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# Mixing Audio

Using Switchboard SDK you can easily mix together different audio streams.

## Using the MixerNode Class​

You can easily use the MixerNode to mix together different audio sources. You can put arbitrary number of input streams on a MixerNode and it will merge them into one output stream.

import SwitchboardSDK...let mixerNode = SBMixerNode()let audioGraph = SBAudioGraph()...audioGraph.addNode(mixerNode)audioGraph.connect(vocalsInputNode, to: mixerNode)audioGraph.connect(musicInputNode, to: mixerNode)

For more information take a look at the Mixer Example