Aux sends, short for auxiliary sends, are signal routing pathways found on audio mixing consoles that allow sound engineers to send a portion of the audio signal from a channel to external devices, like effects processors or monitors, while maintaining the original signal's presence in the mix. This feature is essential during live performances and post-production, as it enables flexible control over sound processing and monitoring setups, ensuring that artists can hear themselves and the desired effects without altering the overall mix.
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