Cloaks have recovered their voices. They are not silent anymore as of today.
This was actually completed a while ago but not deployed.
The current values are that any ship within 4k from the cloaked ship will hear a small sound indicating the presence of a cloaked ship every five seconds.
4k and 5 seconds is the default value the development team provided. Further fine-tuning is left to the administration team.
The sound is the surveying sound for those that are familiar with it. For those that aren't, listen to this beautiful youtube video.
