Sound Pressure: Audio SPL
Measure Sound Precisely
0 ratings
Archived App (Last seen on 21 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Sound Pressure turns your iPhone into a real-time dB SPL meter. Using your device's microphone, it captures ambient noise levels in decibels — perfect for workplace safety checks, audio system tuning, music venue compliance, or simply finding the quietest spot in a coffee shop.
Watch the live readout, monitor min/max/average over time, and see the dB trend on a scrolling chart. Start a recording session to capture noise patterns, then export everything as CSV for review.
Key Features:
- Real-time dB SPL measurement via microphone
- Min, max, and rolling average tracking
- Live dB chart with scrolling history
- Session recording with timestamps
- CSV export for full sessions
- Minimum dB filter to ignore silence
- Sample rate display for transparency
- Clean, high-contrast dark interface
Perfect for HVAC technicians, audio engineers, OHS inspectors, music teachers, parents checking child noise exposure, or anyone curious about how loud their world is. Know your decibels — instantly.
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What's New in Sound Pressure
1.0.6
May 14, 2026
- Performance and stability improvements - Updated ad personalization handling for EEA users
