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MEQ Signal Generator Suite
Two channels. Your sound.
Set Left and Right independently, or link them to adjust both together.
Independent: each side keeps its own frequency, type and level. Linking copies Left to Right.
Stereo workbench
LOCAL AUDIOL Left
Signal typeSine tone · exact frequency or slider
R Right
Signal typeSine tone · exact frequency or slider
Portable stereo preset
Choose one recording. Files stay on this device. Left and Right levels below control its output channels; frequency and signal type apply only to Generate mode.
PCM WAV recommended. MP4 requires a supported audio track. Pilot limits: 100 MB, 10 minutes. Audio replay only.
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SWEEP LAB
Sweeps, with room to draw.
Create a controlled sweep first, or sketch a sound with a pen, finger or mouse. The vertical scale runs from 0 to 10 kHz; 0 Hz is a boundary, not an audible tone.
Ten-second canvas · up to 32 strokes. Pen pressure adjusts stroke strength where supported. Finger input works as drawn. Drawing adds sound; it does not edit an imported recording.
Set the range and duration, then Play. Output is mono to both channels, separate from the generator's L/R settings.
Save or load this sweep / drawing
SLEEP & NATURE
A place to slow down.
Choose a starting scene, then blend each layer to your taste. All sounds are generated: place names describe inspiration, not field recordings or authentic wildlife.
Your own sound
Choose a recording from your device. Nothing is uploaded. Supported formats depend on your browser.
Press Play below or in the sticky bar to listen. Loop joins use the original recording; smooth crossfades are planned. Reloading the app clears the file selection.
Record the playing mix locally · stereo WAV · up to 5 minutes. MP3 export is not yet included.
Your blend
Ready · choose Play
Begin with low device volume. These are stylised synthetic textures, including bird-like tones and a smooth distant rumble. No sudden thunder cracks. This pilot pauses when hidden; overnight or screen-locked playback is not yet supported.
Sine: peak dBFS. Noise: peak ceiling, not equal RMS loudness. Replay: gain. Link applies to source levels; output trims remain independent.
Output meters show digital signal before your device volume control.
Ready · audio starts only when you choose