Fast Fourier Transform and Constant Q Explanation

[@franobili]

Amazing explanation, a pearl in the internet

[@DheerajAeshdj]

None of the other explanations for constant Q transform are doing as good a job as this. Thanks bro

[@jakefreise7601]

This is an amazing explanation! I recommend remaking this video with a script, cuts, and graphics and you will get a ton of views. I found this explanation more intuitive than a lot of the big math youtubers with fancy animations.

[@SunnyOhm]

Very useful for those who don't like/understand all the theoretical math and prefer intuitive explanations to quickly start using said math. Also very useful for understanding said theoretical math without melting your own brain. Thanks! I personally finally understood what FFT actually _does_, not just what it produces, and especially how the phase of a complex result ends up representing the phase of the signal at corresponding frequency.

[@-long-]

10:00 I had to lower his speed to 0.5 at Constant-Q transform part. This guy should be great with slides if he does. Documentation about Constant-Q transform is not many and too difficult to read for beginners :(

[@ilyay.rostovtsev8538]

Hey, man, this is Ilya who co-taught Music 158A when you took it. Love the video and am excited you presenting this in an awesome and clear way. Let me know if you need a letter of recommendation full of glowing praise! :)

[@thisunravels2358]

+Ilya Y. Rostovtsev Thanks, Ilya!

[@alabrrmrbmmr]

A hidden gem of a video! 🙏

[@josemariagomezsocola6246]

Wow, an amazing explanation! It's really impressive that you explain it from the top of your mind. It took me around 4 years to understand it at this level.

[@Buunshin_]

Thank you so much for explaining this without going into the math

[@aphoff]

I'm currently looking into the non-stationary gabor transform for my research. Thanks so much for your explanation!

[@aidanbrophy9947]

This is so helpful. Im doing a research project on gravitational wave data and having an understanding of this material is crucial, thank you

[@kevon217]

Great video and I also wish I had this back when first learning Fourier transform.

[@michaelkohlhaas4427]

Wow! Just what I've been looking for. Thanks a lot!

[@son_of_a_dentist8107]

Bro u r god I am makin a ML project u helped. LOT

[@mahandolatabadi2600]

Thank you so much. You are amazing.❤

[@prabhapro3663]

can u explain constant q cepstral coefficent

[@lifeofmateumalatji]

Thank you for our insight. Can you please make another video on Variable Q-Transform.

[@jonathanpeck]

This is a very good video! Well done :) You should definitely make more explanatory videos like this.

[@jfowers1]

Thank you for this. A quick question - @2:22 you mention that we calculate FTs for sinusoids that oscillate with up to N/2 cycles within the window. Wikipedia seems to disagree stating we should go up to N-1 cycles (i.e. k in [0, N-1]) en.wikipedia.org/wiki/Discrete_Fourier_transform. Have I missed a beat here?

[@jfowers1]

ah...I guess these coefficients are simply the complex conjugate of ones already calculated e.g. X[N/2 + 1] = X[N/2 - 1]*

[@thisunravels2358]

Exactly. Those don't give any additional information unless the input is made of complex numbers.

[@ketanvibhandik6082]

Very intuitive!

[@julianferry3059]

This is a great explanation, thanks! Are there any significant papers on this that have come out in the last 5 years?

[@joel.ds.m]

This is unbelievably helpful, thank you!

[@vedhasp]

Very nicely done! Many thanks for this!! :)

[@lukasmartak]

Very useful tutorial, thanks!

[@kora5]

Very good explanation. Thank you!

[@JAKKOtutorials]

great video, amazing explanation! thanks

[@DmitryIvanovDfcreative]

Did I get right that you're just suggesting replacing const-Q transform with a bunch of FFTs? Is there an info about the complexity of constant Q transform btw? Also is that the same as LFT academic.oup.com/gji/article-pdf/92/1/171/1832736/92-1-171.pdf ? Thanks for the great explanation!

[@guachito002]

Exceptional explanation, thank you!

[@presidentkush]

really helpful cqt top down explanation

[@abdurhmanalbasir5311]

Very helpful. Impressive!

[@visualizedata6691]

Superb

Great video!

[@woulg]

Thank you for this!

[@ratfuk9340]

Thanks man

[@GutoMottaMus]

Wow, that was really helpful (:

[@KatyKarineLee]

thank you so much!

[@elicountrywood1259]

Thanks!

[@tysk_dt]

That's a fav

[@zes7215]

no such thing as dominx or not

[@aliaahmedmorsimoustafa6684]

Fantastic explanation. Thank you!

[@danfarthing4332]

Thank you! Great explanation!