Tone Meter plays a tone and displays a solid colour based on the peak amplitude of the waveform. This visual is designed for visually impared users to provide an auditory amplitude meter. Shared playback quality must be selected to allow the visual to generate tones.
The properties include settings for four tiered tones. Each tone has a different trigger level, frequency, waveform, and colour. The Level value sets the upper limit to trigger the tone. The tone is used only if the peak amplitude is below or equal to the given level. If the peak is above that level, then a tone with a higher level is used. Each level must be higher than the previous level, so the trigger for level 2 must be greater than the trigger for level 1, etc.
Tones are played at a fixed interval. Tone interval changes the time between tones. By default a tone sounds once a second. Duration sets how long the tone plays. Volume changes the volume of the tone.
Sound tone only when Scroll Lock key is on provides a quick way to turn on and off the tone by using the Scroll Lock key on the keyboard as a toggle switch.