About PartyGlow

What is PartyGlow?

PartyGlow turns your iPhone into a beat-reactive light show. It analyzes music in real time using FFT-based audio processing, then synchronizes your device flashlight, screen visualizers, and color effects to every beat, bass drop, and melody.

Whether you're at a concert, hosting a party, or just enjoying music at home, PartyGlow transforms your phone into the ultimate visual companion.

Key Features

Technical Details

PartyGlow is built with Swift and SwiftUI for iOS 18.0+. Audio analysis uses Apple's Accelerate framework (vDSP) for 1024-point FFT with Hann windowing. Beat detection uses adaptive sub-band energy analysis across bass (60–130 Hz) and mid (301–750 Hz) frequency ranges with variance-adaptive thresholds.

All visualizers are rendered using SwiftUI Canvas at 60fps via TimelineView. The flashlight is controlled through AVCaptureDevice with smooth brightness interpolation.

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