摘要:
An audio decoding device includes a coded information memory section for storing coded audio information; an information transmission section for reading the coded audio information stored at an arbitrary position in the coded information memory section; and an audio decoding section for decoding the coded audio information read by the information transmission section and outputting the resultant audio information in accordance with a time axis.
摘要:
An audio decoding apparatus is provided for receiving a bit stream on a block-by-block basis, decoding one block of the bit stream to form decoded audio data for a plurality of channels, and storing the decoded audio data for each of the plurality of channels in a memory device, thereby down-mixing the decoded audio data for each of the plurality of channels. The audio decoding apparatus includes an operation section for down-mixing the decoded audio data for each of the plurality of channels corresponding to a first block of the bit stream in the memory section while a second block of the bit stream is decoded.
摘要:
An audio decoding apparatus is provided for receiving a bit stream on a block-by-block basis, decoding one block of the bit stream to form decoded audio data for a plurality of channels, and storing the decoded audio data for each of the plurality of channels in a memory device, thereby down-mixing the decoded audio data for each of the plurality of channels. The audio decoding apparatus includes an operation section for down-mixing the decoded audio data for each of the plurality of channels corresponding to a first block of the bit stream in the memory section while a second block of the bit stream is decoded.
摘要:
An audio decoding device includes a coded information memory section for storing coded audio information; an information transmission section for reading the coded audio information stored at an arbitrary position in the coded information memory section; and an audio decoding section for decoding the coded audio information read by the information transmission section and outputting the resultant audio information in accordance with a time axis.
摘要:
A decoding apparatus according to the present invention comprises a stream input section (1) for separating an input bit stream into auxiliary information and encoded data, an auxiliary information analyzing section (2) for obtaining at least full channel configuration information by analyzing the auxiliary information supplied from the stream input section, a parameter ROM section (5) prestoring therein a decoding control table which presents decoding type numbers classified according to the full channel configuration information, a decoding control section (3) for selecting a decoding type number from the decoding control table on the basis of the full channel configuration information supplied from the auxiliary information analyzing section (2), and for performing decoding control based on the selected type number, and a decoding section (4) for generating output data in accordance with an instruction from the decoding control section (3).
摘要:
A decoding device for decoding a bit stream defined by MPEG2 Audio Multichannel is provided. The bit stream including an MPEG1 compatible area and an MPEG2 multichannel extended area, the MPEG1 compatible area including MPEG1 side information. The decoding device includes: MPEG1 decoding means for decoding the MPEG1 compatible area; MC decoding means for decoding the MPEG2 multichannel extended area; and MC header detection means for executing a first processing including locating a position of a header of the MPEG2 multichannel extended area based on the MPEG1 side information and shifting a read position of the bit stream to the position of the header.
摘要:
A compressed code decoding device of the present invention includes: a decoding section for receiving a plurality of groups of blocks of compressed codes and decoding each of the blocks of compressed codes; a buffer section for storing decoded signals decoded by the decoding section; a reproduction time acquisition section for acquiring a reproduction time at which to reproduce a predetermined one of the blocks; an output section for externally outputting the decoded signals stored in the buffer section; a detection section for detecting that the predetermined block of compressed codes has been decoded and output via the output section; an addition section for, at a time when the detection section detects that the predetermined block has been output, adding a time required for reproducing the predetermined block to the reproduction time acquired by the reproduction time acquisition section so as to produce a synchronization time; a synchronization section for comparing the synchronization time produced by the addition section and a current time so as to determine whether the synchronization time is ahead of or behind the current time; a code discarding section for, if the synchronization section determines that the synchronization time is ahead of the current time, discarding either compressed codes of one of the blocks next to the predetermined block or compressed codes of one of the groups next to the group including the predetermined block; and a reproduction delay section for, if the synchronization section determines that the synchronization time is behind the current time, delaying output of either decoded signals of the compressed codes of one of the blocks next to the predetermined block or decoded signals of the compressed codes of one of the groups next to the group including the predetermined block.
摘要:
A decoding apparatus according to the present invention comprises a stream input section (1) for separating an input bit stream into auxiliary information and encoded data, an auxiliary information analyzing section (2) for obtaining at least full channel configuration information by analyzing the auxiliary information supplied from the stream input section, a parameter ROM section (5) prestoring therein a decoding control table which presents decoding type numbers classified according to the full channel configuration information, a decoding control section (3) for selecting a decoding type number from the decoding control table on the basis of the full channel configuration information supplied from the auxiliary information analyzing section (2), and for performing decoding control based on the selected type number, and a decoding section (4) for generating output data in accordance with an instruction from the decoding control section (3).