SoundCoach vs Spectrum

Running sound at your church or small events without formal training? SoundCoach is the assistant standing next to you at the console. MEASURE IN REAL TIME • Decibel meter (dB SPL) with session history and color zones, so you know when volume is safe and comfortable. • Full-screen 31-band spectrum analyzer (RTA): see exactly which frequencies dominate your mix. • Feedback detector: an alert tells you which frequency is taking off before the squeal ruins the moment. DESCRIBE THE PROBLEM IN YOUR OWN WORDS "Sounds boxy", "too metallic", "can't understand the vocals", "it booms". No technical vocabulary needed — pick tags or write it the way you hear it. GET CONCRETE ADJUSTMENTS AI combines your description with the real analysis of your room's sound and gives you prioritized steps: which frequency to EQ (with exact gain and Q), how to set the compressor or gate, and what to do with effects. Every adjustment comes with a plain-language explanation of what will improve. PRIVACY FIRST Audio never leaves your phone. All sound processing happens on your device; only numeric analysis data goes to the cloud. No sign-up, no accounts, no personal data. BUILT FOR VOLUNTEERS SoundCoach was born for sound operators at churches and small events: people who serve with heart and learn on the go. Measurements are approximate (iPhone mics aren't calibrated instruments), but more than enough to make better mixing decisions. The free tier includes the meter, the spectrum analyzer, the feedback detector, and a limited number of AI recommendations per month. Terms of Use (EULA): https://soundcoach-1c304.web.app/terms Privacy Policy: https://soundcoach-1c304.web.app/privacy

Spectrum turns your phone into a modern real-time audio analyzer - the clean, fast tool that older spectrum apps never gave you. See sound the moment it happens: a live FFT frequency spectrum and a scrolling spectrogram (waterfall), with automatic peak detection and the matching musical note. Built for a phone screen, with a beautiful dark and light theme - not a cramped desktop port. WHY SPECTRUM • Modern, readable interface - designed for touch, dark & light themes • Save your measurements and revisit them anytime (most analyzers forget everything the moment you close them) • Export the spectrogram as a high-resolution image, or your data as CSV • Works on both iPhone and iPad • Real peak frequency + musical note readout, in cents FEATURES • Real-time FFT spectrum, log or linear frequency axis • Spectrogram (waterfall) view • Tap the chart for a frequency cursor with dB and musical note • Peak hold and peak-frequency tracking • Musical note detection (A4 = 440 Hz) • A-weighting for perceived loudness • Adjustable FFT size (2048 / 4096 / 8192) • Save, name and organize measurements • Image & CSV export • 8 languages SPECTRUM PRO - one-time purchase, no subscription • 1/3 octave RTA view with per-band peak hold - the classic real-time analyzer used for live sound and room tuning • Tone generator: sine tones, 20 Hz-20 kHz logarithmic sweep, white & pink noise for testing speakers and room acoustics • Peak list: the strongest peaks with harmonics tagged • Up to 4 frequency markers on the chart • Calibration offset (±20 dB) to match a reference meter • Extra-high resolution 16384 FFT • High-resolution image export and no ads, forever Everything is processed on your device - no audio is ever uploaded. Microphone access is the only permission needed. Perfect for musicians, audio engineers, students, DIY speaker builders, hum & noise hunters, and anyone curious about the sounds around them.