[Freeswitch-users] Record_session volume

Hi, I'm using "record_session" to record a one-legged call, that is, a call which is established between a FS extension that plays audio files and a person. The call is recorded OK, but the volume of the person talking is several times lower compared to that of FS playback. Is there a way to manage the gain of each channel during a record_session? Is this something that should be happening? Cesar Cepeda.