Sound sensor only detect peaks I'm using this SparkFun Sound Sensor in my project for a simple ambient sound meter.

I'm just trying to monitor the raw analog envelope output for the moment.

My problem is that the output only changes with peak sounds, like a clap in my hands for example. But when the ambient sound is louder, people talking or loud music, the output doesn't change.
It seems you have to increase the gain, see inside the document

Sound dectector hookup guide

The following fragment:



Also take into account it needs between 3.5 and 5.5 V, while 5 V is ideal (see Quick start at the beginning of the same document.