It would be amazing if someone has an advice. I am working on an art project where I would like to measure sounds in different locations in the room. The room is pretty small but I would like to avoid wires. I thought that I could use sound sensors to detect the noise but I am not sure how to transfer it to the arduino. I looked up bluetooth connections, but I couldn't figure out if I can pair multiple devices to an arduino at the same time. Also, I checked out IR sensors.
Does somebody know if there is an Sound IR sensor and if I can send multiple values to Arduino?
I'm not a BT expert, but I doubt that an Arduino can handle multiple bluetooth connections. Search for "wireless networks" to find out more details.
How do you intend to process the sound? Without special boards (spectrum analysers) an Arduino may be overloaded by such software. Unless you find a clever solution, you'll need much processing power.
You mentioned motors in your sketch. Motors tend to produce noise, that should be suppressed somehow (shelter, software filter).
Microphone shields can be used to detect the sounds and detect at a set level. This could then be sent via a Tx to the Arduino. Each sensor would require a micro controller to trigger the Tx and code for each individual sensor.
The Rx would pick up all Tx signals and have to discriminate between them.