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    Interface AudioBufferSourceNode

    The AudioBufferSourceNode interface is an AudioScheduledSourceNode which represents an audio source consisting of in-memory audio data, stored in an AudioBuffer.

    MDN Reference

    interface AudioBufferSourceNode {
        buffer: AudioBuffer | null;
        channelCount: number;
        channelCountMode: ChannelCountMode;
        channelInterpretation: ChannelInterpretation;
        context: BaseAudioContext;
        detune: AudioParam;
        loop: boolean;
        loopEnd: number;
        loopStart: number;
        numberOfInputs: number;
        numberOfOutputs: number;
        onended: ((this: AudioScheduledSourceNode, ev: Event) => any) | null;
        playbackRate: AudioParam;
        addEventListener<K extends "ended">(
            type: K,
            listener: (
                this: AudioBufferSourceNode,
                ev: AudioScheduledSourceNodeEventMap[K],
            ) => any,
            options?: boolean | AddEventListenerOptions,
        ): void;
        addEventListener(
            type: string,
            listener: EventListenerOrEventListenerObject,
            options?: boolean | AddEventListenerOptions,
        ): void;
        connect(
            destinationNode: AudioNode,
            output?: number,
            input?: number,
        ): AudioNode;
        connect(destinationParam: AudioParam, output?: number): void;
        disconnect(): void;
        disconnect(output: number): void;
        disconnect(destinationNode: AudioNode): void;
        disconnect(destinationNode: AudioNode, output: number): void;
        disconnect(destinationNode: AudioNode, output: number, input: number): void;
        disconnect(destinationParam: AudioParam): void;
        disconnect(destinationParam: AudioParam, output: number): void;
        dispatchEvent(event: Event): boolean;
        removeEventListener<K extends "ended">(
            type: K,
            listener: (
                this: AudioBufferSourceNode,
                ev: AudioScheduledSourceNodeEventMap[K],
            ) => any,
            options?: boolean | EventListenerOptions,
        ): void;
        removeEventListener(
            type: string,
            listener: EventListenerOrEventListenerObject,
            options?: boolean | EventListenerOptions,
        ): void;
        start(when?: number, offset?: number, duration?: number): void;
        stop(when?: number): void;
    }

    Hierarchy (View Summary)

    Index

    Properties

    buffer channelCount channelCountMode channelInterpretation context detune loop loopEnd loopStart numberOfInputs numberOfOutputs onended playbackRate

    Methods

    addEventListener connect disconnect dispatchEvent removeEventListener start stop

    Properties

    buffer: AudioBuffer | null

    The buffer property of the AudioBufferSourceNode interface provides the ability to play back audio using an AudioBuffer as the source of the sound data.

    MDN Reference

    channelCount: number

    The channelCount property of the AudioNode interface represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.

    MDN Reference

    channelCountMode: ChannelCountMode

    The channelCountMode property of the AudioNode interface represents an enumerated value describing the way channels must be matched between the node's inputs and outputs.

    MDN Reference

    channelInterpretation: ChannelInterpretation

    The channelInterpretation property of the AudioNode interface represents an enumerated value describing how input channels are mapped to output channels when the number of inputs/outputs is different. For example, this setting defines how a mono input will be up-mixed to a stereo or 5.1 channel output, or how a quad channel input will be down-mixed to a stereo or mono output.

    MDN Reference

    context: BaseAudioContext

    The read-only context property of the AudioNode interface returns the associated BaseAudioContext, that is the object representing the processing graph the node is participating in.

    MDN Reference

    detune: AudioParam

    The detune property of the AudioBufferSourceNode interface is a k-rate AudioParam representing detuning of oscillation in cents.

    MDN Reference

    loop: boolean

    The loop property of the AudioBufferSourceNode interface is a Boolean indicating if the audio asset must be replayed when the end of the AudioBuffer is reached.

    MDN Reference

    loopEnd: number

    The loopEnd property of the AudioBufferSourceNode interface specifies is a floating point number specifying, in seconds, at what offset into playing the AudioBuffer playback should loop back to the time indicated by the loopStart property. This is only used if the loop property is true.

    MDN Reference

    loopStart: number

    The loopStart property of the AudioBufferSourceNode interface is a floating-point value indicating, in seconds, where in the AudioBuffer the restart of the play must happen.

    MDN Reference

    numberOfInputs: number

    The numberOfInputs property of the AudioNode interface returns the number of inputs feeding the node. Source nodes are defined as nodes having a numberOfInputs property with a value of 0.

    MDN Reference

    numberOfOutputs: number

    The numberOfOutputs property of the AudioNode interface returns the number of outputs coming out of the node. Destination nodes — like AudioDestinationNode — have a value of 0 for this attribute.

    MDN Reference

    onended: ((this: AudioScheduledSourceNode, ev: Event) => any) | null

    MDN Reference

    playbackRate: AudioParam

    The playbackRate property of the AudioBufferSourceNode interface Is a k-rate AudioParam that defines the speed at which the audio asset will be played.

    MDN Reference

    Methods

    • The connect() method of the AudioNode interface lets you connect one of the node's outputs to a target, which may be either another AudioNode (thereby directing the sound data to the specified node) or an AudioParam, so that the node's output data is automatically used to change the value of that parameter over time.

      MDN Reference

      Parameters

      • destinationNode: AudioNode
      • Optionaloutput: number
      • Optionalinput: number

      Returns AudioNode

    • Parameters

      • destinationParam: AudioParam
      • Optionaloutput: number

      Returns void

    • The disconnect() method of the AudioNode interface lets you disconnect one or more nodes from the node on which the method is called.

      MDN Reference

      Returns void

    • Parameters

      • output: number

      Returns void

    • Parameters

      Returns void

    • Parameters

      Returns void

    • Parameters

      • destinationNode: AudioNode
      • output: number
      • input: number

      Returns void

    • Parameters

      Returns void

    • Parameters

      Returns void

    • The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually with dispatchEvent().

      MDN Reference

      Parameters

      Returns boolean

    • The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.

      MDN Reference

      Type Parameters

      • K extends "ended"

      Parameters

      Returns void

    • The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.

      MDN Reference

      Parameters

      Returns void

    • The start() method of the AudioBufferSourceNode Interface is used to schedule playback of the audio data contained in the buffer, or to begin playback immediately.

      MDN Reference

      Parameters

      • Optionalwhen: number
      • Optionaloffset: number
      • Optionalduration: number

      Returns void

    • The stop() method on AudioScheduledSourceNode schedules a sound to cease playback at the specified time. If no time is specified, then the sound stops playing immediately.

      MDN Reference

      Parameters

      • Optionalwhen: number

      Returns void

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