AUDIO CODING DEVICE, AUDIO CODING METHOD, AUDIO CODING PROGRAM, AUDIO DECODING DEVICE, AUDIO DECODING METHOD, AND AUDIO DECODING PROGRAM

摘要

An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.

主权项

1. An audio encoding device for encoding an audio signal, comprising:
a processor; an audio encoding unit executable with the processor to encode an audio signal; and a side information encoding unit executable with the processor to calculate side information from a look-ahead signal and encode the side information.