Spectral Analysis in Python (Introduction)

Рет қаралды 23,627

Күн бұрын

Check out my course on UDEMY: learn the skills you need for coding in STEM:
www.udemy.com/course/python-s...
In this video I use recorded notes on my guitar to introduce the concept of spectral analysis.
Code:
github.com/lukepolson/youtube...
Discord:
/ discord
Spectral Analysis Book:
www.amazon.ca/Spectral-Analys...

Пікірлер: 42

@imanuelbaca2468 2 жыл бұрын

You really threw a whole remix of the pysic professor in the middle of the video. Its beautiful.

@javicontry 2 жыл бұрын

Amazing content as usual, I like when you introduce 'real' components and apply the theory to them. Everything is so much easier to understand like this.

@amirhosseindaraie5622 2 жыл бұрын

I love this one so much!!!! Other contents are perfect! We support you, man! Keep making videos like this and teach us more!

@graycat7777 2 жыл бұрын

Would love to see more content on power series, this was awesome and the statistical stuff sounds interesting too.

@edwinlaboy5304 2 жыл бұрын

Hi from Puerto Rico. Love the videos, KEEP EM COMING

@AJ-et3vf 2 жыл бұрын

Awesome video! Thank you!

@meetghelani5222 4 ай бұрын

Mr. P is the one of the people we need to teach computational physics!

@saghz5156 2 жыл бұрын

Would be interested in more videos about spectral analysis

@Meromorphic 2 жыл бұрын

This is awesome!

@ginaszajnbokharari470 9 ай бұрын

FANTASTIC, IT WAS WHAT I WAS LOOKING FOR. I'M ALREADY LIKE AND FOLLOW! AMAZING 🤓

@adamtaylor2142 2 жыл бұрын

As a guitar player, I completely vibe with when you picked up the guitar to demonstrate muting, but then just had to do a little blues jam. It is impossible not to.

@kenmeyer100 2 жыл бұрын

great channel!

@changelings8074 2 жыл бұрын

Hi @Mr. P Solver, it would be great if you could make a video on solving for a non linear Hamiltonian using scipy's root finding method (a.k.a : by iterations).

@NicholasWong-vv1nn 6 ай бұрын

WOOOOOP!

@evandowling2862 2 жыл бұрын

Would nonlinear effects such as sum frequency generation (w+w=2w), difference frequency generation (3w-w=2w) be responsible for the dips/bounces you see? I know these are well studied in nonlinear optics, but I don't know of the equivalent in acoustics.

@TheBlindfischLP 2 жыл бұрын

My guess for the pattern in the second and fourth harmonic would be, that they're both exactly one (or two for the fourth harmonic) octaves above the fundamental E, so they should resonate particularly well with the higher E string. Since the high E string won't have the exact same frequency as the harmonics (out of tune...), there will be an interference between the sounds, or a beat, which can be heard going louder and quieter.

@MrPSolver 2 жыл бұрын

Ooo interesting. I'll have to test this by muting the high E string to see if I can remove this resonance effect

@wiremetrics 2 жыл бұрын

I think you're right. I tried to calculate what the fundamental frequency of the high E string would need to be to produce the beats frequencies seen on the second and third harmonics, but I couldn't get it to match both simultaneously. Maybe this is because the high E string doesn't resonate at the third harmonic of low E? Curious to see what Mr. P learns when he tests it.

@TheBlindfischLP 2 жыл бұрын

@@wiremetrics was there also a beat for the third harmonic? That would be surprising, since it's not an e note, but a quintic higher

@wiremetrics 2 жыл бұрын

@@TheBlindfischLP I believe you can see it in the orange curve at: kzfaq.info/get/bejne/jbN_paZz3d7LpnU.html. I reproduced his plots using Matplotlib's spectrogram where I played with FFT lengths to make it more visible. I share your surprise. I was convincing myself that maybe the B string is involved, it being the third harmonic of the low E string. I played around with touching the B string after strumming the E string to see if I could feel any induced vibration, but couldn't feel anything. Couldn't feel anything on the high E string either, though.

@TheBlindfischLP 2 жыл бұрын

@@wiremetrics the B string makes sense. On a piano at least, you can get the third harmonic string to resonate clearly.

@HizBela_16 2 жыл бұрын

hats off

@bobknarr Жыл бұрын

I believe the ins and outs in intensity are due to other parts of the guitar passing some of the energy around, I mean the whole point it to pass it to the sound board. I would love some spectral analysis for FTIR/RAMAN Also it killed me in the beginning to hear it referred to as "muting", I am used to "muting" being palm muting. What you are doing I refer to as playing a harmonic and the position can be specified, for instance in Harvest Moon there are harmonic positions played, ie H7 is the 3rd.

@jcmschott1895 Жыл бұрын

Please, make a statistical video on this theme!

@jamesplant5280 10 ай бұрын

Perhaps, if you muted and then quickly lifted your finger, depending on the position of the muting, maybe it produced interactive harmonics with constructive interference at a specific frequency range?

@amirhosseindaraie5622 2 жыл бұрын

Can you make more videos on spectral analysis? Also how to make spectrograms, and wavelet analysis?

@ShinjiCarlos 2 жыл бұрын

Up!

@lajuelar 2 жыл бұрын

Hi Mr/ P Solver I suggest you also make a tutorial on Machine Learning. I want to learn ML to use it in predicting earthquake.

@paulsn Жыл бұрын

Do wavelet analysis next

@denylsonalvarez6405 2 жыл бұрын

Im sorry, I have a problem related to programming a 4th order Runge-Kutta method for a system of 987 coupled linear differential equations, I have the matrix of the system but I have a hard time solving it. Could anyone help me?

@galenseilis5971 2 жыл бұрын

I would definitely like to see you cover a statistical version of spectral analysis of time series.

@thunderjet1945 2 жыл бұрын

Yes please!!’

@fufaev-alexander 2 жыл бұрын

Will it be a video series? 🤩

@MrPSolver 2 жыл бұрын

Maybe. Might do an experiment to investigate the dips/bounces over time for the power of the 2nd and 4th harmonics of the low E.

@adamkatav9752 Жыл бұрын

Could repeat the experiment on a guitar without the other strings? Maybe the rest of them interfere with the E string...

@direndeniz8817 2 жыл бұрын

First 👋

@V7Official 2 жыл бұрын

👏

@baldhat2498 2 жыл бұрын

👏much wow

@direndeniz8817 2 жыл бұрын

@@baldhat2498 😅

@MrPSolver 2 жыл бұрын

Man found the video before it was even taken off of unlisted

@babajani3569 2 жыл бұрын

Thank you. I am a high school student so sorry about my ignorance. My teacher was teaching us something and he used geogebra to do so. It was very good simulating what he was trying to convey. I just wanted to know that why can't we just use geogebra instead of python to solve physics and maths problem because is so much easier. What is it about Python that geogebra can't do? Sorry about my ignorance. Thank you.

@meetghelani5222 4 ай бұрын

What's Mr.P's actual name though ?