Inputs and output
Use WAV or M4A supported by your browser and operating system. Every successful render is a stereo 48 kHz signed PCM24 WAV.
48 kHz · PCM24 · Stereo
Local audio laboratory
Convolve WASM
Combine two WAV or browser-decodable M4A files without uploading audio. Processing stays in this tab and runs in a dedicated worker.
Browser local
Rust / WASM
Wet-only convolution
01
Choose source audio
Mono is duplicated to stereo. Stereo channels remain discrete.
02
Shape the render
Effects run after full wet-only stereo convolution.
03
Render locally
Diagnostics
Local crash diagnostics
No audio data, samples, filenames, or paths are recorded. Nothing is uploaded; records stay in this browser until you export or clear them.
A previous session ended without a normal completion marker. This is an
unexpected termination inference (recorded as unexpected-termination);
it does not prove an out-of-memory event
or identify Chrome's exact reason.
If only the active marker was recovered, detailed checkpoints were unavailable.
No retained diagnostic sessions.
Collect an Android crash report
- Run the files and options that previously reloaded or closed the tab.
- Reopen this page immediately after Chrome reloads or terminates it.
- Download or copy the recovered record before clearing or retrying.
JavaScript cannot record the exact instant or system reason Chrome kills a renderer.
About
Private by architecture
Browser decoding, a dedicated module worker, and a Rust/WASM DSP core keep the complete rendering pipeline inside this tab.
No hidden fallback
There is no upload service, server processor, or bundled
@ffmpeg/core. Unsupported M4A codecs fail explicitly.