Generate noise.
- Type: Type of noise.
- Level: Amplitude of the signal.
- Offset: Offset the signal by a percentage of the amplitude.
- Mode: When set to Replace it will replace the existing content. When set to Mix it will add to the existing content. When set to Insert it will insert time before adding the new content.
- Length: (Only in Insert mode, otherwise defined by the size of the layer or the selection) Length of the silence.
