each impulse response is a real measured space or piece of gear — the springs are modelled. or load your own.
WAV, AIFF, FLAC or MP3 · decoded in-memory on your machine — never uploaded, because there is no server to upload to.
Or browse filesconvolving with an offline Web Audio render — faster than real time, entirely in this tab. closing the page cancels the render; nothing persists anywhere.
every impulse response below lists its verbatim attribution, license, source link where one exists, and the changes made to the original recording. CC BY assets require this credit and change disclosure when you publish work made with them; CC0 assets require none. the synthesized spring IRs list their provenance instead of a source page.
a recording of how a real space or piece of gear answers a short test sound, usually a clap or a sine sweep. convolving your audio with that response places your sound in that space, so the reverb comes from a measured room instead of an algorithm. every IR in the library lists its license, source and changes in the attribution ledger above. the springs are modelled, and the ledger says so.
with an OfflineAudioContext: your browser convolves the whole file faster than real time, so there is no playback wait, and writes a 16-bit PCM WAV with TPDF dither. closing the page cancels the render; nothing persists anywhere.
no. WAV, AIFF, FLAC or MP3 goes in, gets decoded in-memory on your machine, and the result is written by your browser. there is no server to upload to.
yes. an IR you captured yourself, say a cab or a stairwell, loads as the space and convolves exactly like the built-ins.
yes. the CC0 spaces need nothing at all; the CC BY ones ask for the verbatim credit shown in the ledger when you publish. your own audio stays yours either way.