Patent ID: 9679572
Date: 2017-06-13
CPC Classifications: G10L

Claim:
1. A method of decoding scalable digital audio, comprising: receiving a digital audio packet, including a plurality of pieces of direct audio channel data mapped to respective physical channels in a one-to-one correspondence and a plurality of pieces of indirect audio channel data indirectly mapped to respective physical channels; extracting the pieces of indirect audio channel data from the digital audio packet; generating pieces of physical audio channel data corresponding to a number of physical channels more than a number of pieces of indirect audio channel data using the pieces of indirect audio channel data; and matching the pieces of physical audio channel data to the respective physical channels in a one-to-one correspondence and then performing output, wherein the pieces of direct audio channel data are pulse code modulated wave files, and are maintained in a state of being uncompressed while the digital audio packet is being packaged, distributed, and stored.