KR101806508B1

KR101806508B1 - Time division audio playing apparatus

Info

Publication number: KR101806508B1
Application number: KR1020160022030A
Authority: KR
Inventors: 이재호
Original assignee: 이재호
Priority date: 2016-02-24
Filing date: 2016-02-24
Publication date: 2017-12-07
Also published as: KR20170099663A

Abstract

The present invention relates to a time-division-reproduction-based audio reproduction apparatus, and more particularly, to a time-division-reproduction-type audio reproduction apparatus in which a plurality of digital audio data transmitted in real time through different network paths are time- will be.

Description

[0001] The present invention relates to a time division audio playing apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a real time audio reproducing technique, and more particularly to a time division reproducing type audio reproducing device.

Korean Patent Laid-Open No. 10-2002-0029242 (2002.04.18) receives digital music data broadcasted in real time from a music-related server, converts it into an analog music signal, amplifies and outputs it, Reproducing apparatus.

The present inventors have studied a time-divisionally-reproduced audio reproduction technique in which a plurality of sound sources are mixed and reproduced as a result of time division reproduction of a plurality of digital audio data transmitted in real time through different network paths .

Korean Patent Publication No. 10-2002-0029242 (Apr. 18, 2002)

It is an object of the present invention to provide a time division reproduction type audio reproduction apparatus for time-divisionally reproducing a plurality of digital audio data transmitted in real time via different network paths.

According to an aspect of the present invention, there is provided an audio playback apparatus including: an audio receiver for receiving a plurality of digital audio data transmitted in real time through different network paths; A controller for controlling the digital audio data received by the audio receiver to be time-divisionally reproduced; And the like.

According to a further aspect of the present invention, the time division reproduction type audio reproduction apparatus includes: a plurality of buffers for temporarily storing each of a plurality of digital audio data received through the audio reception section; An audio processing unit for analog-converting the digital audio data output from the buffer and outputting the analog audio data; An amplifier for amplifying and outputting an analog audio signal output by the audio processing unit; A speaker for emitting an analog audio signal amplified by the amplifier to the outside; And further comprising:

According to a further aspect of the present invention, there is provided a decoding apparatus comprising: a decoding unit for decoding digital audio data output from the buffer by the time division reproduction type audio reproducing apparatus; And further comprising:

According to a further aspect of the present invention, the controller controls the digital audio data to be time-divisionally reproduced in accordance with the buffer output order.

According to a further aspect of the present invention, the control unit controls the digital audio data buffered in each of the plurality of buffers to be sequentially reproduced in the order of arrival of the specific byte, so that a plurality of pieces of digital audio data are time- Is reproduced.

According to a further aspect of the present invention, after the digital audio data to which the buffer is buffered is flushed, a time division reproduction interrupt signal is output.

According to a further aspect of the present invention, the audio receiving unit receives a plurality of digital audio data through a plurality of IP ports.

The present invention has the effect of enabling a listener to feel as if a plurality of sound sources are mixed and reproduced by time-divisionally reproducing a plurality of digital audio data transmitted in real time through different network paths.

1 is a network diagram of a time division reproduction type audio reproducing apparatus according to the present invention.
2 is a block diagram showing a configuration of an embodiment of a time division reproduction type audio reproducing apparatus according to the present invention.
3 is a diagram illustrating time-divisionally reproducing a plurality of digital audio data transmitted in real time through different network paths.
FIG. 4 is a flowchart illustrating an example of an audio reproduction operation of the time division reproduction type audio reproduction apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The terms used throughout the specification of the present invention have been defined in consideration of the functions of the embodiments of the present invention and can be sufficiently modified according to the intentions and customs of the user or operator. It should be based on the contents of.

1 is a network diagram of a time division reproduction type audio reproducing apparatus according to the present invention. 1, the time-division-regenerative-mode audio reproducing apparatus 100 according to the present invention transmits a plurality of digital audio data through a plurality of IP network paths 300 through a switching device 200 such as a hub, (400).

2 is a block diagram showing a configuration of an embodiment of a time division reproduction type audio reproducing apparatus according to the present invention. As shown in FIG. 2, a time-divisionally-reproduced audio reproducing apparatus 100 according to this embodiment includes an audio receiving unit 110 and a control unit 120.

The audio receiver 110 receives a plurality of digital audio data transmitted in real time via different network paths. At this time, the audio receiver 110 can receive a plurality of digital audio data through a plurality of IP ports.

The unique address of the Internet application consists of a combination of an IP address and a port number. Depending on the application environment, a plurality of ports may be allocated. HTTP can use 80 ports.

The user selects the IP address of the server which is the sound source source in which the digital audio data exists through the client program of the time-divisional playback type audio reproducing apparatus 100, and the port number is automatically selected by the client program.

The audio receiving unit 110 receives digital audio data in real time from a plurality of unique addresses configured by a combination of an IP address and a port number selected by the client program of the time division reproducing method audio reproducing apparatus 100. [

For example, the digital sound source data A is received via the IP address 23 through the network path 1, the digital sound source data B is received via the IP address 27 via the network path 2, and the digital sound source data C is received via the network path 3 Lt; RTI ID = 0.0 > 34 < / RTI >

The controller 120 controls the digital audio data received by the audio receiver 110 to be time-divisionally reproduced. 3 is a diagram illustrating time-divisionally reproducing a plurality of digital audio data transmitted in real time through different network paths.

The digital sound source data A is reproduced by a specific byte in the time interval t1, the digital sound source data B is reproduced by a specific byte in the next time interval t2, and the digital sound source data C is reproduced by a specific byte in the next time interval t3 can see.

When multiple sound sources are reproduced in a very short time interval, the human ear can not distinguish the sound source. For example, when the digital sound source data A, the digital sound source data B, and the digital sound source data C are time-divisionally reproduced at time intervals of about 20 ms, the sound of the listener's ears sounds like a synthesized sound source.

Therefore, according to the present invention, a plurality of digital audio data transmitted in real time through different network paths are time-divisionally reproduced so that the listener can feel as if a plurality of sound sources are mixed and reproduced.

According to a further aspect of the present invention, the time-divisionally reproduced audio reproducing apparatus 100 further includes a plurality of buffers 130, an audio processing unit 140, an amplifier 150, and a speaker 160 .

The plurality of buffers 130 temporarily store a plurality of digital audio data received through the audio receiver 110. Each of the plurality of digital audio data received in real time from different network paths by the audio receiving unit 110 is stored in the plurality of buffers 130.

In this case, the buffer 130 may be configured to flush buffered digital audio data and then output a time division reproduction interrupt signal. The digital audio data buffered in each of the plurality of buffers 130 is flushed to empt the buffer and output a time division reproduction interrupt signal when the buffer maximum capacity is reached. For example, the maximum buffer capacity may be 2048 bytes.

The audio processing unit 140 analog-converts the digital audio data output from the buffer 130 and outputs the analog audio data. The audio processing unit 140 converts the digital audio data output from the buffer 130 into analog data under the control of the control unit 120 which receives the time division reproduction interrupt signal from the buffer 130. [

For example, the controller 120 may analog-convert a plurality of digital audio data according to the output order of the plurality of buffers 130 so that a plurality of digital audio data are time-divisionally reproduced according to the output order of the plurality of buffers 130 Can be controlled.

In this case, the controller 120 sequentially performs analog-to-digital conversion on the digital audio data that is flushed in the order that the digital audio data buffered in each of the plurality of buffers 130 reaches a specific byte, Data can be controlled to be time-divisionally reproduced.

The amplifier 150 amplifies and outputs the analog audio signal output from the audio processing unit 140. The volume of the analog audio signal output according to the amplification level of the amplifier 150 is determined.

The speaker 160 emits the analog audio signal amplified by the amplifier 150 to the outside. Then, a plurality of digital audio signals, which are transmitted in real time through different network paths, are viewed by a listener through the speaker 160, and the listener feels as if a plurality of sound sources are mixed and reproduced do.

According to a further aspect of the present invention, the time-divisionally-reproduced-audio-playback apparatus 100 may further include a decoding unit 170. The decoding unit 170 decodes the digital audio data output from the buffer 130 and outputs the decoded digital audio data to the audio processing unit 140.

In this embodiment, when digital audio data is encoded and transmitted in a lossy or lossless compression format such as mp3, aac, flac, etc. from the sound source, the audio data is decoded through the decoding unit 170 and output Fig.

The audio reproduction operation of the time division reproduction type audio reproduction apparatus according to the present invention as described above will be described with reference to FIG. FIG. 4 is a flowchart illustrating an example of an audio reproduction operation of the time division reproduction type audio reproduction apparatus according to the present invention.

In step 510, the time division playback type audio reproducing apparatus receives a plurality of digital audio data transmitted in real time via different network paths.

Then, in step 520, the time-division-regenerative-mode audio reproducing apparatus temporarily stores each of the plurality of digital audio data received in step 510 in a plurality of buffers.

Then, in step 530, the time division reproduction type audio reproducing apparatus flushes the digital audio data in the order that the digital audio data buffered in each of the plurality of buffers by the step 520 reaches a specific byte.

Then, in step 540, the time division reproduction type audio reproduction apparatus performs analog conversion of the digital audio data in the order in which it is flushed from the buffer by the step 530. [

Then, in step 550, the time division reproduction type audio reproducing apparatus amplifies the analog audio signal converted in step 540. [

In step 560, the time division reproduction type audio reproducing apparatus radiates the analog audio signal amplified in step 550 through the speaker to the outside.

In this way, according to the present invention, since a plurality of digital audio data transmitted in real time through different network paths are time-divisionally reproduced, it is possible for a listener to feel as if a plurality of sound sources are mixed and reproduced. Can be achieved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. .

INDUSTRIAL APPLICABILITY The present invention is industrially applicable in the field of real-time audio reproduction technology and its application technology.

100: Audio playback device
110: Audio receiver
120:
130: buffer
140: Audio processing unit
150: Amplifier
160: Speaker
170:
200: Switching device
300: Network path
400: Sound source

Claims

Real-time transmission from a plurality of unique addresses composed of a server IP address, which is a sound source source in which digital audio data manually selected by a user exists through a client program, and a client port number automatically selected by the client program An audio receiver for receiving a plurality of digital audio data;
A plurality of buffers for temporarily storing a plurality of digital audio data received through the audio receiver;
An audio processing unit for analog-converting the digital audio data output from the buffer and outputting the analog audio data;
An amplifier for amplifying and outputting an analog audio signal output by the audio processing unit;
A speaker for emitting an analog audio signal amplified by the amplifier to the outside;
A controller for controlling the plurality of digital audio data to be time-divisionally reproduced in units of a specific byte according to the plurality of buffer output orders;
, &Lt; / RTI >
Wherein the server IP addresses included in each of the plurality of unique addresses are the same or different from each other and the client port numbers are different from each other.

delete

The method according to claim 1,
Wherein the time division reproduction type audio reproduction apparatus comprises:
A decoding unit decoding digital audio data output from the buffer;
The apparatus of claim 1, further comprising:

delete

The method according to claim 1 or 3,
Wherein the control unit comprises:
Wherein the digital audio data buffered in each of the plurality of buffers is sequentially reproduced so that the digital audio data to be flushed is sequentially reproduced in the order that the digital audio data reaches the specific byte. Device.

6. The method of claim 5,
Wherein the buffer comprises:
And the digital audio data to be buffered is flushed, and then the time division reproduction interrupt signal is outputted.

The method according to claim 1,
Wherein the audio receiver comprises:
And a plurality of digital audio data is received through a plurality of IP ports.