Patent ID: 8103513
Filing Date: 2012-01-24
Classification: G10L,H04R,H04S

Abstract:
1. A broadcast playback system, comprising: a receiver configured to receive broadcast signal including an audio signal generated by downmixing a multi-channel audio signal; an application unit configured to store an audio codec for decoding an audio signal; a processor configured to perform operations of generating the multi-channel audio signal from the audio signal, the operations comprising: extracting time slot information in a variable bit length, the time slot information indicating a time slot to which a parameter set is applied; extracting parameter band information in a fixed bit length, the parameter band information indicating a number of parameter bands for an entire frequency domain of the audio signal; converting the audio signal into the multi-channel audio signal by applying a parameter of the parameter set to a parameter band of the time slot, based on the time slot information and the parameter band information, wherein extracting the time slot information comprises: