A method and an arrangement synchronizes data streams in networks, via a corresponding computer program and corresponding computer-readable storage medium which can be used, in particular, for synchronizing different audio playback devices (audio adapters) within a home network. Said home network can be a conventional computer network comprising both wireline and wireless components. According, in order to synchronize the data output in networks in which at least one data stream is transmitted by a network unit to at least two output units of the network, where said stream is outputted, first common time information is made available to at least the output units and the output of the data in the data stream is synchronized at least in terms of the phase and/or frequency on the basis of the first common time information.