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ChannelMergerNode

The ChannelMergerNode interface, often used in conjunction with its opposite, ChannelSplitterNode, reunites different mono inputs into a single output. Each input is used to fill a channel of the output. This is useful for accessing each channels separately, e.g. for performing channel mixing where gain must be separately controlled on each channel.

If ChannelMergerNode has one single output, but as many inputs as there are channels to merge; the number of inputs is defined as a parameter of its constructor and the call to AudioContext.createChannelMerger. In the case that no value is given, it will default to 6.

Using a ChannelMergerNode, it is possible to create outputs with more channels than the rendering hardware is able to process. In that case, when the signal is sent to the AudioContext.listener object, supernumerary channels will be ignored.

Number of inputs	variable; default to `6`.
Number of outputs	`1`
Channel count mode	`"max"`
Channel count	`2` (not used in the default count mode)
Channel interpretation	`"speakers"`

Constructor

ChannelMergerNode(): Creates a new ChannelMergerNode object instance.

Properties

No specific property; inherits properties from its parent, AudioNode.

Methods

No specific method; inherits methods from its parent, AudioNode.

Example

Specifications

Specification	Status	Comment
Web Audio API The definition of 'ChannelMergerNode' in that specification.	Working Draft

Browser compatibility

Feature	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	14	Yes	25	No	15	6
`ChannelMergerNode()` constructor	55	?	53	No	42	?

Feature	Android webview	Chrome for Android	Edge mobile	Firefox for Android	IE mobile	Opera Android	iOS Safari
Basic support	Yes	14	Yes	26	No	15	?
`ChannelMergerNode()` constructor	55	55	?	53	No	42	?