Sine Wave

note: 52 amp: 1 pan: 0 attack: 0
decay: 0 sustain: 0 release: 1 attack_level: 1
decay_level: sustain_level sustain_level: 1 env_curve: 2

use_synth :beep

A simple pure sine wave. The sine wave is the simplest, purest sound there is and is the fundamental building block of all noise. The mathematician Fourier demonstrated that any sound could be built out of a number of sine waves (the more complex the sound, the more sine waves needed). Have a play combining a number of sine waves to design your own sounds!

Introduced in v2.0

Options

note:

Note to play. Either a MIDI number or a symbol representing a note. For example: 30, 52, :C, :C2, :Eb4, or :Ds3

Default: 52
Must be zero or greater
May be changed whilst playing
Has slide options to shape changes

amp:

The amplitude of the sound. Typically a value between 0 and 1. Higher amplitudes may be used, but won’t make the sound louder, they will just reduce the quality of all the sounds currently being played (due to compression.)

Default: 1
Must be zero or greater
May be changed whilst playing
Has slide options to shape changes

pan:

Position of sound in stereo. With headphones on, this means how much of the sound is in the left ear, and how much is in the right ear. With a value of -1, the sound is completely in the left ear, a value of 0 puts the sound equally in both ears and a value of 1 puts the sound in the right ear. Values in between -1 and 1 move the sound accordingly.

Default: 0
Must be a value between -1 and 1 inclusively
May be changed whilst playing
Has slide options to shape changes

attack:

Amount of time (in beats) for sound to reach full amplitude (attack_level). A short attack (i.e. 0.01) makes the initial part of the sound very percussive like a sharp tap. A longer attack (i.e 1) fades the sound in gently. Full length of sound is attack + decay + sustain + release.

Default: 0
Must be zero or greater
Can not be changed once set
Scaled with current BPM value

decay:

Amount of time (in beats) for the sound to move from full amplitude (attack_level) to the sustain amplitude (sustain_level).

Default: 0
Must be zero or greater
Can not be changed once set
Scaled with current BPM value

sustain:

Amount of time (in beats) for sound to remain at sustain level amplitude. Longer sustain values result in longer sounds. Full length of sound is attack + decay + sustain + release.

Default: 0
Must be zero or greater
Can not be changed once set
Scaled with current BPM value

release:

Amount of time (in beats) for sound to move from sustain level amplitude to silent. A short release (i.e. 0.01) makes the final part of the sound very percussive (potentially resulting in a click). A longer release (i.e 1) fades the sound out gently. Full length of sound is attack + decay + sustain + release.

Default: 1
Must be zero or greater
Can not be changed once set
Scaled with current BPM value

attack_level:

Amplitude level reached after attack phase and immediately before decay phase

Default: 1
Must be zero or greater
Can not be changed once set

decay_level:

Amplitude level reached after decay phase and immediately before sustain phase. Defaults to sustain_level unless explicitly set

Default: sustain_level
Must be zero or greater
Can not be changed once set

sustain_level:

Amplitude level reached after decay phase and immediately before release phase.

Default: 1
Must be zero or greater
Can not be changed once set

env_curve:

Select the shape of the curve between levels in the envelope. 1=linear, 2=exponential, 3=sine, 4=welch, 6=squared, 7=cubed

Default: 2
Must be one of the following values: [1, 2, 3, 4, 6, 7]
Can not be changed once set