BandPass

ProDirt

Contains adsIn-app purchases

About this app

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

Fix bug in billing