Sine Tone Generator
An OfflineAudioContext oscillator generates a sine wave at the selected frequency with amplitude 0.2. The mono signal is rendered at 48 kHz and exported as a 16-bit PCM WAV.
About this sine tone generator
Generate a WAV sine tone at the selected frequency and duration.
How this tool works
An OfflineAudioContext oscillator generates a sine wave at the selected frequency with amplitude 0.2. The mono signal is rendered at 48 kHz and exported as a 16-bit PCM WAV.
- Set the visible controls to: Carrier frequency (Hz) = 440; Duration (seconds) = 3
- Click “Process locally”.
- Download the result and inspect: czoa-audio-tone-generator.wav — PCM16; 48000 Hz; 1 channel; 144000 frames; 440 Hz
Worked example
Scenario: Set the visible controls to: Carrier frequency (Hz) = 440; Duration (seconds) = 3 Click “Process locally”. Download the result and inspect: czoa-audio-tone-generator.wav — PCM16; 48000 Hz; 1 channel; 144000 frames; 440 Hz
Sample input:
Illustrative output:
Limits and verification
Frequency must be 20–20000 Hz and duration 0.2–30 seconds. Only a sine waveform is exposed. Digital amplitude does not specify speaker sound pressure; use a comfortable playback volume.
Examples demonstrate an expected workflow; they do not prove every input or every branch of an external specification. Check important results with an independent source before using them for money, security, compliance, safety, or irreversible file changes.
Browser processing boundary
Tool input is processed by code running in the browser and is not intentionally sent to a CZOA processing API. The page can still request ordinary site assets, analytics, or advertising when those services are enabled. Browser extensions and managed-device software remain outside this tool's control.
Relevant references
These references govern or help explain the format, protocol, or calculation used here. Listing a reference does not claim certification or complete implementation of every optional feature.
- W3C Web Audio API 1.0 — browser decoding and offline rendering
- Microsoft RIFF/WAVE PCM and WAVEFORMATEXTENSIBLE
Content owner: CZOA Tools · Last reviewed: 2026-09-15 · Review methodology
How to use it
- Set the visible controls to: Carrier frequency (Hz) = 440; Duration (seconds) = 3
- Click “Process locally”.
- Download the result and inspect: czoa-audio-tone-generator.wav — PCM16; 48000 Hz; 1 channel; 144000 frames; 440 Hz
Frequently asked questions
How does Sine Tone Generator process the signal or file?+
An OfflineAudioContext oscillator generates a sine wave at the selected frequency with amplitude 0.2. The mono signal is rendered at 48 kHz and exported as a 16-bit PCM WAV.
How can I reproduce the Sine Tone Generator example?+
Set the visible controls to: Carrier frequency (Hz) = 440; Duration (seconds) = 3 Click “Process locally”. Download the result and inspect: czoa-audio-tone-generator.wav — PCM16; 48000 Hz; 1 channel; 144000 frames; 440 Hz
What limits apply to Sine Tone Generator?+
Frequency must be 20–20000 Hz and duration 0.2–30 seconds. Only a sine waveform is exposed. Digital amplitude does not specify speaker sound pressure; use a comfortable playback volume.
What does browser-isolation evidence establish for Tone WAV Generator?+
Network requests observed during the example contained no selected-audio payload while the fixture rendered a three-second 440 Hz WAV and FFmpeg measured the download. It establishes the tested browser value path only, not an absolute offline or no-network promise for page assets, extensions, or other environments.