InstrumentPreset

Struct

Source: AudioMusicTypes.h

Description

Defines instrument characteristics for playback.

For melodic instruments (duty > 0):

• defaultOctave: the base octave for notes
• duty: duty cycle for PULSE wave (e.g., 0.5, 0.125)

For percussion instruments (duty == 0):

• defaultOctave: drum type selector (1=Kick, 2=Snare, 3+=Hi-HAT)
• defaultDuration: fixed duration for each hit (0.0 = use note.duration)
• noisePeriod: LFSR period for noise channel (0 = calc from frequency, >0 = direct period)

Methods

inline float instrumentToFrequency(const InstrumentPreset& preset, Note /*note*/, uint8_t /*octave*/)

Parameters:

• preset: The instrument preset.
• note: The note (ignored for percussion).
• octave: The octave (ignored for percussion).

Returns: Frequency in Hz.