Explore and test audio frequencies with a free online tone generator made for practical sound checks. Generate tones between 20 Hz and 20 kHz and choose from sine, square, sawtooth, or triangle waveforms. The tool also supports stereo, left-channel, and right-channel playback, along with a 15-second logarithmic sweep. Use it for music tuning, headphone testing, speaker checks, room ac... https://aitoolspros.com/tools/audio/tone-generator/