgaye
    @neetishdhavgaye 3 года назад +6

    I am just a kid... learning math, science
    Now I can see how to corelate them easily.
    Glad you made this video !!!

  • @BlessedCobra
    @BlessedCobra Год назад +7

    This is beautiful. I’ve always wondered how music is mathematically structured-especially electronic music-and this video offers a brief yet clear introduction of the core concepts. And the culmination of everything we learned at the end with all the waves coming together genuinely brought tears to my eyes. Thank you.

  • @shotgun3628
    @shotgun3628 3 года назад +37

    Ive noticed many smaller channels popping up recently with massive potential. This has got to be the best, i love how chill the whole video is

  • @kitwhale9067
    @kitwhale9067 11 месяцев назад +2

    There are 12 tones/notes over 14 steps on the piano if you look at it from a mathematical stand point, the pattern repeats every 12 keys and from A to A key is a whole octave and every 13th key is A key and first key at the same time, what I am saying is it is exactly 1 octave from A key to next A key, the frequency number doubles, it doubles in frequency, now I'm glad we had this talk, I feel much closer to you...
    Consider this: A key frequency is any whole number because it's just logical for it to be a whole number if you could guess it to be any number, it would probably be a whole number so now we have one octave from A to A,
    step number 1 is A#,
    step number 2 is B,
    step number 3 would be B#, (it's the key that is missing, the step exists)
    step number 4 is C,
    step number 5 is C#,
    step number 6 is D,
    step number 7 is D#,
    step number 8 E,
    step number 9 would be E# but the key is missing, the step is still there
    step number 10 is F,
    step number 11 is F#,
    step number 12 is G,
    step number 13 is G#,
    step number 14 is next A
    so there are 12 keys over 14 steps in every octave, it's 14 because FREQUENCY is a LiNEAR VALUE, it's a curved line, a sine wave, a wave so if 7 whole notes exist there also 7 half steps and total number of half steps is in fact 14 not 12, exactly 14...
    B# and E# do exist in nature, in physical space B# and E# without a doubt exist and this makes music theory fundamentally flawed whether on purpose or not is another question, however one thing is clear, as day, musical western theory is a falsified way to TUNE THE PiANO, well simply because all the ratios to every key except to the same key in a different octave are all wrong...
    A Frequency + (A Frequency ÷ 14) × step number
    A0+(A0÷14)×14=A1
    A1 will double the frequency is how you know it's proper
    Also the key between two A keys is D# it's the 7th key out of 13 keys so it's exactly the frequency in the middle of the given octave so you can figure it out in your mind and check it with the formula considering you know what the step number is(#7)
    This is the proper formula for every key, not divided by 12, only by 14
    Also piano should logically start with A key on the most left because it's the reference key and the first audible frequency and it would make A key also the most right key, making it absurd to start and end the piano keyboard with anything, a A keys
    First audible frequency is an A key, or should be A key and it's probably 28-37Herts....well somewhere in this range because it's the first audible and musical, so to speak sound and it's basically the lowest Key on the keyboard!

  • @KlaudiusL
    @KlaudiusL 3 года назад +12

    @11:30 I want a 1 hour version of this
    Nice vid, new sub here 👏👏

  • @linusemmerich3424
    @linusemmerich3424 11 месяцев назад +1

    Bro I did not expect you to be that deep in the musical rabbit hole. You even used memes like da lick (7:26)

  • @holdonasec6196
    @holdonasec6196 6 месяцев назад +5

    This is wild because this mean that irrational numbers sound better and any irrational number multiplied will make a irrational number so frusciante was right by detuning to get a better harmonic.

  • @KazeReload
    @KazeReload Год назад +1

    I think it was the clearest explanation of the fourier series and sound design that I've ever seen. Amazing job.

  • @ollimacp
    @ollimacp 3 года назад +1

    Excellent description and presentation, that kind of teaching should be standard in schools & universities.

  • @prod.filipzz
    @prod.filipzz 5 месяцев назад +2

    Sup, i know you probably wont see this comment, but I just want to say that this video is amazing. I was doing presentation for my math class about math in music and this video gave me enough knowledge. It is also made a way that I can understand it even tho I'm not a native speaker. Thank you very much for your work.

  • @ethanluvisia8678
    @ethanluvisia8678 4 месяца назад +1

    This has to be one of the best videos on the platform, incredible work

  • @gian-227
    @gian-227 Год назад

    Learning with this kind of videos is x1000 easier. Thank you so much!

  • @aakashprasad114
    @aakashprasad114 Год назад +1

    you are a freakin genius homie! keep up the good work! the beat at the end was amazing!

  • @hvandermillen3237
    @hvandermillen3237 3 года назад +1

    Man, I have seen so many people try to explain this, but you did it the best by far. Specifically I was always confused about how the square, triangle, etc. waves could be the "sum" of a bunch of sinusoids, it didn't really make sense looking at the shape. But this video paired with the calculus class I am taking really helped me understand where that comes from. Thank you so much!

  • @raoyin1851
    @raoyin1851 3 года назад +1

    That’s fun. It gives me a new perspective to understand music better which I wouldn’t have known if I wasn’t a professional musician.

  • @bobbyundercover4905
    @bobbyundercover4905 2 года назад +1

    To be honest, I've never seen a video as good as this in 2022

  • @bumbledoge
    @bumbledoge 3 года назад +2

    i hated everything about math in school, but your videos man, made me change my mind (not gonna start learning it tho). waiting for more !!

  • @thebaconbreadful
    @thebaconbreadful 3 года назад +5

    This gave me such better understanding of music it is crazy! It just immediately clicked with me thinking about how our brains superpower is abstraction. It also finally made a lot of sense that culture impacts our musical understanding and preference. Especially why the rough integer approximation in a triard is working if you consider western music theroy. I would love a follow up video talking about a few of those things. Awesome work! It really inspired me and probably will help me understand many more things in the future.

  • @arvinprativadi3051
    @arvinprativadi3051 2 года назад +1

    Absolutely excellent video. I am writing a paper on additive synthesis and its relation to mathematics and this was excellent help. Thank you so much!

  • @SilentShiba
    @SilentShiba 3 года назад +1

    Dude you crushed it. The visuals really made it easy to learn, and I liked listening to the song you made at the end.

  • @wooandrewft
    @wooandrewft Год назад

    Before seeing this video, i suspected that there was probably some maths behind sounds. This video confirms it and is exremely clear and helpful. Thank you.

  • @anilbahsi
    @anilbahsi 3 года назад

    This video is helpful for everyone who interested in music and sound. Algorithm blessed me.

  • @ТищенкоДанило-ь1у

    I'm no expert in electroinc music but this video has shed so much light on the topic. Thank you kindly!

  • @kubita-thecall8795
    @kubita-thecall8795 Год назад

    Watching from Swaziland 🇸🇿❤️🙏💕 thanks for the "golden" knowledge you just shared here.
    I wouldn't have known such in my 42yrs. This is tops and nowhere could I hear such deep rare knowledge. I love you bro 🇸🇿😎

  • @sygma_mdn_zdd
    @sygma_mdn_zdd 3 года назад

    This is an incredible video. Even as an electronic music producer and someone who loves math, physics, and sound design, I still never fully understood how these sound waves worked. You explain everything so clearly and make it enjoyable to watch. Thank you.

  • @diogosilva5972
    @diogosilva5972 Год назад

    The way you summed up and delivered these topics was brilliant!

  • @seekerofmeaning
    @seekerofmeaning 3 года назад +1

    The way you explain that is clean like a professional mix ;)
    Thank You!

  • @akelych
    @akelych 11 месяцев назад +1

    I am speechless, this is just awesome. The most helpful vid on the topic I've ever watched

  • @channelsixtysix066
    @channelsixtysix066 3 года назад +1

    I stumbled upon your channel today. What a revelation, I subscribed straight away and love the maths. Your channel never showed up in a search of RUclips channels on maths, so today was pure luck. I'm skimming through the videos, but at some stage, I will be binge-watching them. The content and the beautiful graphics are treat. Cheers. 👍

  • @-N0PE-
    @-N0PE- 3 года назад +24

    I've been watching your videos the whole evening. You made my day.

  • @davidvallejo9184
    @davidvallejo9184 Год назад

    No one else could explain it better than you, you are the best!

  • @ryanmcdonald2027
    @ryanmcdonald2027 2 месяца назад

    Thank you so much for the cool education on synthesis ! Thanks to you now I am now a sound designer and a midi musical piano instrument sound creator for a hobby at home in my recording studio ! :)

  • @prithvidhyani2002
    @prithvidhyani2002 Год назад

    Probably one of my favorite videos on the internet right now..

  • @teakmakai5921
    @teakmakai5921 3 года назад

    This is the best sound design tutorial you’ll watch

  • @MariosBeL
    @MariosBeL 3 года назад +1

    What I just learned?
    Thank you for making this 🔥

  • @charpnatl
    @charpnatl Год назад

    I made an immediate connection with this information to the analog organ I acquired from a church several years ago. This was SO COOL!

  • @Brotyx
    @Brotyx 3 года назад +4

    wow, I love the fact that this video is so detailed and explains everything so well! I normally don't leave comments on videos, but I really feel like I should do it here for the algorithm! :)

  • @ustino85
    @ustino85 3 года назад +3

    Great vizual effects!! this is simple and clear.
    I want more series.
    nice job!

  • @crawlinbacktoyou8282
    @crawlinbacktoyou8282 Год назад

    You made me download Matlab again. I am an electronics & telecommunication engineer. I was always feeling that i can connect math. with music. However, i could never find a clear video which explains basics that good. Very good job...

  • @fireemblem2770
    @fireemblem2770 3 года назад +3

    Glad this stumbled upon me, I have always wanted to learn about the mathematics of music, not just the addition needed in notes but stuff like this. Thank you!!

  • @prodlowkeen
    @prodlowkeen 3 года назад +2

    this video is so incredibly underrated and interesting, love the way you explained and animated everything

  • @jdreiki
    @jdreiki 3 года назад +1

    Oh man, just found my new favorite Chanel, thanks dude, I was really needing this knowledge, and it up with the sick beats to

  • @Testgeraeusch
    @Testgeraeusch 3 года назад +2

    Great animations :D
    Sidenote on Fourier's Theorem: It's not like writing some sound as a sum or integral of sinusoidal waves "may work", it even works for non-periodic discontinous signals like a kickdrum or a sudden blast, or various noise, although that is not as obvious as the regular version of "instruments have more than just one frequency".
    The only limitation to it's applicability is the range in time you want to cover. The larger, the better your results in terms of precision, but the less information you have on individual elements within that time frame. That's the famous uncertainty principle, which for some reason people only think of as "something with qunatum, right?". But in general, every function whose integral over the square is defined (in other words: it does not blow up to infinity) can be built up from complex waves. That even holds for something like a parapola or an exponential function if you limit the the range of the integration to some finite limits.

  • @hexagon5610
    @hexagon5610 3 года назад +1

    This got recommended to me. I thought I would knew all of this already, but still learned some new things. Keep it up!

  • @namangupta6283
    @namangupta6283 Месяц назад

    This video is very very good
    Sometimes i appreciate that there are creator like you 🙏🏻❤️❤️

  • @EnderMega
    @EnderMega 3 года назад +2

    This is incredible, the "editing" since you made the graphics library, the story telling, the content in it, everything was awesome.

  • @mayankchoudhary9784
    @mayankchoudhary9784 3 года назад +1

    Finally a quality channel,thanks RUclips algorithm

  • @ericornelasmath
    @ericornelasmath 3 года назад

    This is incredible. I'm speechless. I am without speech.

  • @taylorroddin
    @taylorroddin 3 года назад +6

    you gotta make some more videos on this style, introducing math to the mix was the only way i could finally understand music theory

  • @s.vidhyardhsingh3881
    @s.vidhyardhsingh3881 Год назад

    I needed something so badly and i didn't know what it was.......
    It was this video!!!! Thank you very much!!!

  • @rodbrittner6524
    @rodbrittner6524 3 года назад

    Really enjoyed that. Flyover which quickly touches the math of music and spans to synthesized sound design. No wonder you get 10% like rate. This video should receive an award. Cheers.

  • @wisemonkey6716
    @wisemonkey6716 3 года назад +2

    this is cool, i've been thinking about this as im learning about periodic functions rn

  • @christianjavier1648
    @christianjavier1648 Год назад

    This is such a good video in so many levels. Thanks RUclips for recommending this. 🎉

  • @brookeelizabeth1270
    @brookeelizabeth1270 3 года назад +1

    Such a beautiful description, and such a sick beat it had me dancing instantly!

  • @kensstudios
    @kensstudios Год назад +1

    That's amazing making some calculation on music tone frequencies and all make sense because it showing what makes music sounds good or bad. Actually, I'm not doing math during composing piece because it useless to me. I only use my hearing to identify those dissonant notes that I should avoid in composing some piece.

  • @PoipleBabby
    @PoipleBabby 3 года назад

    The way you were able to highlight what portion of which formula contributed to the dynamics of the wave shape were really insightful and it helped somethink 'click' in my understanding of synthesis

    • @biskynisky303
      @biskynisky303 6 месяцев назад

      @PoipleBabby what 'somethink' in your speech means?

  • @dranipani
    @dranipani Год назад

    Thanks for this video.
    By the way, who narrated this video has the perfect voice for this type of content...

  • @Jralm
    @Jralm 3 года назад +3

    wow i didn't expected a video of this quality! so underrated

  • @Clickle
    @Clickle 3 года назад +5

    This video is amazingly put together, thank you for making this

  • @neonblack211
    @neonblack211 Год назад

    that's really cool seeing the square wave and the formula for odd numbers in it

  • @IncoBandito
    @IncoBandito Год назад

    ALE TO BYŁO DOBRE. czuję się prawidłowo. dziękuję

  • @henningriez7655
    @henningriez7655 3 года назад

    This content in this video is spot on. Somewhere between what a Dan Worall or Steve Mould might do and a visual Presentation like in the Vox Earworm Series you seem to have found your place. Everybody here seems to agree: we love it and cant wait to see more of that

  • @okwhynot.
    @okwhynot. 6 месяцев назад

    Dude this would have to be the best video ever made, ever. Ever ever. Thanks

  • @OrchardHymns
    @OrchardHymns 2 года назад

    An informative crash course into specifics of synthesi...

  • @wotomy
    @wotomy 3 года назад +1

    This tutorial is awesome! I'm so sad that I can't understand all the english but the animations are amazing. I really love it.

  • @iamnickycchen
    @iamnickycchen 3 года назад

    Thank you man, so helpful. Please do more video talk about the math behind music. Producer needs a ton of these knowledge.

  • @gapguy9564
    @gapguy9564 Год назад

    Awesome, as a musician/ electronics engg i listen music and try to identify notes.. but from now on i need to check shapes too! Very interesting video . Thnks for the effort

  • @oldrockhopper3652
    @oldrockhopper3652 Год назад

    Great explanations. You brought maths, music theory and instrument synthesis together very clearly.

  • @Shirley-by4ty
    @Shirley-by4ty 3 года назад

    Man, this is absolutely golden. I've been looking for a video like this for ages

  • @abe3qyli637
    @abe3qyli637 4 дня назад

    To me the most important aspect of music and sound synthesis is the dynamic noise. It's why the same frequency sounds different on different instruments. Some may call this timbre. Noise does not follow the superposition principle. Generally even if we synthesize waves with digital oscillators, we tend to add some effects, detuning etc. to make "more natural" sound--meaning quasiperiodic sine waves with superimposed chaotic noise packets. Linear superposition of harmonics can be approximated, but does not reflect on the true resultant waveform when noise is in the mix.

  • @dexterrik
    @dexterrik Год назад

    You really fussioned maths I know with the beauty of music I always wanted to understand. Thank you for that!!

  • @DanielVieira-mj1ml
    @DanielVieira-mj1ml 3 года назад +1

    Nice video, I was looking for that.
    Thank you!

  • @theheartstringvirtuoso
    @theheartstringvirtuoso Год назад

    Absolute gold. Completely captivating

  • @PaxHominibusBonaeVoluntatis
    @PaxHominibusBonaeVoluntatis Год назад

    I've never seen before so good explanation of theory of sound and harmonics! It was great! Thanks!

  • @adarshkishore6666
    @adarshkishore6666 3 года назад

    That explanation was super. It is like music is singing out the beauties in mathematics. Also, love that last music where you combined all the instruments together into one great orchestra!

  • @agustinyavar525
    @agustinyavar525 3 года назад +1

    The quality of the videos is amazing, I'm subbing

  • @sujitjustinebarwa
    @sujitjustinebarwa 2 года назад

    This was the best presentation of music and math i have ever seen 😃

  • @derp4581
    @derp4581 3 года назад +6

    Whoa, I've been looking for a video about this for ages!

  • @Tantacrul
    @Tantacrul Год назад +1

    very nice work! Thanks!

  • @salmakhaled4402
    @salmakhaled4402 Месяц назад

    Absolutely enjoyed watching this, so insightful!

  • @HarnaiDigital
    @HarnaiDigital 3 года назад +1

    Congratulations for becoming part of RUclips's Algorithm. Keep up the Good work.

  • @ThongNguyen-fl9jp
    @ThongNguyen-fl9jp 3 года назад

    Thank you for so simply and quickly explaining these fundamentals with great illustrations! I will keep coming back to this and your channel!

  • @MusicBeats_
    @MusicBeats_ 11 месяцев назад +2

    I can't stop myself from subscribing to you... Your deep scientific and intuitive explanation of music through this video is amazing brother... Would be more happy if you do some sound designing tutorials (😅😅)
    And the beat at 10:25 is simple but 🥵🥵🥵

  • @mountp1391
    @mountp1391 Год назад

    how wonderful the times we had learned math, science, and music merge into one place through this video

  • @pactpoint
    @pactpoint 3 года назад +1

    This channel have some potential to be popular. Keep up the good work!

  • @nabil03
    @nabil03 3 года назад +7

    I Think your channel is gonna grow big. I feel proud to be here at It's fundamental wave state😄. Very nice explanation, and the music at last was sick.

  • @8888UNIVERSE8888
    @8888UNIVERSE8888 14 дней назад

    This is the type of a video I was searching for =))) Thank you!!!!