Information Theory & Signal Processing Videos Hacker News Recommends

explainer#13

But what is the Fourier Transform? A visual introduction.

3Blue1Brown

“this was the first thing that ever really made sense to me”

16 HN recommenders · 2018–2025

explainer#33

D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org)

FL Studio

“might be the best explanatory video I have ever witnessed”

15 HN recommenders · 2017–2026

explainer#188

The Fast Fourier Transform (FFT): Most Ingenious Algorithm Ever?

Reducible

“It derives the FFT algorithm from polynomial multiplication and it’s fantastic . I rewatch it every 6 months or so.”

7 HN recommenders · 2021–2026

explainer#472

(1/4) Intro/History: Introducing a 100-year-old mechanical computer

engineerguy

“There is a series of four fantastic videos”

6 HN recommenders · 2015–2023

talk#533

David Kriesel: Traue keinem Scan, den du nicht selbst gefälscht hast

media.ccc.de

“If you speak german and haven’t seen this yet, watch it, this is a classic.”

4 HN recommenders · 2019–2025

explainer#560

The more general uncertainty principle, regarding Fourier transforms

3Blue1Brown

“The clearest, most intuitive explanation of the Fourier Uncertainty Principle that I have come across is by Grant Sanderson of 3Blue1Brown.”

7 HN recommenders · 2019–2025

explainer#568

JPEG DCT, Discrete Cosine Transform (JPEG Pt2)- Computerphile

Computerphile

“I finally understood DCT after watching”

6 HN recommenders · 2015–2026

explainer#577

Fourier Optics used for Optical Pattern Recognition

Huygens Optics

“The video happens to have one of the best explanations of Fourier transforms I've yet encountered.”

5 HN recommenders · 2021–2025

explainer#757

Characters, Symbols and the Unicode Miracle - Computerphile

Computerphile

“a wonderful, terse, very informative video describing how utf-8 encoding works and why”

4 HN recommenders · 2014–2025

explainer#964

But what is a Fourier series? From heat flow to drawing with circles | DE4

3Blue1Brown

“Helped click that there is a perfect visual analogy to the deconstruction of complex audio to sine waves.”

4 HN recommenders · 2020–2025

talk#981

Dasher: information-efficient text entry

Google TechTalks

“Dasher is fantastic, because it's based on rock solid information theory, designed by the late David MacKay.”

2 HN recommenders · 2016–2025

explainer#1101

But what are Hamming codes? The origin of error correction

3Blue1Brown

“I would strongly recommend anyone interested in the topic to check out any of these videos”

4 HN recommenders · 2020–2023

explainer#1405

The Most Underrated Algorithm

Veritasium

“The 2-minute brute-force explanation of Fourier transforms in a recent Veritasium video”

5 HN recommenders · 2022–2024

explainer#1759

The Superheterodyne Radio: No really, that's its name

Technology Connections

“This video is a great explainer (and I also highly recommend every other video on the channel)”

3 HN recommenders · 2019–2024

explainer#1817

Why Snow and Confetti Ruin YouTube Video Quality

Tom Scott

“Tom Scott has a good video where turns up and down the quality live so you can see it in a single video”

3 HN recommenders · 2018–2024

explainer#1909

The Loudness War

Matt Mayfield Music

“this video which gave a very succinct answer to my question”

3 HN recommenders · 2009–2025

lecture#1963

Lecture 1: Introduction to Information Theory

Jakob Foerster

“It was very enjoyable for me to learn the material from his lectures.”

3 HN recommenders · 2018–2024

demo#2079

Ptolemy and Homer (Simpson)

Santiago Ginnobili

“This is my favourite visualisation of this fact”

3 HN recommenders · 2013–2022

talk#2168

CppCon 2015: Timur Doumler “C++ in the Audio Industry”

CppCon

“he goes through real time strategies to keep the response time under around 30ms IIRC”

3 HN recommenders · 2016–2026

music#2503

Justin Bieber 800% Slower

turinpt2

“I'm not even kidding. It's superb.”

2 HN recommenders · 2012–2024

course#2633

1.1 - Course outline

LaintalAy

“If anyone wants to get into the nitty-gritty details of GPS / GNSS, there's a good series of lectures (course) available from Standford University”

2 HN recommenders · 2019–2023

demo#3066

Onslaught - Bad Apple 64 - C64 Demo

RetroDemoScene

“C64 version using VQ compression”

2 HN recommenders · 2018–2026

explainer#3074

Floating Point Numbers - Computerphile

Computerphile

“Tom Scott's fun and simple take on Floating Points is a good video explaining why such weird errors happen”

2 HN recommenders · 2015–2023

talk#3235

David Kriesel: Lies, damned lies and scans

Free and Open Source Software Conference (FrOSCon) e.V.

“There a few videos of David Kriesel explaining the bug for the curious”

2 HN recommenders · 2020–2026

explainer#3470

Solving Wordle using information theory

3Blue1Brown

“still worth a watch.”

2 HN recommenders · 2022–2024

explainer#3488

Hold music used to sound better. Here's why.

Tom Scott

“Tom Scott did a video on it.[0] It basically boils down to telephone switches starting to compress the audio.”

2 HN recommenders · 2018–2023

tutorial#3539

Samplerates: The Higher the Better, Right?

FabFilter

“Dan Worrall made a fantastic video which touches on Nyquist.”

1 HN recommenders · 2021–2023

talk#3707

Succinct Data Structures

Edward Kmett

“one of his many talks that left me with an incredibly lasting impression”

1 HN recommenders · 2017–2025

interview#3979

Marcus Hutter: Universal Artificial Intelligence, AIXI, and AGI | Lex Fridman Podcast #75

Lex Fridman

“it made sense to me”

1 HN recommenders · 2020–2025

demo#3998

The Visual Microphone: Passive Recovery of Sound from Video

Abe Davis's Research

“it can be possible to extract audio from video, by careful processing of the small motions the sound induced in objects in the frame”

1 HN recommenders · 2015–2026

demo#4243

Progressive decoding: JPEG vs JPEG XL vs AVIF

Jon Sneyers

“AVIF only shows when it is 100% finished.”

1 HN recommenders · 2021–2026

explainer#4626

I published music on Tidal to test MQA - MQA Review

GoldenSound

“the video breakdowns I've watched on MQA are interesting listens even as someone who doesn't use Tidal.”

1 HN recommenders · 2021–2023

explainer#4640

Epicycles, complex Fourier series and Homer Simpson's orbit

Mathologer

“It's similar to Mathologer's "Epicycles, complex Fourier series and Homer Simpson's orbit"”

1 HN recommenders · 2022–2023

demo#4729

Dial Up Modem Handshake Sound - Spectrogram

Bitcore

“I went back and watched this youtube video again and it made more sense to me”

1 HN recommenders · 2014–2024

explainer#4737

I built a QR code with my bare hands to see how it works

Veritasium

“Derek Muller just did an interesting take on QR codes and their history”

1 HN recommenders · 2024–2025