audioSettingsToneLevels
Feature / Setting:► Desktop: Settings > General >
Error Sounds (Volume)
Other Sounds (Volume)
Push To Talk Sounds (Volume)
► Mobile: Audio >
Error Sounds > Tone volume
Other Sounds > Tone volume
Push To Talk Sounds > Tone volume

Values:
► error: Range from 0 to 1 using decimals: 0, 0.1, 0.2, 0.3 etc (Number)
► other: Range from 0 to 1 using decimals: 0, 0.1, 0.2, 0.3 etc (Number)
► ptt: Range from 0 to 1 using decimals: 0, 0.1, 0.2, 0.3 etc (Number)
Example:
"audioSettingsToneLevels": {
"error": 0.9,
"other": 0.1,
"ptt": 0.75
}