Sound & Audio Tools
Free online acoustic tools, decibel meters, calculators, and audio analyzers.
Online Decibel Meter
Real-time sound pressure level (dB) meter using your mic with peak, average, and min/max noise metrics.
Background Noise Test
Assess ambient room noise levels to qualify environments for recording, calls, or studying.
Decibel Calculator
Calculate decibel addition, logarithmic sound summation, and distance attenuation loss.
Frequency Analyzer
Real-time FFT audio spectrum analyzer to inspect bass, mid, and treble frequency distribution.
Microphone Test
Test microphone input signal, channel balance, latency, clarity, and voice level responsiveness.
Noise Exposure Calculator
Calculate daily noise dose percentage and maximum safe exposure time based on safety standards.
Online Hearing Test
Evaluate high and low frequency hearing sensitivity with controlled audio tone sweeps.
SPL Converter
Convert Sound Pressure Level (dB SPL) between dBA, dBC weightings, and Pascals (Pa).
Tone Generator
Generate pure sine, square, triangle, and sawtooth audio frequencies from 20Hz to 20,000Hz.
Volume Level Comparator
Compare decibel differences to human perceived loudness shifts (+3dB vs +10dB).
No tools found
Try searching terms like “decibel”, “mic”, or “frequency”.