I am not sure if here is the right place to ask my question. But I will ask.
I want to build some kind of sound detector circuit to prevent sleeping baby from disturbances. But, it should detect only the disturbing sounds. As it is related with the human perception I know there is no exact answer.
The question I want to ask is, which property of sound disturbs us? What type of sound can wake us up from sleeping. Do, I need to detect the frequency regions or the volume it self. If I am not wrong, the volume is proportional to the voltage detected by the mic. So, the voltage level is enough, or do I need to filter the sound based on the frequency. If I need filtering, which frequency region do I need to pass to detect?
Thanks for reading.