Perform quick audio‑system checks across your different setups. Use the controls below to run channel checks, sweeps, noise signals and single notes. A master volume slider lets you keep levels comfortable.
This test alternates a short tone between the left and right speaker. The right channel plays a perfect fifth above the left base tone so it’s easy to distinguish the two.
Plays a continuous tone that smoothly pans between the left and right channels. Use it to adjust balance controls.
Generates a sweeping sine tone across a specified frequency range. Logarithmic sweeps allocate equal time per octave and are useful for checking resonances and room modes.
Explore different types of noise to reveal frequency imbalances or to mask external sounds.
Start and stop steady tones at specific frequencies. Use the quick buttons or enter your own frequency below.
Click keys to toggle sustained notes. The two octaves around middle C use equal temperament tuning and a gentle triangle waveform.
Choose a base frequency and experiment with its natural harmonics. Adjust individual partial volumes to explore timbre and musical intervals.