When listen to music or watching video using the speakerphone speakers, the volume goes from nothing to louder and louder using the side controls. Is there any way to feather it so its a bit more gradual? It seems like it jumps from 0 to 5, then every click up it goes to 6, 7, 8 etch. What happens to the 1, 2, 3, 4?

Thanks in advance.