Left click on audio spectrum to set bandpass filter. Double click to remove
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Auto-learns noise on startup and frequency changes. Continuously adapts to slow variations. Higher strength = more aggressive. Adaptation rate controls how quickly the filter tracks changing noise.
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Creates a wider stereo image from mono audio. Width controls overall effect, Delay adds spatial depth, Separation controls channel independence.
0msDISABLED⚠ CLIPPING
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Active Channels
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Audio Recorder
Stopped
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Note: Recording captures the processed audio output including all active filters and effects.
Recordings are saved in WebM format with Opus codec.
Set Frequency Offset
What frequency do you expect the tone to be at?
Enter the expected frequency in Hz (e.g., 0 for DC, 1000 for 1 kHz tone).
The system will adjust the dial so this signal appears at 1 kHz.
Clear Filter Settings
Are you sure you want to clear all saved filter settings?
This will remove all saved filter configurations from your browser. This action cannot be undone.
Audio Buffer Threshold
Select the maximum audio buffer before frames are dropped:
Lower values (50-100ms): Minimal latency, may drop more frames on slow connections Medium values (150-200ms): Balanced performance (recommended) Higher values (300-500ms): More stable on poor connections, higher latency
The buffer indicator colors adjust dynamically based on your selection.
When enabled, the spectrum waterfall will drop frames to stay synchronized with audio playback. Disable this if the spectrum appears to stall or freeze.