The flute is probably one of the less loud instruments among the many in an orchestra. The fact alone that it is small already makes it so. Another particular aspect that makes it less audible is that in an orchestra, there are very few of flutists. There could be a lot of other wind instrument players, as well as stringed instrument ones. But when it comes to the flutist, it is possible that an orchestra would only have one. However, orchestral music could not be the same without the flute. In fact, there are some pieces that could never be played without the flute around. It is for this reason that an orchestra conductor must see to it that there is a flutist among his many musicians.
There are some music pieces that need to be played with flute solos. In these instances, the audience would clearly appreciate more the presence of the flutist. When the flute is on solo, the rest of the orchestra usually goes at rest. The orchestra needs to be silent in order not to drown the flute. There may be some other instruments that would serve as background accompaniment but these are the ones with sounds that are not going to overwhelm the flute, this also can create pain in the hand. Otherwise, the flutist would have to play near a microphone so that his sound would be amplified. It is the conductor’s discretion as to when the flutist would make stresses and when the entire orchestra could join in. This is how important his role is.