An online audio reverb tool lets you add realistic room ambience and spatial depth to your audio files directly in your browser. It simulates how sound reflects off surfaces in physical spaces—from small rooms to grand cathedrals—using advanced digital signal processing (DSP). No software installation is required; simply upload your audio, adjust parameters like reverb time and room size, preview in real-time, and export the processed file.

Echo is a distinct, delayed repetition of a sound (like shouting into a canyon and hearing your voice bounce back clearly). Reverb, on the other hand, consists of thousands of rapid, overlapping reflections that blend together into a smooth, continuous decay—this is what gives a room its characteristic "ambience." Our tool focuses on natural-sounding reverb rather than discrete echo effects.

Reverb time (RT60) depends on your use case: Vocals typically benefit from 0.8–1.5 seconds for a natural presence; Drums can handle 1.0–2.5 seconds for epic impact; Guitars work well with 1.0–2.0 seconds; Orchestral music often uses 2.0–4.0+ seconds to simulate a concert hall. For podcasts or speech, keep it short (0.3–0.8s) to maintain clarity. Experiment with our presets as starting points.

The Dry/Wet mix controls the balance between your original (dry) signal and the processed (wet) reverb signal. A setting of 20–40% wet adds subtle space without drowning the source—ideal for vocals and instruments. 50–70% wet creates a more ambient, atmospheric feel. 80–100% wet produces an ethereal, distant effect. Start around 30–40% and adjust to taste.

Pre-delay is the gap (in milliseconds) between the original dry sound and the onset of reverb reflections. In a physical space, it represents the time it takes for sound to travel to the nearest wall and back. Short pre-delay (0–20ms) feels intimate and immediate; longer pre-delay (30–80ms+) creates a sense of a larger space and helps separate the dry signal from the reverb, improving clarity—especially useful for vocals.

Absolutely. All audio processing happens entirely within your browser using the Web Audio API. Your files are never uploaded to any server—they stay on your device. This means complete privacy and security. There's no file size tracking, no cloud storage, and no third-party access to your audio content.

Upload: The tool accepts WAV, MP3, OGG, FLAC, M4A, and most other audio formats that your browser can decode. Export: Processed audio is exported as a high-quality WAV file (uncompressed, CD-quality or better) to preserve every detail of the reverb effect. WAV is universally compatible with all DAWs and audio software.

An impulse response (IR) captures the acoustic fingerprint of a real space. Our tool generates IRs algorithmically based on your parameters—reverb time, room size, and damping—creating a realistic convolution reverb effect. The generated IR is convolved with your audio to produce natural-sounding room ambience without needing to record a physical space.