🔊 Sound Generator
Web Audio synthesis lab — frequency, stereo/binaural, FM, AM, envelope, sweep & live visualization
audio: stopped
↺ Reset to defaults
▶ Start Audio
Oscilloscope
Spectrum
Freq position (20Hz–20kHz)
Frequency & Channel
Mode
Both (Center)
Left only
Right only
Stereo Pan
Binaural (independent L/R)
Pan
C
Frequency
440 Hz
Hz (20–20000)
Left freq
Right freq
A4
in tune
Waveform
Sine
Square
Saw
Triangle
White Noise
Pink Noise
Master Vol
25%
L
R
Frequency Modulation (FM)
Enable FM
Mod freq
5.0 Hz
Mod depth
20 Hz
Amplitude Modulation (Tremolo)
Enable Tremolo
Rate
5.0 Hz
Depth
50%
Envelope (ADSR)
Continuous drone (ignore envelope) — uncheck to play only while triggered
Attack
0.05s
Decay
0.15s
Sustain
70%
Release
0.30s
🎹 Hold to Trigger (or press Space)
Frequency Sweep / Scan
Enable Sweep
Start
End
Duration
3.0s
Curve
Exponential
Linear
Mode
Ping-pong
Loop
Once
Export MP3
Duration
5.0s
Bitrate
128 kbps
192 kbps
320 kbps
⬇ Export current sound as MP3
Renders exactly what's currently configured (frequency, channel, waveform, FM, AM, envelope, sweep) offline, then encodes to MP3.
Presets
— choose preset —
💾 Save current
🗑 Delete