SOUND Part 3/9 | Microphone & FFT - Basics: Frequency spectrum (Processing tutorial creative coding)

Processing sound with Microphone and FFT Fast Fourier Transform analyzer. This tutorial introduces the Fast Fourier Transform (FFT) algorithm to analyze the sound of a microphone and display a frequency spectrum. Important classes and two methods of control are discussed: The frequency range variable and a smoothing factor. This tutorial covers the essentials of FFT analyzer that will be necessary in the next videos.

This tutorial is for Members. Code for download is available in the Community tab.
You can also watch the video on   / thedotisblack  .

****CHAPTERS****
0:00 Introduction
2:26 What is a frequency domain plot?
3:33 What is FFT (Fast Fourier transform)?
4:38 What is Sampling Rate?
7:23 Processing code: Let's begin!
8:46 Work with bands and array to store amplitudes
10:09 Analyze() and display the frequency spectrum
12:19 Use map() to project the frequency plot onto the entire window
15:56 Change strokeWeight with equation
16:53 Change the range of visible frequency spectrum
18:58 Use the mouse to interact with the spectrum range
20:03 Add a smoothing factor to control the spectrum
22:13 Use the mouse to change the smoothing factor
23:23 Display frequency range and smoothing factor
27:02 Mirror the spectrum lines
28:51 Add shades, use a transparent layer for background
30:17 Conclusion & time-lapse

****SOUND WITH PROCESSING****
Sound with Processing - Introduction

Part 1. Microphone & Amplitude - Basics
   • SOUND Part 1/9 | Microphone & Amplitude - ...  
Part 2. Microphone & Amplitude - Example
   • SOUND Part 2/9 | Microphone & Amplitude - ...  
Part 3. Microphone & FFT - Basics - Frequency spectrum
   • SOUND Part 3/9 | Microphone & FFT - Basics...  
Part 4. Microphone & FFT - Linear plot example

Part 5. Microphone & FFT - Polar example

Part 6. Audio file & Amplitude - Basics

Part 7. Audio file & FFT - Linear example

Part 8. Audio file & FFT - Polar example

Part 9. Export audiovisual as PDF

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