AUDIO SIGNAL PROCESSING APPARATUS AND METHOD, ENCODING APPARATUS AND METHOD, AND PROGRAM

摘要

The present technique relates to audio signal processing apparatus and method, encoding apparatus and method, and program whereby higher-quality sounds can be obtained. A selection unit selects, from among supplied audio signals of a multichannel, the audio signals of dialog sound channels and the audio signals of down-mixture target channels. The down mixture unit down-mixes the audio signals of the down-mixture target channels. An addition unit adds the audio signals of the dialog sound channels to the audio signals of predetermined channels that are the audio signals of one or more channels obtained by the down mixture. The present technique can be applied to a decoder.