audio

package
v0.3.2 Latest Latest
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 Go to latest Published: Aug 31, 2023 License: MIT Imports: 1 Imported by: 0

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Index

Constants

View Source 
const (
	AudioContextStateSuspended = AudioContextState("suspended")
	AudioContextStateRunning   = AudioContextState("running")
	AudioContextStateClosed    = AudioContextState("closed")
)
View Source 
const (
	ChannelsModeMax        = ChannelsMode("max")
	ChannelsModeClampedMax = ChannelsMode("clamped-max")
	ChannelsModeExplicit   = ChannelsMode("explicit")
)
View Source 
const (
	FilterTypeLowPass   = FilterType("lowpass")
	FilterTypeHighPass  = FilterType("highpass")
	FilterTypeBandPass  = FilterType("bandpass")
	FilterTypeLowShelf  = FilterType("lowshelf")
	FilterTypeHighShelf = FilterType("highshelf")
	FilterTypePeaking   = FilterType("peaking")
	FilterTypeNotch     = FilterType("notch")
	FilterTypeAllPass   = FilterType("allpass")
)
View Source 
const (
	ShapeSine     = Shape("sine")
	ShapeSquare   = Shape("square")
	ShapeSawTooth = Shape("sawtooth")
	ShapeTriangle = Shape("triangle")
	ShapeCustom   = Shape("custom")
)

Variables

This section is empty.

Functions

This section is empty.

Types

type AnalyserNode 

type AnalyserNode struct {
	AudioNode
}

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode

func (AnalyserNode) FFTSize 

func (analyser AnalyserNode) FFTSize() int

FFTSize represents the window size in samples that is used when performing a Fast Fourier Transform (FFT) to get frequency domain data. https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/fftSize

func (AnalyserNode) FrequencyBinCount 

func (analyser AnalyserNode) FrequencyBinCount() int

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/frequencyBinCount

func (AnalyserNode) FrequencyData 

func (analyser AnalyserNode) FrequencyData() FrequencyDataBytes

func (AnalyserNode) MaxDecibels 

func (analyser AnalyserNode) MaxDecibels() int

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/msxDecibels

func (AnalyserNode) MinDecibels 

func (analyser AnalyserNode) MinDecibels() int

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/minDecibels

func (AnalyserNode) SetFFTSize 

func (analyser AnalyserNode) SetFFTSize(value int)

FFTSize represents the window size in samples that is used when performing a Fast Fourier Transform (FFT) to get frequency domain data. https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/fftSize

func (AnalyserNode) SetMaxDecibels 

func (analyser AnalyserNode) SetMaxDecibels(value int)

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/maxDecibels

func (AnalyserNode) SetMinDecibels 

func (analyser AnalyserNode) SetMinDecibels(value int)

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/minDecibels

func (AnalyserNode) SetSmoothingTimeConstant 

func (analyser AnalyserNode) SetSmoothingTimeConstant(value float64)

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/smoothingTimeConstant

func (AnalyserNode) SmoothingTimeConstant 

func (analyser AnalyserNode) SmoothingTimeConstant() float64

https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode/smoothingTimeConstant

func (AnalyserNode) TimeDomain 

func (analyser AnalyserNode) TimeDomain() TimeDomainBytes

type AtTime 

type AtTime struct {
	// contains filtered or unexported fields
}

AtTime is a namespace of operations on AudioParam that are scheduled at specified time. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#Methods

func (AtTime) Cancel 

func (param AtTime) Cancel(values []float64, duration float64)

Cancel cancels all scheduled future changes to the AudioParam. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/cancelScheduledValues

func (AtTime) CancelAndHold 

func (param AtTime) CancelAndHold()

CancelAndHold cancels all scheduled future changes to the AudioParam but holds its value at a given time until further changes are made using other methods. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/cancelAndHoldAtTime

func (AtTime) ExponentialRampTo 

func (param AtTime) ExponentialRampTo(value float64)

ExponentialRampTo schedules a gradual exponential change in the value of the AudioParam. The change starts at the time specified for the previous event, follows an exponential ramp to the new value given in the value parameter, and reaches the new value at the time given in the `time` parameter. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/exponentialRampToValueAtTime

func (AtTime) LinearRampTo 

func (param AtTime) LinearRampTo(value float64)

LinearRampTo schedules a gradual linear change in the value of the AudioParam. The change starts at the time specified for the previous event, follows a linear ramp to the new value given in the value parameter, and reaches the new value at the time given in the `time` parameter. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/linearRampToValueAtTime

func (AtTime) Set 

func (param AtTime) Set(value float64)

Set schedules an instant change to the AudioParam value at a precise time, as measured against AudioContext.CurrentTime. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/setValueAtTime

func (AtTime) SetCurve 

func (param AtTime) SetCurve(values []float64, duration float64)

SetCurve schedules the parameter's value to change following a curve defined by a list of values. The curve is a linear interpolation between the sequence of values defined in an array of floating-point values, which are scaled to fit into the given interval starting at `time` and a specific `duration`. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/setValueCurveAtTime

func (AtTime) SetTarget 

func (param AtTime) SetTarget(target, timeConstant float64)

SetTarget schedules the start of a gradual change to the AudioParam value. This is useful for decay or release portions of ADSR envelopes. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/setTargetAtTime

type AudioContext 

type AudioContext struct {
	js.Value
}

AudioContext represents an audio-processing graph built from audio modules linked together, each represented by an AudioNode. An audio context controls both the creation of the nodes it contains and the execution of the audio processing, or decoding. You need to create an AudioContext before you do anything else, as everything happens inside a context. https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext https://developer.mozilla.org/en-US/docs/Web/API/AudioContext

func (AudioContext) Analyser 

func (context AudioContext) Analyser() AnalyserNode

func (AudioContext) BiquadFilter 

func (context AudioContext) BiquadFilter() BiquadFilterNode

func (AudioContext) CurrentTime 

func (context AudioContext) CurrentTime() float64

Current time returns an ever-increasing hardware time in seconds used for scheduling. It starts at 0. https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/currentTime

func (AudioContext) Destination 

func (context AudioContext) Destination() DestinationNode

Destination is the final destination of all audio in the context. It often represents an actual audio-rendering device such as your device's speakers. https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/destination

func (AudioContext) Gain 

func (context AudioContext) Gain() GainNode

Gain creates a GainNode, which can be used to control the overall volume of the audio graph. https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/createGain https://developer.mozilla.org/en-US/docs/Web/API/GainNode

func (AudioContext) MediaStreamSource 

func (context AudioContext) MediaStreamSource(stream MediaStream) MediaStreamSourceNode

https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/createMediaStreamSource

func (AudioContext) Oscillator 

func (context AudioContext) Oscillator() OscillatorNode

https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/createOscillator https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode

func (AudioContext) Resume 

func (context AudioContext) Resume()

https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/resume

func (AudioContext) SampleRate 

func (context AudioContext) SampleRate() int

SampleRate returns the sample rate (in samples per second) used by all nodes in this context. https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/sampleRate

func (AudioContext) State 

func (context AudioContext) State() AudioContextState

type AudioContextState 

type AudioContextState string

type AudioNode 

type AudioNode struct {
	js.Value
}

https://developer.mozilla.org/en-US/docs/Web/API/AudioNode

func (AudioNode) Channels 

func (node AudioNode) Channels() int

func (AudioNode) ChannelsInterpretation 

func (node AudioNode) ChannelsInterpretation() ChannelsMode

func (AudioNode) ChannelsMode 

func (node AudioNode) ChannelsMode() ChannelsMode

func (AudioNode) Connect 

func (node AudioNode) Connect(destination AudioNode, inputIndex int, outputIndex int)

func (AudioNode) Context 

func (node AudioNode) Context() AudioContext

Context returns the associated AudioContext, that is the object representing the processing graph the node is participating in. https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/context

func (AudioNode) Disconnect 

func (node AudioNode) Disconnect(destination AudioNode)

func (AudioNode) DisconnectAll 

func (node AudioNode) DisconnectAll()

func (AudioNode) Inputs 

func (node AudioNode) Inputs() int

Inputs returns the number of inputs feeding the node. https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/numberOfInputs

func (AudioNode) Outputs 

func (node AudioNode) Outputs() int

Outputs returns the number of outputs coming out of the node. https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/numberOfOutputs

type AudioParam 

type AudioParam struct {
	// contains filtered or unexported fields
}

https://developer.mozilla.org/en-US/docs/Web/API/AudioParam

func (AudioParam) AtTime 

func (param AudioParam) AtTime(time float64) AtTime

AtTime returns a namespace of operations on AudioParam that are scheduled at specified time. https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#Methods

func (AudioParam) Default 

func (param AudioParam) Default() float64

func (AudioParam) Get 

func (param AudioParam) Get() float64

func (AudioParam) Max 

func (param AudioParam) Max() float64

func (AudioParam) Min 

func (param AudioParam) Min() float64

func (AudioParam) Set 

func (param AudioParam) Set(value float64)

type BiquadFilterNode 

type BiquadFilterNode struct {
	AudioNode
}

https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode

func (BiquadFilterNode) DeTune 

func (node BiquadFilterNode) DeTune() AudioParam

https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode/detune

func (BiquadFilterNode) FilterType 

func (node BiquadFilterNode) FilterType() FilterType

FilterType is kind of filtering algorithm the node is implementing https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode/type

func (BiquadFilterNode) Frequency 

func (node BiquadFilterNode) Frequency() AudioParam

https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode/frequency

func (BiquadFilterNode) Gain 

func (node BiquadFilterNode) Gain() AudioParam

https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode/gain

func (BiquadFilterNode) QFactor 

func (node BiquadFilterNode) QFactor() AudioParam

https://developer.mozilla.org/en-US/docs/Web/API/BiquadFilterNode/Q

type Channels 

type Channels struct {
	// contains filtered or unexported fields
}

func (Channels) Count 

func (channels Channels) Count() int

https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/channelCount

func (Channels) Discrete 

func (channels Channels) Discrete() bool

https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/channelInterpretation

func (Channels) Mode 

func (channels Channels) Mode() ChannelsMode

https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/channelCountMode

func (Channels) Speakers 

func (channels Channels) Speakers() bool

https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/channelInterpretation

type ChannelsMode 

type ChannelsMode string

type DestinationNode 

type DestinationNode struct {
	AudioNode
}

func (DestinationNode) MaxChannels 

func (node DestinationNode) MaxChannels() int

type FilterType 

type FilterType string

type FrequencyDataBytes 

type FrequencyDataBytes struct {
	Size int    // Size of the data array
	Data []byte // where to copy data from JS into Go
	// contains filtered or unexported fields
}

func (*FrequencyDataBytes) Update 

func (freq *FrequencyDataBytes) Update()

Update reads the current frequency data into `Data` attribute. The frequency data is composed of integers on a scale from 0 to 255.

type GainNode 

type GainNode struct {
	AudioNode
}

GainNode represents a change in volume. It is an AudioNode audio-processing module that causes a given gain to be applied to the input data before its propagation to the output. A GainNode always has exactly one input and one output, both with the same number of channels. https://developer.mozilla.org/en-US/docs/Web/API/GainNode

func (GainNode) Gain 

func (node GainNode) Gain() AudioParam

type MediaStream 

type MediaStream struct {
	js.Value
}

func (MediaStream) Active 

func (stream MediaStream) Active() bool

https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/active

func (MediaStream) Clone 

func (stream MediaStream) Clone() MediaStream

https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/clone

func (MediaStream) ID 

func (stream MediaStream) ID() string

https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/id

func (MediaStream) JSValue added in v0.3.0 

func (stream MediaStream) JSValue() js.Value

Casts audio.MediaStream to js.Value

type MediaStreamSourceNode 

type MediaStreamSourceNode struct {
	AudioNode
}

https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamAudioSourceNode

func (MediaStreamSourceNode) Stream 

func (node MediaStreamSourceNode) Stream() MediaStream

type OscillatorNode 

type OscillatorNode struct {
	AudioNode
}

https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode

func (OscillatorNode) DeTune 

func (node OscillatorNode) DeTune() AudioParam

func (OscillatorNode) Frequency 

func (node OscillatorNode) Frequency() AudioParam

func (OscillatorNode) SetShape 

func (node OscillatorNode) SetShape(shape Shape)

func (OscillatorNode) Shape 

func (node OscillatorNode) Shape() Shape

Shape specifies the shape of waveform to play. https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode/type

func (OscillatorNode) Start 

func (node OscillatorNode) Start(when float64)

https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode/start

func (OscillatorNode) Stop 

func (node OscillatorNode) Stop(when float64)

https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode/stop

type Shape 

type Shape string

type TimeDomainBytes 

type TimeDomainBytes struct {
	Size int    // Size of the data array
	Data []byte // where to copy data from JS into Go
	// contains filtered or unexported fields
}

func (*TimeDomainBytes) Update 

func (domain *TimeDomainBytes) Update()

Update reads the current waveform or time-domain into `Data` attribute.

type Value 

type Value struct {
	js.Value
}

Value is an extended js.Value with more types support

func (Value) Call 

func (v Value) Call(method string, args ...any) Value

func (Value) Get 

func (v Value) Get(property string) Value

func (Value) New 

func (v Value) New(args ...any) Value

func (Value) OptionalString 

func (v Value) OptionalString() string

OptionalString returns empty string if Value is null

func (Value) Strings 

func (v Value) Strings() (items []string)

func (*Value) Values 

func (v *Value) Values() (items []Value)

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