Transmission apparatus, transmission method, reception apparatus, and reception method
AssigneeSony Corporation
InventorGEN ICHIMURA
Life of this patent
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Abstract
To enable to favorably send a compressed digital audio signal at a high data rate. First, second, and third metadata are added to a compressed digital audio signal of a predetermined number of channels. The first metadata is metadata indicating a sending frequency of the compressed digital audio signal. The second metadata is metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal. The third metadata is metadata indicating a ratio of the sending frequency to the sampling frequency. The compressed digital audio signal provided with each type of the metadata is transmitted to an external device through a predetermined sending path.
Claims16
A transmission apparatus comprising:
- a metadata addition unit that adds, to a compressed digital audio signal of a predetermined number of channels, first metadata indicating a sending frequency of the compressed digital audio signal, second metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal, and third metadata indicating a ratio of the sending frequency to the sampling frequency;
- and
- a transmission unit that transmits the compressed digital audio signal provided with each type of the metadata to an external device through a predetermined sending path.
A transmission method comprising:
- a metadata addition step of adding, to a compressed digital audio signal of a predetermined number of channels, first metadata indicating a sending frequency of the compressed digital audio signal, second metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal, and third metadata indicating a ratio of the sending frequency to the sampling frequency;
- and
- a transmission step of transmitting, by a transmission unit, the compressed digital audio signal provided with each type of the metadata to an external device through a predetermined sending path.
A reception apparatus comprising:
- a reception unit that receives a compressed digital audio signal of a predetermined number of channels from an external device through a predetermined sending path, wherein
- first metadata indicating a sending frequency of the compressed digital audio signal, second metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal, and third metadata indicating a ratio of the sending frequency to the sampling frequency are added to the compressed digital audio signal;
- and
- a processing unit that executes a process related to the compressed digital audio signal based on at least one type of the metadata.
A reception method comprising:
- a reception step of receiving, by a reception unit, a compressed digital audio signal of a predetermined number of channels from an external device through a predetermined sending path, wherein
- first metadata indicating a sending frequency of the compressed digital audio signal, second metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal, and third metadata indicating a ratio of the sending frequency to the sampling frequency are added to the compressed digital audio signal;
- and
- a processing step of executing a process related to the compressed digital audio signal based on at least one type of the metadata.
Dependencies are inferred from the claim text.