Noise Recorder - Decibel Meter

A personal noise monitoring tool to track surrounding noise patterns and find your routine.

Real-Time Noise Monitoring

• Live decibel (dB) display

• Waveform chart for visualizing noise changes

• Noise level indicator: Quiet / Moderate / Loud

Auto Recording & Segment Management

• One-tap recording with automatic segment rotation (M4A format)

• Segments below threshold are auto-deleted to save storage

• Screen stays on during recording

Automatic Noise Event Detection

• Detects sudden noise changes automatically

• View peak dB, average dB, and duration per event

• Built-in sound tags: Footsteps / Thud / Construction / Water / Music·TV / Pet / Other

• Add your own custom tags (e.g., door, appliance) ← NEW

Filtering & Review ← NEW 섹션

• dB threshold filter — show only events above a chosen level

• Tag exclusion — hide specific tags (e.g., your own sounds)

• Filter settings saved per screen (Records / Stats / Export)

• Jump between segments with ⏪ / ⏩ buttons, position shown as "Part N/M"

Statistics & Analysis

• Hourly noise chart

• Quiet time vs. noisy time ratio

• Loud noise occurrence count

• Weekday / weekend filters ← NEW

Record Management & Export

• Session-based recording list with details

• Segment playback and noise event review

• Export to PDF / Excel with filter applied ← 보완

• Photo attachment support

Convenience Features

• Korean / English language support

• Automatic dark mode support

• Customizable segment length, threshold, and sensitivity settings

This app is a personal monitoring tool for reference only. Measurements may vary depending on the environment and do not replace professional measurement equipment.