About BandPass
Professional real-time audio filtering with stunning spectrogram visualization.
BandPass Audio Filter - See and hear sounds like never before.
Isolate frequencies in real-time with a beautiful, responsive spectrogram. Perfect for diagnosing mechanical noises, analyzing speech, or exploring the world of sound.
Features:
• Real-time bandpass filtering - Touch-drag to isolate any frequency range
• Dual visualization modes - Waterfall spectrogram or spectrum analyzer bars
• Instant feedback - Hear the filtered result as you adjust
• Built-in presets - Voice (85Hz-3kHz), Rumble (20-250Hz), Whine (2-8kHz)
• Adjustable gain - Boost quiet signals up to 10x
Pro Features ($2.99 one-time):
• Unlimited recording with WAV export
• Playback with real-time filter adjustment
• Save and load custom frequency presets
• Multiple color themes
• No ads, full-screen visualization
Ideal for:
• Mechanics diagnosing engine/transmission noises
• HVAC technicians tracking rattles and vibrations
• Musicians analyzing harmonics and overtones
• Ghost hunters (we don't judge)
• Audio engineers on the go
Note: Headphones required for live feedback to prevent audio loops.
What's new in the latest 1.10
BandPass APK Information
Old Versions of BandPass
Super Fast and Safe Downloading via APKPure App
One-click to install XAPK/APK files on Android!




