ComingUp
Sep 13, 2026
Hardware & IoT
audio-testing
decibel-meter
headphones
speakers
tone-generator
Gallery
About
SoundTest is a suite of free, in-browser audio tools. Test your left and right speakers and headphones, run a frequency sweep, generate any tone or DTMF dial tones, detect the musical note from your microphone, and measure ambient sound level in decibels. Everything runs client-side with the Web Audio API, nothing is uploaded, and there is no sign-up.
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