Problems with the microphone of the Motorola One

when I speak on the call with my friends they listen to me well, but when I activate the speaker to listen to them better, they listen to me very softly or they do not listen to me, I think it is a problem with my cell phone since it has several microphones, when I do not use the speaker listen to me well, but when I activate the speaker no, it's as if changing that, it will change microphone too