A sound reducing device in a textile machine including a plurality of spindle assemblies driven by a travelling belt and each forming a balloon of yarn upon rotation thereof. The spindle assembly comprises a first source of noise, which are the travelling belt and the spindle wharves, and a second source of noise, which are the balloon forming sections of the spindle assemblies. The sound reducing device is characterized in that one of the first and second sources of noise is covered by a first sound reducing boundary and the other of the first and second noise sources as well as the first sound reducing boundary is disposed within a second sound reducing boundary.