Transmission equipment and method of audio data/audio related information

Abstract

A method for transferring audio data and audio-related information includes: a generation step of generating second audio data from first audio data; a transmission step of transmitting the second audio data and audio-related information associated with the second audio data; and a reception step of receiving the second audio data and the audio-related information, wherein the audio-related information includes information representing a sampling frequency of the first audio data.

Description

technical field [0001] The invention relates to a method of digitally transmitting audio data and audio-related information. [0002] "Audio data" as used here is distinguished from "audio-related information". "Audio data" is information representing actual sound to be reproduced. "Audio-related information" is defined as any information that does not directly represent the actual sound to be reproduced, such as: category code, source number and channel number. Background technique [0003] Conventional methods of digitally transmitting audio data and audio-related information are implemented according to international standards such as IEC60958 and IEC61937. [0004] IEC60958 for transferring linear PCM data of 2 channels is widely used in digital data transfer applications including CD and DVD. IEC61937 is used to transmit data other than linear PCM data such as compressed data (for example: data compressed according to the MPEG standard). In recent years, IEC61937 ha...

AI Technical Summary

Problems solved by technology

However, the problem in this case is that the external device receiving the transmitted data does not know the sampling frequency at which the original audio data was sampled

Therefore, it is impossible for the audio data receiver 102 to detect the sampling frequency of the original audio data or the transfer speed of the transferred audio data.

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