channels

package
v0.0.0-...-486f928 Latest Latest
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 Go to latest Published: Apr 14, 2022 License: MIT Imports: 7 Imported by: 1

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ParseDuration 

func ParseDuration(d interface{}, bpm float64) (float64, error)

Types

type Channel 

type Channel interface {
	NoteOn(note int, velocity float64)
	NoteOff(note int)
	SetPitchbend(pitchbendFactor float64)
	SetFX(fx FX, value float64)
	SetGrainOption(opt GrainOption, value interface{})
	SetInstrument(func() generators.Generator)
	GetSamples(cfg *audio.AudioConfig, n int) []float64
}

type ChannelDef 

type ChannelDef struct {
	Channel        int                           `json:"channel,omitempty" yaml:"channel,omitempty"`
	Name           string                        `json:"name,omitempty" yaml:"name,omitempty"`
	Instrument     int                           `json:"instrument,omitempty" yaml:"instrument,omitempty"`
	Bank           int                           `json:"bank,omitempty" yaml:"bank,omitempty"`
	Reverb         int                           `json:"reverb,omitempty" yaml:"reverb,omitempty"`
	ReverbTime     interface{}                   `json:"reverb_time,omitempty" yaml:"reverb_time,omitempty"`
	ReverbFeedback float64                       `json:"reverb_feedback,omitempty" yaml:"reverb_feedback,omitempty"`
	Tremelo        int                           `json:"tremelo,omitempty" yaml:"tremelo,omitempty"`
	Volume         int                           `json:"volume,omitempty" yaml:"volume,omitempty"`
	Panning        int                           `json:"panning,omitempty" yaml:"panning,omitempty"`
	LPF_Cutoff     int                           `json:"lpf_cutoff,omitempty" yaml:"lpf_cutoff,omitempty"`
	HPF_Cutoff     int                           `json:"hpf_cutoff,omitempty" yaml:"hpf_cutoff,omitempty"`
	Grain          *instruments.GrainsOptionsDef `json:"grain,omitempty" yaml:"grain,omitempty"`
	Generator      *instruments.GeneratorDef     `json:"generator,omitempty" yaml:"generator,omitempty"`
}

type ChannelFX 

type ChannelFX struct {
	Tremelo        float64 // supported
	Reverb         float64 // fake supported (through delayfilter)
	ReverbTime     float64
	ReverbFeedback float64
	LPF_Cutoff     float64
	HPF_Cutoff     float64
	Chorus         float64 // not supported
	Phaser         float64 // not supported

	CachedFilter filters.Filter
	// contains filtered or unexported fields
}

func NewChannelFX 

func NewChannelFX() *ChannelFX

func (*ChannelFX) Filter 

func (f *ChannelFX) Filter() filters.Filter

func (*ChannelFX) Set 

func (f *ChannelFX) Set(fx FX, value float64)

type ChannelGrain 

type ChannelGrain struct {
	File           string
	GrainSize      float64
	BirthRate      float64
	Density        int
	Spread         float64
	Speed          float64
	RandomPosition float64
	Gain           float64
	Repeat         bool
	On             bool

	CachedGenerator generators.Generator
}

func NewChannelGrain 

func NewChannelGrain() *ChannelGrain

func (*ChannelGrain) Generator 

func (f *ChannelGrain) Generator(cfg *audio.AudioConfig) (generators.Generator, error)

func (*ChannelGrain) Set 

func (f *ChannelGrain) Set(opt GrainOption, value interface{})

type ChannelsDef 

type ChannelsDef struct {
	Channels []*ChannelDef `json:"channels" yaml:"channels"`
}

type FX 

type FX int
const (
	Reverb         FX = iota
	ReverbTime     FX = iota
	ReverbFeedback FX = iota
	Chorus         FX = iota
	Phaser         FX = iota
	Tremelo        FX = iota
	LPF_Cutoff     FX = iota
	HPF_Cutoff     FX = iota
)

type GrainOption 

type GrainOption int
const (
	GrainFile      GrainOption = iota
	GrainGain      GrainOption = iota
	GrainSize      GrainOption = iota
	GrainBirthRate GrainOption = iota
	GrainDensity   GrainOption = iota
	GrainSpread    GrainOption = iota
	GrainSpeed     GrainOption = iota
	GrainRepeat    GrainOption = iota
)

type MonophonicChannel 

type MonophonicChannel struct {
	Instrument generators.Generator
}

func NewMonophonicChannel 

func NewMonophonicChannel(g generators.Generator) *MonophonicChannel

func (*MonophonicChannel) GetSamples 

func (c *MonophonicChannel) GetSamples(cfg *audio.AudioConfig, n int) []float64

func (*MonophonicChannel) NoteOff 

func (c *MonophonicChannel) NoteOff(note int)

func (*MonophonicChannel) NoteOn 

func (c *MonophonicChannel) NoteOn(note int, velocity float64)

func (*MonophonicChannel) SetFX 

func (c *MonophonicChannel) SetFX(fx FX, value float64)

func (*MonophonicChannel) SetGrainOption 

func (c *MonophonicChannel) SetGrainOption(opt GrainOption, value interface{})

func (*MonophonicChannel) SetInstrument 

func (c *MonophonicChannel) SetInstrument(g func() generators.Generator)

func (*MonophonicChannel) SetPitchbend 

func (c *MonophonicChannel) SetPitchbend(pitchbendFactor float64)

type PercussionChannel 

type PercussionChannel struct {
	On          *sync.Map
	Instruments []generators.Generator
	FX          ChannelFX
}

func NewPercussionChannel 

func NewPercussionChannel() *PercussionChannel

func (*PercussionChannel) GetSamples 

func (c *PercussionChannel) GetSamples(cfg *audio.AudioConfig, n int) []float64

func (*PercussionChannel) LoadInstrumentsFromBank 

func (c *PercussionChannel) LoadInstrumentsFromBank(cfg *audio.AudioConfig)

func (*PercussionChannel) NoteOff 

func (c *PercussionChannel) NoteOff(note int)

func (*PercussionChannel) NoteOn 

func (c *PercussionChannel) NoteOn(note int, velocity float64)

func (*PercussionChannel) SetFX 

func (c *PercussionChannel) SetFX(fx FX, value float64)

func (*PercussionChannel) SetGrainOption 

func (c *PercussionChannel) SetGrainOption(opt GrainOption, value interface{})

func (*PercussionChannel) SetInstrument 

func (c *PercussionChannel) SetInstrument(g func() generators.Generator)

func (*PercussionChannel) SetPitchbend 

func (c *PercussionChannel) SetPitchbend(f float64)

type PolyphonicChannel 

type PolyphonicChannel struct {
	Instruments []generators.Generator
	On          *sync.Map
	FX          ChannelFX
	Grain       *ChannelGrain
}

func NewPolyphonicChannel 

func NewPolyphonicChannel() *PolyphonicChannel

func (*PolyphonicChannel) GetSamples 

func (c *PolyphonicChannel) GetSamples(cfg *audio.AudioConfig, n int) []float64

func (*PolyphonicChannel) NoteOff 

func (c *PolyphonicChannel) NoteOff(note int)

func (*PolyphonicChannel) NoteOn 

func (c *PolyphonicChannel) NoteOn(note int, velocity float64)

func (*PolyphonicChannel) SetFX 

func (c *PolyphonicChannel) SetFX(fx FX, value float64)

func (*PolyphonicChannel) SetGrainOption 

func (c *PolyphonicChannel) SetGrainOption(opt GrainOption, value interface{})

func (*PolyphonicChannel) SetInstrument 

func (c *PolyphonicChannel) SetInstrument(g func() generators.Generator)

func (*PolyphonicChannel) SetPitchbend 

func (c *PolyphonicChannel) SetPitchbend(pitchbendFactor float64)

Source Files

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