Sweep a bounded all-pass chain with linked stereo settings, stage choices, feedback, mix and output trim.
No file selected.
Up to 128 MiB per file; decoded audio up to 256 MiB (about 23 min mono / 11½ min stereo). Formats depend on your browser's decoder. Working audio and WAV exports use 48 kHz.
Choose audio to begin. Nothing plays automatically.
No audio loaded
Your waveform will appear here.
Load audio to choose a section.
Click the waveform to seek, or use the adjacent transport and exact time controls. Settings apply live. Stateful effects restart their history at the cursor; full-file output is authoritative. Output keeps original duration without an appended tail.
Playback stopped.
Uncheck to compare original decoded audio. Exports always use selected settings.
Quick sliders pause for finer exact values; the exact field remains usable.
The original file stays unchanged.
Four, six or eight first-order all-pass stages share a geometric frequency sweep. Live controls and stage weights transition smoothly. Seeking resets filter and feedback history. Filter ringing is cut at the source end; no tail is appended.
Create a WAV to preview the actual result.
48 kHz · 16-bit PCM WAV · original channels and frame count. Effect settings do not change the container format. Input up to 128 MiB; source/output float buffers each up to 256 MiB, subject to device memory. Final PCM clipping is counted. Tags/artwork are omitted. Settings changes clear exports; Stop terminates the local worker. No source or settings are sent to a server.
Your audio is never uploaded to any server. Decoding, effect processing, playback and WAV encoding run locally with self-hosted code. Source files stay unchanged, with no account or audio history.
Four, six or eight first-order all-pass stages share a geometric frequency sweep. Live controls and stage weights transition smoothly. Seeking resets filter and feedback history. Filter ringing is cut at the source end; no tail is appended.
Yes. Settings are delivered to the playing local AudioWorklet without restarting the source. Continuous controls use short smoothing transitions; discrete bit/hold changes intentionally step. Exports apply current fixed settings, not a recording of knob movements. Original comparison affects monitoring only.
No. The original working frame count and mono/stereo channel count remain. Output is always 48 kHz, 16-bit PCM WAV. No tail is appended; filter ringing can be trimmed at the end. Tags/artwork are omitted. The actual encoded waveform/player must load before download enables.
Stateful filters and gain envelopes restart at the chosen cursor. Their startup can differ from a full-file export. Use the actual generated WAV for the complete fixed-settings result.
One mono/stereo file up to 128 MiB, decoded at 48 kHz within a 256 MiB float budget. Output has its own 256 MiB float budget; device memory may impose lower limits. Browser decoder support varies. Live AudioWorklet needs HTTPS or localhost and a supported browser. Stop/edit/clear/replacement terminates export and discards obsolete results.
