Impulse Response Viewer
Visualize waveform, a derived frequency-response view, and a simplified decay-time estimate for an existing impulse-response file.
What this tool tells you
What it does
Use this when you already have an impulse-response measurement or file and want to inspect it locally. The viewer shows a waveform, a derived frequency-response view, file duration, decoded sample rate, channel count, and a simplified decay-time estimate.
How to use it
Open a WAV, FLAC, or AIFF impulse-response file. Zoom and pan the waveform and frequency-response views, inspect the decay-time estimate, and export a view as a PNG if useful.
How to interpret it
The decay value is a simplified energy-crossing estimate, with extrapolation when needed, not a validated T20/T30 RT60 measurement. The frequency view depends on the input and browser analysis. Calibration, capture technique, noise, file length, and decoding limit room or device conclusions; opening an IR does not establish a calibrated room measurement.
Frequently Asked Questions
- What is an impulse response file?
- An IR file captures how a space or device responds to a short burst of sound. It encodes the reverb characteristics and frequency response, used for convolution reverb and room correction.
- What file formats work?
- WAV is the most common IR format. FLAC and AIFF are also supported. Most IR files are mono or stereo, typically at 44.1 or 48 kHz.
- How is this different from the Room / Microphone Analyzer?
- This tool inspects an existing impulse-response file. The Room / Microphone Analyzer instead measures live audio from your microphone in real time.
Selected files are processed locally in the browser and are not uploaded to TrueRes for processing. Open this page in a modern browser to use the interactive tool.