Patent ID: 8811908

Claim:
An audio reproduction system, comprising: an audio reproduction apparatus to reproduce a multi-channel audio stream of 5.1 channels from a recording medium, to extract a rear channel audio stream, to detect whether a transmission module unit is mounted thereon, and to switch the rear channel audio stream between a wireless transmission mode and a wired transmission mode according to whether the transmission module unit is mounted on the audio reproduction apparatus; the transmission module unit to modulate the rear channel audio stream extracted from the audio reproduction apparatus into a wireless signal and to wirelessly transmit the signal if mounted on the audio reproduction apparatus, wherein the audio reproduction apparatus is switched from the wired transmission mode to the wireless transmission mode when the transmission module unit is mounted on the audio reproduction apparatus; and a reception module unit to receive and decode the rear channel audio stream wirelessly transmitted from the transmission module unit, and to amplify the decoded signal as a rear channel audio signal.