AVFoundation Audio Reference

About

This skill serves as a definitive technical reference for developers building complex audio applications on xOS platforms. It covers everything from fundamental AVAudioSession configurations and AVAudioEngine pipelines to advanced features like bit-perfect DAC output and iOS 26+ spatial audio capture. Whether implementing low-latency recording, professional-grade AirPods integration, or utilizing the Cinematic framework for audio mixing, this skill provides the patterns and anti-patterns necessary to ensure high-quality audio performance and system compatibility.

Key Features

• Guidance for iOS 26+ features including AVInputPickerInteraction and high-quality AirPods recording
• Detailed AVAudioEngine pipeline configuration for custom audio processing and effects
• Best practices for bit-perfect DAC output and avoiding system-level resampling
• 61 GitHub stars
• Implementation patterns for AVAudioSession categories, modes, and interruption handling
• Spatial audio capture and playback patterns using ASAF, APAC, and First Order Ambisonics

Use Cases

• Building professional-grade recording apps that require high-quality Bluetooth input or spatial audio
• Implementing complex audio routing and effects processing using AVAudioEngine for games or creative tools
• Developing music players or podcasts that need background playback and robust interruption handling