Data conversion method and client-server system

Abstract

A data conversion method includes the steps of retrieving direct stream digital data one byte at a time from a direct stream digital file, the direct stream digital data being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally first data is placed at a least significant bit of a given byte and temporally last data is placed at a most significant bit of the given byte; and outputting the retrieved direct stream digital data of one byte so that the least significant bit is temporally first and the most significant bit is temporally last.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram equivalently showing the main part of an embodiment of the present invention;

FIG. 3 is a diagram showing a file format;

FIG. 4 is a schematic diagram equivalently showing the main part of another embodiment of the present invention;

FIG. 5 is a flowchart showing a process according to an embodiment of the present invention;

FIGS. 6A and 6B are waveform diagrams showing DSD data according to an embodiment of the present invention; and

FIG. 7 is a diagram showing a file format.

Claims

1. A data conversion method comprising: retrieving direct stream digital data one byte at a time from a direct stream digital file, the direct stream digital data being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally-first data is placed at a least significant bit of a given byte and temporally-last data is placed at a most significant bit of the given byte; andoutputting the retrieved direct stream digital data of one byte so that the least significant bit is temporally first and the most significant bit is temporally last.

2. A data conversion method comprising: retrieving direct stream digital data one byte at a time from a direct stream digital file, the direct stream digital data being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally-first data is placed at a most significant bit of a given byte and temporally-last data is placed at a least significant bit of the given byte; andoutputting the retrieved direct stream digital data of one byte so that the most significant bit is temporally first and the least significant bit is temporally last.

3. A data conversion method comprising: retrieving direct stream digital data for each audio channel one byte at a time from a direct stream digital file, the direct stream digital data including frames for at least a first audio channel and a second audio channel, the frames being alternately arranged in order of a frame for the first audio channel and a frame for the second audio channel, each of the frames being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally first data is placed at a least significant bit of a given byte and temporally last data is placed at a most significant bit of the given byte; andoutputting the retrieved direct stream digital data of one byte so that the least significant bit is temporally first and the most significant bit is temporally last.

4. A data conversion method comprising: retrieving direct stream digital data for each audio channel one byte at a time from a direct stream digital file, the direct stream digital data including frames for at least a first audio channel and a second audio channel, the frames being alternately arranged in order of a frame for the first audio channel and a frame for the second audio channel, each of the frames being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally-first data is placed at a most significant bit of a given byte and temporally-last data is placed at a least significant bit of the given byte; andoutputting the retrieved direct stream digital data of one byte so that the most significant bit is temporally first and the least significant bit is temporally last.

5. A client-server system comprising: a client apparatus; anda server apparatus,wherein the server apparatus transmits a direct stream digital file including direct stream digital data to the client apparatus, the direct stream digital data including frames for at least a first audio channel and a second audio channel, the frames being alternately arranged in order of a frame for the first audio channel and a frame for the second audio channel, each of the frames being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally-first data is placed at a least significant bit of a given byte and temporally-last data is placed at a most significant bit of the given byte,the client apparatus receives the direct stream digital file transmitted from the server apparatus,the client apparatus retrieves the direct stream digital data for each of the first audio channel and the second audio channel one byte at a time from the received direct stream digital file, andthe client apparatus performs digital-to-analog conversion on the retrieved direct stream digital data of one byte so that the least significant bit is temporally first and the most significant bit is temporally last.

6. A client-server system comprising: a client apparatus; anda server apparatus,wherein the server apparatus transmits a direct stream digital file including direct stream digital data to the client apparatus, the direct stream digital data including frames for at least a first audio channel and a second audio channel, the frames being alternately arranged in order of a frame for the first audio channel and a frame for the second audio channel, each of the frames being a one-bit data stream, the direct stream digital data being arranged in the direct stream digital file so that temporally-first data is placed at a most significant bit of a given byte and temporally-last data is placed at a least significant bit of the given byte,the client apparatus receives the direct stream digital file transmitted from the server apparatus,the client apparatus retrieves the direct stream digital data for each of the first audio channel and the second audio channel one byte at a time from the received direct stream digital file, andthe client apparatus performs digital-to-analog conversion on the retrieved direct stream digital data of one byte so that the most significant bit is temporally first and the least significant bit is temporally last.