Room Decay Analyzer
See how a room fades.
Capture a clap, play a logarithmic sweep, or import an impulse response. Room Decay Analyzer shows the energy-time curve, Schroeder decay, EDT, T20, T30, estimated RT60, clarity, noise floor, usable decay range, and repeatability on device.
Evidence first
Every number carries its caveat.
The app rejects clipped or noisy captures, records fit windows and confidence, and distinguishes a calibrated chain from an uncalibrated phone microphone.
Capture or import
Use a clap, an on-device logarithmic sweep, or WAV/AIFF/CAF import.
Transparent fits
Inspect ETC, Schroeder decay, EDT/T20/T30 windows, C50/C80, and per-band abstentions.
Compare locally
Save reports on device, repeat a setup, pair before and after, then export JSON, CSV, or text.
Boundaries
Useful for decisions, honest about limits.
Room Decay Analyzer is not a hearing-safety tool, building-code certificate, treatment recommendation, or guarantee of acoustic performance.