struct PF::Envelope::Stage

• PF::Envelope::Stage
• Struct
• Value
• Object

Overview

An Envelope::Stage is a slice of time within an enveleope (Either A,D,S, or R)

Defined in:

audio/envelope.cr

Constructors

• .new(duration : Float64, initial : Float64, level : Float64, shape : Float64, Float64, Float64, Float64 -> Float64)
• .new(duration : Float64, initial : Float64 = 1.0, level : Float64 = 1.0)
• .new(duration : Float64, initial : Float64 = 1.0, level : Float64 = 1.0, &shape : Float64, Float64, Float64, Float64 -> Float64)

Class Method Summary

• .lerp

  Linear interpolation function

• .wavy_lerp(hertz : Float64 = 50, amount : Float64 = 0.7)

  Pulsating linear interpolation

Instance Method Summary

• #amplitude(time : Float64)

  Get the amplitude for this stage for time time should be relative to the start of this stage

• #duration : Float64

  The length of time in seconds that this stage lasts

• #duration=(duration : Float64)

  The length of time in seconds that this stage lasts

• #initial : Float64

  The initial level of the amplitude

• #initial=(initial : Float64)

  The initial level of the amplitude

• #level : Float64

  The finial level of the amplitude

• #level=(level : Float64)

  The finial level of the amplitude

• #shape : Float64, Float64, Float64, Float64 -> Float64

  This function determines the shape of this stage (defaults to linear) params: time, duration, initial, level

• #shape=(shape : Float64, Float64, Float64, Float64 -> Float64)

  This function determines the shape of this stage (defaults to linear) params: time, duration, initial, level

Constructor Detail

Class Method Detail

Instance Method Detail