One example is the Atacama Large Millimeter Array, that in practice is three separate arrays of telescopes (an array up to 50 dishes that are 12 meter diameter, an array up to 10 that are 7 meter diameter, and another up to 4 dishes that are 12 meters in diameter) that are observing different targets at the same time. Each array has its own kit of sound clips and after a few sessions it becomes second nature to identify which array needs attention by the sounds coming over the speaker. "Uh oh, looks like there's gonna be trouble!" followed by another announcement that the script was terminated. Then the array operator works on recovery while I would see if the script should be re-started or if weather conditions had changed enough to warrant a different choice of observation.
Similarly, optical telescopes often have audible alerts when integrations have finished and the data are being read off of the CCD/sensor.