81a8503c1d
This demo requires an input hooked up to the default recording device and will stream that input to the default output device for 10 seconds, alternating between a muted and unmuted state every second
40 lines
988 B
Julia
40 lines
988 B
Julia
# This demos how real-time audio manipulation can be done using AudioNodes. To
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# run it, hook up some input audio to your default recording device and run the
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# script. The demo will run for 10 seconds alternating the node between a muted
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# and unmuted state
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using AudioIO
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type MutableNode <: AudioIO.AudioNode
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active::Bool
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deactivate_cond::Condition
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muted::Bool
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function MutableNode(muted::Bool)
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new(false, Condition(), muted)
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end
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end
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function MutableNode()
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MutableNode(false)
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end
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import AudioIO.render
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function render(node::MutableNode, device_input::AudioIO.AudioBuf, info::AudioIO.DeviceInfo)
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return device_input .* !node.muted, AudioIO.is_active(node)
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end
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function mute(node::MutableNode)
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node.muted = true
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end
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function unmute(node::MutableNode)
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node.muted = false
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end
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mutableNode = MutableNode()
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AudioIO.play(mutableNode)
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muteTransitions = { true => unmute, false => mute }
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for i in 1:10
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sleep(1)
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muteTransitions[mutableNode.muted](mutableNode)
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end
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