Audio Tools

5 tools live — more coming soon

Audio tools on TheToolss start with a free voice recorder: capture audio, watch a live waveform, and download WAV for notes, drafts, or quick clips. More audio utilities are on the roadmap — no signup required for core features.

Voice Recorder

Record voice memos and microphone audio online with live waveform and download.

Volume Normalizer

Normalize audio volume levels.

Decibel Sound Level & Distance Attenuation Calculator

Calculate sound pressure level (dB SPL) drop over distance using the inverse square law and compare perceived human loudness.

Acoustic Room Reverb RT60 Calculator

Estimate room reverberation decay time (RT60 in seconds) using Sabine formula based on room dimensions and surface absorption Sabins.

RC Low-Pass Filter Cutoff Frequency Calculator

Calculate -3dB cutoff frequency (fc), time constant (τ), and phase angle for passive analog RC low-pass and audio tone filters.

Audio Tools Online Free — Record & Export WAV | TheToolss