AVFoundation Magic: Real-Time Audio Visualizer in SwiftUI

Опубликовано: 11 Апрель 2025
на канале: NDC

101

🎶 Transform Live Sound into Visuals with SwiftUI & AVFoundation! 🚀

Ever wondered how music apps create dynamic, real-time visualizers that react to sound? In this tutorial, we’re diving deep into AVFoundation and SwiftUI animations to build a real-time audio visualizer from scratch! 🎤✨

🔊 What You’ll Learn:
✅ Capture live microphone input using AVAudioEngine
✅ Extract frequency data (Bass, Mid, Treble) with FFT analysis
✅ Visualize sound waves dynamically using SwiftUI animations
✅ Implement fast, efficient signal processing with Apple’s Accelerate framework
✅ Build a multi-bar equalizer-style visualizer 🎨🎶

📌 Perfect for music apps, voice analyzers, and real-time sound interactions!

🔥 Download My Project Files & More! 🔥
👉 Get the source code & Swift resources here:
🔗 https://ndcswift.github.io/Swift-Proj...

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Timestamps:
0:00 Intro & Example
0:53 Project Setup
1:30 Adding AudioAnalyzer
1:51 Imports
2:42 Creating our class
4:00 Tracking Bass / Mid / Treble
5:27 Capture live audio
6:40 Starting Audio Engine
9:17 Stopping Analysis
9:51 FFT
14:30 Recap of our class
16:14 Displaying our data in ContentView
17:56 Displaying data in bars
20:36 Starting the analyzer with a button
21:20 Getting user permission (Info.plist)
22:03 Simulator
22:27 Testing on a real device
23:16 Next steps & Wrap up