Generate customizable tones for audio testing with this free online tool. Set any frequency within the supported 20 Hz to 20 kHz range, choose from sine, square, sawtooth and triangle waveforms, and adjust the volume. Stereo and individual left/right output options support channel testing, while the 15-second frequency sweep can help reveal resonance and response differences in speake... https://aitoolspros.com/tools/audio/tone-generator/