An acoustic muffler sock for use with a prosthetic device liner or with a socket of a prosthetic device includes a first sock opening at one end and sound absorbing material designed to inhibit noises that are often created from the liner/amputated limb interaction. The acoustic muffler sock is configured to be positioned over the liner before the liner and the acoustic muffler sock thereon is inserted into the socket for the prosthetic device. The acoustic muffler sock may further comprise a sound barrier material. The muffler can also be part of a sock that goes over the prosthetic device.
