haskell-synthesizer-0.1.0.0

Safe Haskell	Safe-Inferred
Language	Haskell2010

Synthesizer.Modifiers.Envelopes

Synopsis

type Step = Double
type AttackLength = Double
type DecayLength = Double
type SustainLevel = Double
type ReleaseLength = Double
type TotalLength = Length
data Envelope = Envelope {
- attackLength :: AttackLength
- decayLength :: DecayLength
- sustainLevel :: SustainLevel
- releaseLength :: ReleaseLength
}
applyEnvelope :: Envelope -> SoundEvent -> SoundEvent
type SamplingRateConverted = Double
getAttackSteps :: AttackLength -> SamplingRateConverted -> [Step]
getDecaySteps :: DecayLength -> SustainLevel -> SamplingRateConverted -> [Step]
getSustainSteps :: SustainLevel -> TotalLength -> AttackLength -> DecayLength -> SamplingRateConverted -> [Step]
getReleaseSteps :: SustainLevel -> ReleaseLength -> SamplingRateConverted -> [Step]

Documentation

type Step = Double Source #

type AttackLength = Double Source #

type DecayLength = Double Source #

type SustainLevel = Double Source #

type ReleaseLength = Double Source #

type TotalLength = Length Source #

data Envelope Source #

Constructors

Fields

attackLength :: AttackLength
The time it takes a note to rise to its highest volume (in seconds)
decayLength :: DecayLength
The time it takes a note to falls to the sustain level (in seconds)
sustainLevel :: SustainLevel
The percentage of the maximum volume which the decay length will fall to (between 0 and 1)
releaseLength :: ReleaseLength
The time it takes a note to completely fall from the sustain level to silent (in seconds)

Instances

Instances details

Show Envelope Source #
Instance details Defined in Synthesizer.Modifiers.Envelopes Methods showsPrec :: Int -> Envelope -> ShowS # show :: Envelope -> String # showList :: [Envelope] -> ShowS #

applyEnvelope :: Envelope -> SoundEvent -> SoundEvent Source #

Apply an envelope to a SoundEvent. This creates a new SoundEvent with changed properties

type SamplingRateConverted = Double Source #

getAttackSteps :: AttackLength -> SamplingRateConverted -> [Step] Source #

Calculate the attack steps based on attack length

getDecaySteps :: DecayLength -> SustainLevel -> SamplingRateConverted -> [Step] Source #

Calculate the decay steps based on decay length

getSustainSteps :: SustainLevel -> TotalLength -> AttackLength -> DecayLength -> SamplingRateConverted -> [Step] Source #

Calculate the sustain steps based on sustain level

getReleaseSteps :: SustainLevel -> ReleaseLength -> SamplingRateConverted -> [Step] Source #

Calculate the release steps based on the release length and the sustain level