# Risset Drum

From Audacity Development Manual

Risset Drum produces a sound based on work by the composer of electronic music, Jean Claude Risset. It consists of band-pass filtered noise, an enharmonic tone and a relatively strong sine wave at the fundamental.

  Accessed by: Generate > Risset Drum...

## Frequency (Hz)

The pitch of the drum note expressed in Hz. This tunes the "fundamental frequency" or "base note" of the sound.

## Decay (seconds)

Determines the length of the drum sound. Longer sounds can sound similar to a gong.

## Center frequency of noise (Hz)

The center frequency of the band-pass filter that is applied to the noise. Higher frequencies can sound as if small cymbals are vibrating with the drum stroke.

## Width of noise band (Hz)

The minimum width of the band-pass filter that is applied to the noise. Higher values can increase the impression of a gong sound.

## Amount of noise in mix (percent)

The amount of noise in the drum sound as a percentage of the mix. Values near maximum can sound like a gun shot if other controls are left at default values.

## Amplitude (0-1)

The peak amplitude of the generated sound.

## Buttons

Clicking on the command buttons give the following results:

- Manage gives a dropdown menu enabling you to manage presets for the tool and to see some detail about the tool. For details see Manage presets
- Preview plays a short preview of what the audio would sound like if the effect is applied with the current settings, without making actual changes to the audio. The length of preview is determined by your setting in Edit > Preferences > Playback, the default setting is 6 seconds.
- Debug applies the effect to the selected audio with the current effect settings, but unlike OK the effect runs in debug mode. This is primarily of use when writing or editing Nyquist plug-ins.
  - In addition to the normal plug-in behavior, a "debug window" opens to display error messages, normally the debug window will be empty
- OK applies the effect to the selected audio with the current effect settings and closes the dialog
- Cancel aborts the effect and leaves the audio unchanged, closing the dialog
- brings you to the appropriate page in the Manual, this page

## Links

|< Index of Effects, Generators and Analyzers

|< Generate Menu