> more reliable I've worked on some audio/video alert systems. Basic threshold detectors produce a lot of false positives. It's common for parents to put white

> more reliable I've worked on some audio/video alert systems. Basic threshold detectors produce a lot of false positives. It's common for parents to put white noise machines in the room to help the baby sleep. When you have a noise generating machine in the same room, you need more sophisticated detection. False positives are the fastest way to frustrate users.