• 🎛️ Signal Generator Studio

    Generate test tones, noise, sweeps, bursts, impulses, and clicks directly in your browser for testing speakers, headphones, microphones, studio monitors, audio interfaces, and other audio equipment.

    15%
    Quick Test Presets
    Ready — Select a signal and press Start
    Low Signal Activity High
    Signal Sine
    Frequency 1,000 Hz
    Period 1.000 ms
    💡 Tip: Start at a very low output level when testing headphones, speakers, studio monitors, or subwoofers. Increase the level gradually. Low-frequency signals can put significant stress on speakers when played loudly.
    This generator uses your browser's Web Audio API. Actual output level depends on your computer, operating system, audio interface, amplifier, headphones, speakers, and other equipment. The impulse test creates a very short broadband click, while sweeps and noise signals are useful for different types of frequency-response and audio-system testing.

  • A Signal Generator Studio can help musicians, producers, recording engineers, audio technicians, and home-studio users generate a wide variety of test signals directly in their browser. It can be used for testing speakers, subwoofers, headphones, studio monitors, microphones, audio interfaces, stereo channels, and frequency response.

    The studio includes traditional test tones such as sine, square, triangle, and sawtooth waves, along with white noise, pink noise, and brown noise. It also includes frequency sweeps, tone bursts, and impulse/click tests for more specialized audio testing.

    White noise contains energy across the audible frequency spectrum and can be useful for general noise and system testing. Pink noise has more energy toward the lower frequencies and is commonly used for speaker, room, and audio-system testing. Brown noise emphasizes lower frequencies even more and can be useful for low-frequency testing.

    The frequency sweep lets you gradually move from one frequency to another, making it useful for identifying resonances, frequency-response problems, rattles, buzzing, or unusual behavior in speakers and rooms. Tone bursts generate short sections of a tone separated by silence, while impulse/click tests create extremely short broadband signals that can be useful for timing and transient-response experiments.

    The left, right, and stereo output options can also help identify stereo routing problems, channel differences, and speaker connectivity issues.

    Tip: Always begin with the volume very low. Sweep tests and especially low-frequency tones can expose problems that aren't obvious with music, but they can also put significant stress on speakers and subwoofers if played too loudly. Increase the level gradually and stop if you hear distortion, rattling, buzzing, or other unusual sounds.

    Important: This browser-based tool is a signal generator, not a calibrated measurement system. The actual level and frequency response you hear depend on your computer, browser, audio interface, amplifier, headphones, speakers, room, and other equipment. For professional acoustic measurements, use appropriate calibrated measurement hardware and software.