CPC G10L 19/008 (2013.01) [G10L 19/00 (2013.01); G10L 19/002 (2013.01); G10L 19/16 (2013.01); H04S 3/00 (2013.01); H04S 2400/03 (2013.01); H04S 2400/05 (2013.01)] | 10 Claims |
1. A method of processing an audio signal, the method comprising:
receiving a CPE (Channel Pair Element) encoded via MPEG Surround 212 (MPS212) and information indicating whether the CPE uses an internal channel (IC) processing;
generating a band-limited IC signal based on the CPE and an internal channel gain (ICG) in case that the information indicates that the CPE uses the IC processing;
downmixing a pair of SBR (Spectral Band Replication) parameters into a mono SBR parameter based on a rendering parameter of a format converter;
generating a full band IC signal based on the generated band-limited IC signal and the mono SBR parameter; and
generating stereo output signals, based on the generated full band IC signal.
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