APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD THEREOF

摘要

An apparatus for encoding and decoding an audio signal and a method thereof are provided to represent the number of parameter bands applied to an OTT box by the fixed number of bits, thereby reducing the amount of transmission data. An i has a value of 0 to numOttBoxes 1. The numOttBoxes is the total number of OTT(One-To-Two) boxes. The value of I indicates each OTT box. The number of parameter bands applied to the each OTT box is represented by the value of i. When the OTT box has an LFE(Low Frequency Enhancement) channel mode, the number of parameter bands, bsOttbands(801), applied to the LFE channel of the OTT box can be represented by using the fixed number of bits. When the OTT box has not the LFE channel mode, the total number of parameter bands, numBands, is allocated to the channel of the OTT box.