AnalyserNode#

class AnalyserNode extends AudioNode

Annotations: @Native.new("AnalyserNode,RealtimeAnalyserNode")

Inheritance

Object → EventTarget → AudioNode → AnalyserNode

Constructors#

AnalyserNode() factory#

factory AnalyserNode(BaseAudioContext context, [ Map<dynamic, dynamic>? options])

Implementation

factory AnalyserNode(BaseAudioContext context, [Map? options]) {
  if (options != null) {
    var options_1 = convertDartToNative_Dictionary(options);
    return AnalyserNode._create_1(context, options_1);
  }
  return AnalyserNode._create_2(context);
}

Properties#

channelCount read / write inherited#

int? get channelCount

Inherited from AudioNode.

Implementation

int? get channelCount native;

set channelCount(int? value) native;

channelCountMode read / write inherited#

String? get channelCountMode

Inherited from AudioNode.

Implementation

String? get channelCountMode native;

set channelCountMode(String? value) native;

channelInterpretation read / write inherited#

String? get channelInterpretation

Inherited from AudioNode.

Implementation

String? get channelInterpretation native;

set channelInterpretation(String? value) native;

context no setter inherited#

BaseAudioContext? get context

Inherited from AudioNode.

Implementation

BaseAudioContext? get context native;

fftSize read / write#

int? get fftSize

Implementation

int? get fftSize native;

set fftSize(int? value) native;

frequencyBinCount no setter#

int? get frequencyBinCount

Implementation

int? get frequencyBinCount native;

hashCode no setter inherited#

int get hashCode

Inherited from Interceptor.

Implementation

int get hashCode => Primitives.objectHashCode(this);

maxDecibels read / write#

num? get maxDecibels

Implementation

num? get maxDecibels native;

set maxDecibels(num? value) native;

minDecibels read / write#

num? get minDecibels

Implementation

num? get minDecibels native;

set minDecibels(num? value) native;

numberOfInputs no setter inherited#

int? get numberOfInputs

Inherited from AudioNode.

Implementation

int? get numberOfInputs native;

numberOfOutputs no setter inherited#

int? get numberOfOutputs

Inherited from AudioNode.

Implementation

int? get numberOfOutputs native;

on no setter inherited#

Events get on

This is an ease-of-use accessor for event streams which should only be used when an explicit accessor is not available.

Inherited from EventTarget.

Implementation

Events get on => new Events(this);

runtimeType no setter inherited#

Type get runtimeType

Inherited from Interceptor.

Implementation

Type get runtimeType =>
    getRuntimeTypeOfInterceptorNotArray(getInterceptor(this), this);

smoothingTimeConstant read / write#

num? get smoothingTimeConstant

Implementation

num? get smoothingTimeConstant native;

set smoothingTimeConstant(num? value) native;

Methods#

addEventListener() inherited#

void addEventListener( String type, dynamic Function(Event event)? listener, [ bool? useCapture, ]);

Inherited from EventTarget.

Implementation

void addEventListener(
  String type,
  EventListener? listener, [
  bool? useCapture,
]) {
  &#47;&#47; TODO(leafp): This check is avoid a bug in our dispatch code when
  &#47;&#47; listener is null.  The browser treats this call as a no-op in this
  &#47;&#47; case, so it's fine to short-circuit it, but we should not have to.
  if (listener != null) {
    _addEventListener(type, listener, useCapture);
  }
}

connectNode() inherited#

void connectNode(AudioNode destination, [ int output = 0, int input = 0])

Inherited from AudioNode.

Implementation

void connectNode(AudioNode destination, [int output = 0, int input = 0]) {
  _connect(destination, output, input);
}

connectParam() inherited#

void connectParam(AudioParam destination, [ int output = 0])

Inherited from AudioNode.

Implementation

void connectParam(AudioParam destination, [int output = 0]) {
  _connect(destination, output);
}

disconnect() inherited#

void disconnect([ dynamic destination_OR_output, int? output, int? input])

Inherited from AudioNode.

Implementation

void disconnect([destination_OR_output, int? output, int? input]) native;

dispatchEvent() inherited#

bool dispatchEvent(Event event)

Inherited from EventTarget.

Implementation

bool dispatchEvent(Event event) native;

getByteFrequencyData()#

void getByteFrequencyData(Uint8List array)

Implementation

void getByteFrequencyData(Uint8List array) native;

getByteTimeDomainData()#

void getByteTimeDomainData(Uint8List array)

Implementation

void getByteTimeDomainData(Uint8List array) native;

getFloatFrequencyData()#

void getFloatFrequencyData(Float32List array)

Implementation

void getFloatFrequencyData(Float32List array) native;

getFloatTimeDomainData()#

void getFloatTimeDomainData(Float32List array)

Implementation

void getFloatTimeDomainData(Float32List array) native;

noSuchMethod() inherited#

dynamic noSuchMethod(Invocation invocation)

Invoked when a nonexistent method or property is accessed.

A dynamic member invocation can attempt to call a member which doesn't exist on the receiving object. Example:

dynamic object = 1;
object.add(42); // Statically allowed, run-time error

This invalid code will invoke the noSuchMethod method of the integer 1 with an Invocation representing the .add(42) call and arguments (which then throws).

Classes can override noSuchMethod to provide custom behavior for such invalid dynamic invocations.

A class with a non-default noSuchMethod invocation can also omit implementations for members of its interface. Example:

class MockList<T> implements List<T> {
  noSuchMethod(Invocation invocation) {
    log(invocation);
    super.noSuchMethod(invocation); // Will throw.
  }
}
void main() {
  MockList().add(42);
}

This code has no compile-time warnings or errors even though the MockList class has no concrete implementation of any of the List interface methods. Calls to List methods are forwarded to noSuchMethod, so this code will log an invocation similar to Invocation.method(#add, [42]) and then throw.

If a value is returned from noSuchMethod, it becomes the result of the original invocation. If the value is not of a type that can be returned by the original invocation, a type error occurs at the invocation.

The default behavior is to throw a NoSuchMethodError.

Inherited from Interceptor.

Implementation

dynamic noSuchMethod(Invocation invocation) {
  throw NoSuchMethodError.withInvocation(this, invocation);
}

removeEventListener() inherited#

void removeEventListener( String type, dynamic Function(Event event)? listener, [ bool? useCapture, ]);

Inherited from EventTarget.

Implementation

void removeEventListener(
  String type,
  EventListener? listener, [
  bool? useCapture,
]) {
  &#47;&#47; TODO(leafp): This check is avoid a bug in our dispatch code when
  &#47;&#47; listener is null.  The browser treats this call as a no-op in this
  &#47;&#47; case, so it's fine to short-circuit it, but we should not have to.
  if (listener != null) {
    _removeEventListener(type, listener, useCapture);
  }
}

toString() inherited#

String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Inherited from Interceptor.

Implementation

String toString() => Primitives.objectToHumanReadableString(this);

Operators#

operator ==() inherited#

bool operator ==(Object other)

The equality operator.

The default behavior for all Objects is to return true if and only if this object and other are the same object.

Override this method to specify a different equality relation on a class. The overriding method must still be an equivalence relation. That is, it must be:

Total: It must return a boolean for all arguments. It should never throw.
Reflexive: For all objects o, o == o must be true.
Symmetric: For all objects o1 and o2, o1 == o2 and o2 == o1 must either both be true, or both be false.
Transitive: For all objects o1, o2, and o3, if o1 == o2 and o2 == o3 are true, then o1 == o3 must be true.

The method should also be consistent over time, so whether two objects are equal should only change if at least one of the objects was modified.

If a subclass overrides the equality operator, it should override the hashCode method as well to maintain consistency.

Inherited from Interceptor.

Implementation

bool operator ==(Object other) => identical(this, other);