Control unit and method for transmitting audio signals over an optical network

An audio processor (56) processes audio data (54A-54D) and generates single processed audio data (62) at frame synchronization rate of optical network (32). A multiplexer (58) generates multiplexed audio data (66) with several frames, each having multiplexed channels for transmitting data (54A-54D,62) respectively. An optical network interface (40) generates optical multiplexed audio data (50) based on data (66). An independent claim is also included for method for distributing multiplexed audio data over optical network.