Ready
Sound Pressure Level Monitor
Real-time SPL measurement with analog-style gauge, digital readouts, and data logging. Monitor current, average, and maximum sound levels with CSV export capability.
SPL Meter
Safe
Current
20.0
dB
Average
20.0
dB
Maximum
20.0
dB
Peak Frequency
0 Hz
Microphone inactive
Note: SPL readings are approximate. Browser microphone APIs have limitations and may not provide accurate absolute SPL values. For precise measurements, use a calibrated sound level meter.
Data Logger
0 entries
Enhanced Logging: Data is sampled fresh from the audio analyser every 500ms. Auto-export triggers every 500 entries, creating new sessions automatically. Export regularly to avoid data loss.