# Interface: SonificationInstrumentScheduledEventOptionsObject

## Highcharts. SonificationInstrumentScheduledEventOptionsObject

Options for a scheduled event for a SonificationInstrument

### Requires

- module:modules/sonification

### Members

#### frequency :number|undefined

  Note frequency in Hertz. Overrides note, if both are given.

  ##### Type:

  - number | undefined

#### highpassFreq :number|undefined

  Frequency of the highpass filter, in Hertz.

  ##### Type:

  - number | undefined

#### highpassResonance :number|undefined

  Resonance of the highpass filter, in dB. Can be negative for a dip, or positive for a bump.

  ##### Type:

  - number | undefined

#### lowpassFreq :number|undefined

  Frequency of the lowpass filter, in Hertz.

  ##### Type:

  - number | undefined

#### lowpassResonance :number|undefined

  Resonance of the lowpass filter, in dB. Can be negative for a dip, or positive for a bump.

  ##### Type:

  - number | undefined

#### note :number|string|undefined

  Number of semitones from c0, or a note string - such as "c4" or "F#6".

  ##### Type:

  - number | string | undefined

#### noteDuration :number|undefined

  Duration to play the note in milliseconds. If not given, the note keeps playing indefinitely

  ##### Type:

  - number | undefined

#### pan :number|undefined

  Stereo panning value, from -1 (left) to 1 (right).

  ##### Type:

  - number | undefined

#### tremoloDepth :number|undefined

  Depth/intensity of the tremolo effect - which is a periodic change in volume. From 0 to 1.

  ##### Type:

  - number | undefined

#### tremoloSpeed :number|undefined

  Speed of the tremolo effect, from 0 to 1.

  ##### Type:

  - number | undefined

#### volume :number|undefined

  Volume of the instrument, from 0 to 1. Can be set independent of the master/overall volume.

  ##### Type:

  - number | undefined