Anet gods, please dont change the sound of either weapon!
As a person who owns Quip at least two of my favorite parts of the legendary are that it looks really witty and funny. But more importantly the sound that quip makes is what makes me enjoy the weapon the most. Personally I dont find the noise it makes annoying at all and I think it gives the weapon a lot of character.
As for Dreamer I dont personally own one but as previously mentioned if you removed the unicorn noise it makes it would completely change the identity of the weapon.
But as other people mentioned if you just added a slider that would mute it for the people who do find it aggravating or annoying that would be a really good fix. So people who enjoy hearing the sounds can choose to do so and other who chose not to dont have to…