KR102222912B1 - Device and method to control plurality of speakers through short range wireless communication - Google Patents

Abstract

A user terminal for controlling a plurality of speakers through short-range wireless communication according to an embodiment of the present invention includes a processor and a communicator configured to communicate with external devices in response to the control of the processor. The processor initializes short-range wireless communication with adjacent speakers, allocates speakers to channels of multi-channel audio, and determines delays of speakers by detecting sound output as a test signal is transmitted to each of the speakers, The speakers are configured to selectively buffer audio data corresponding to the allocated channels according to the determined delays, and to transmit the selectively buffered audio data to the speakers.

Description

An apparatus and method for controlling a plurality of speakers through short-range wireless communication TECHNICAL FIELD [DEVICE AND METHOD TO CONTROL PLURALITY OF SPEAKERS THROUGH SHORT RANGE WIRELESS COMMUNICATION]

The present invention relates to an apparatus and method associated with wireless communication, and more particularly, to an apparatus and method for controlling a plurality of speakers through short-range wireless communication.

With the development of electronic technology, various types of electronic devices are being developed and distributed. In particular, the spread of smart electronic devices such as smart phones, tablet PCs, and smart TVs is expanding.

In order to use an electronic device more conveniently, a technology in which an electronic device operates in conjunction with a peripheral device has been developed. For example, a user may play a music file or play a multimedia file by connecting an electronic device to a peripheral device through short-range wireless communication such as Bluetooth. As peripheral devices providing various services become popular, a user may operate an electronic device in conjunction with each peripheral device. However, it is difficult for such a plurality of peripheral devices to form one multi-channel audio and interwork with the electronic device.

The above-described content is only intended to aid in understanding the background art of the technical idea of the present invention, and thus it cannot be understood as the content corresponding to the prior art known to those skilled in the art of the present invention.

An embodiment of the present invention is to provide an apparatus and method capable of providing multi-channel audio by establishing communication with a plurality of speakers.

A user terminal for controlling a plurality of speakers through short-range wireless communication according to an embodiment of the present invention includes: a processor; And a communicator configured to communicate with external devices in response to the control of the processor, wherein the processor initiates the short-range wireless communication with adjacent speakers; Allocating the speakers to channels of multi-channel audio, respectively; Determining delays of the speakers by sensing sound output as a test signal is transmitted to each of the speakers; Selectively buffering audio data corresponding to the channels to which the speakers are allocated according to the determined delays; Configured to transmit the selectively buffered audio data to the speakers.

The processor determines a difference between a time when a first test signal is transmitted to a first speaker among the speakers and a time when a sound output from the first speaker is sensed as a delay of the first speaker, and the speakers It may be configured to determine a difference between a time when the second test signal is transmitted to the second speaker and a time when the sound output from the second speaker is sensed as a delay of the second speaker.

First audio data among the audio data may be transmitted to the first speaker, and second audio data among the audio data may be transmitted to the second speaker. The processor may be configured to buffer at least one of the first audio data and the second audio data according to a difference between the delay of the first speaker and the delay of the second speaker.

The time for each of the audio data to be buffered may be a difference between the longest delay among the delays of the speakers and the delay of the corresponding speaker.

The user terminal may further include a user interface operating in response to the control of the processor, and the processor may be configured to allocate the speakers to the channels in response to a user input received through the user interface.

The processor may be configured to obtain the audio data from an audio source among multimedia data.

The processor is configured to obtain video data from the multimedia data; It may be configured to buffer the reproduction of the video data according to the determined delays.

Another aspect of the present invention relates to a method for controlling a plurality of speakers through short-range wireless communication. The method includes initiating the short-range wireless communication with adjacent speakers; Allocating the speakers to channels of multi-channel audio, respectively; Determining delays of the speakers by sensing sound output as a test signal is transmitted to each of the speakers; Selectively buffering audio data corresponding to the channels to which the speakers are allocated according to the determined delays; And transmitting the selectively buffered audio data to the speakers.

Determining the delays of the speakers may include determining a delay of the corresponding speaker by sequentially detecting sound output as the test signal is transmitted to each of the speakers.

The time for each of the audio data to be buffered may be a difference between the longest delay among the delays of the speakers and the delay of the corresponding speaker.

Initiating the short-range wireless communication may include receiving information of the speakers. In this case, the method includes receiving audio outputs of the speakers from at least one external server using the information of the speakers; And determining recommended channels respectively corresponding to the speakers according to the audio outputs of the speakers.

Allocating the speakers to the respective channels may include allocating the speakers to the recommended channels in response to a user input for approving the recommended channels.

The method may further include buffering reproduction of video data associated with the audio data according to the determined delays.

According to an embodiment of the present invention, an apparatus and method capable of providing multi-channel audio by establishing communication with a plurality of speakers are provided.

1 is a block diagram illustrating a multi-channel audio system according to an embodiment of the present invention.
2 is a block diagram illustrating an embodiment of the user terminal of FIG. 1.
3 is a diagram conceptually showing delays of speakers and buffering times of audio data.
4 is a flowchart illustrating a method of providing multi-channel audio by establishing communication with a plurality of speakers according to an embodiment of the present invention.
5 is a flowchart showing a method of allocating speakers to channels.
6 is a block diagram showing an external server communicating with a user terminal.
7 is a flow chart showing a method of determining delays of speakers.
8 is a block diagram illustrating a computer device suitable for implementing the user terminal of FIG. 2.
9 is a block diagram illustrating a client server capable of communicating with the user terminal of FIG. 8.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be noted that only parts necessary to understand the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to obscure the subject matter of the present invention. In addition, the present invention is not limited to the embodiments described herein and may be embodied in other forms. However, the embodiments described herein are provided to explain in detail enough to be able to easily implement the technical idea of the present invention to those of ordinary skill in the art to which the present invention pertains.

Throughout the specification, when a part is said to be "connected" with another part, this includes not only "directly connected" but also "indirectly connected" with another element interposed therebetween. . The terms used herein are for describing specific embodiments and not for limiting the present invention. Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. "At least any one of X, Y, and Z", and "at least any one selected from the group consisting of X, Y, and Z" means X one, Y one, Z one, or two of X, Y, and Z, or It can be interpreted as any combination beyond that (eg, XYZ, XYY, YZ, ZZ). Herein, "and/or" includes all combinations of one or more of the corresponding elements.

1 is a block diagram illustrating a multi-channel audio system according to an embodiment of the present invention.

Referring to FIG. 1, the multi-channel audio system 100 includes a user terminal 110 and a plurality of speakers 121 to 126.

The user terminal 110 may communicate with a plurality of speakers. Hereinafter, for convenience of description, it is assumed that the first to sixth speakers 121 to 126 are provided.

The user terminal 110 may perform short-range wireless communication with the first to sixth speakers 121 to 126 within a specific coverage. The user terminal 110 may provide multi-channel audio (eg, 5.1-channel audio) using the first to sixth speakers 121 to 126. The user terminal 110 may include an audio codec (CODEC) configured to extract audio data corresponding to a plurality of channels from an audio source. The user terminal 110 may provide multi-channel audio by transmitting the extracted audio data to the first to sixth speakers 121 to 126 to reproduce (or play) the audio.

In embodiments, the user terminal 110 is a computer, UMPC (Ultra Mobile PC), workstation, net-book, PDA (Personal Digital Assistants), portable computer, web tablet, wireless It may be a computer device capable of transmitting and receiving information in a wireless environment, such as a telephone (wireless phone), a mobile phone (mobile phone), a smart phone (smart phone).

Each of the first to sixth speakers 121 to 126 may perform short-range wireless communication with the user terminal 110. Each of the first to sixth speakers 121 to 126 may generate sound according to audio data transmitted from the user terminal 110. The first to sixth speakers 121 to 126 may not be provided as a set for providing multi-channel audio at the time of manufacture and/or sale. At least some of the first to sixth speakers 121 to 126 may be of different models, for example, may be provided by different companies.

According to an embodiment of the present invention, the user terminal 110 may provide multi-channel audio using the first to sixth speakers 121 to 126.

2 is a block diagram illustrating an embodiment of the user terminal of FIG. 1. 3 is a diagram conceptually showing delays of speakers and buffering times of audio data.

1 and 2, the user terminal 200 may include a communicator 210, a memory 220, a content player 230, and first and second interfaces 201 and 202.

The communicator 210 is configured to perform short-range wireless communication with the first to sixth speakers 121 to 126 under the control of the content player 230. For example, the communicator 210 may perform Bluetooth communication with the first to sixth speakers 121 to 126. However, embodiments of the present invention are not limited thereto. For example, short-range wireless communication includes Bluetooth, Wi-Fi communication, LTE D2D (Device-to-Device) communication, NFC (Near Field Communication), Magnetic Secure Transmission. ; MST) communication, Zigbee communication, infrared (IrDA, infrared Data Association) communication, UWB (ultra wideband) communication, Ant+ communication, and/or similar communication using at least one communication protocol. .

The memory 220 is configured to store an audio source 221 and/or a video source 222. In embodiments, the audio source 221 may have a data format suitable for a surround channel such as 5.1 channel. The audio source 221 and the video source 222 may be provided as components of a multimedia file. The memory 220 may operate under the control of the content player 230. The audio source 221 and/or the video source 222 may be read by the content player 230.

The content player 230 may communicate with the communicator 210 and the memory 220 through the first and second interfaces 201 and 202, respectively. In embodiments, the first and second interfaces 201 and 202 may be provided by components of a system bus included in the user terminal 200. The first interface 201 provides a communication interface between the communicator 210 and the content player 230. The second interface 202 provides a communication interface between the memory 220 and the content player 230.

The content player 230 allocates the first to sixth speakers 121 to 126 to channels of multi-channel audio, respectively, and receives audio data corresponding to the channels from the audio source 221 stored in the memory 220. It is configured to extract and transmit each of the extracted audio data to a speaker of a corresponding channel through the communicator 220.

The content player 230 may include a channel setter 231, a sound standard setter 232, a delay discriminator 233, and a controller 234.

The channel setter 231 may operate under the control of the controller 234. The channel setter 231 is configured to initiate short-range wireless communication by communicating with the first to sixth speakers 121 to 126 through the communicator 210. For example, the channel setter 231 may initiate short-range wireless communication by detecting the first to sixth speakers 121 to 126 by performing Bluetooth pairing.

The channel setter 231 allocates the first to sixth speakers 121 to 126 in which short-range wireless communication is initialized to channels of multi-channel audio, respectively. Whether to assign which speaker to each channel can be determined according to various methods. In embodiments, the user terminal 200 may have a user interface including at least one of electronic devices capable of receiving various types of user inputs. The channel setter 231 receives a user input for allocating the first to sixth speakers 121 to 126 to channels through a user interface, and in response to the received user input, the first to sixth speakers ( 121 to 126) can be assigned to each channel. In embodiments, the channel setter 231 communicates with the first to sixth speakers 121 to 126 to find out their audio outputs, and according to the audio outputs, the first to sixth speakers 121 to 126 ) May be determined, and the determined recommended channels may be notified to a user through, for example, a display device. The channel setter 231 may allocate the first to sixth speakers 121 to 126 to the recommended channels, respectively, in response to a user input for approving the recommended channels.

The channel setter 231 may inform the controller 234 and/or the first to sixth speakers 121 to 126 of channels to which the first to sixth speakers 121 to 126 are allocated.

The sound standard setter 232 may operate under the control of the controller 234. The sound standard setter 232 is configured to set the sound standard of multi-channel audio. The sound standard setter 232 may determine the audio codec 235 of the controller 234 suitable for the selected multi-channel audio. For example, when six speakers 121 to 126 are detected by the channel setter 231, the sound standard setter 232 may determine an audio codec suitable for 5.1 channels. The sound standard setter 232 may be provided as a component of the controller 234.

The delay discriminator 233 may operate under the control of the controller 234. The delay discriminator 233 is configured to communicate with the first to sixth speakers 121 to 126 through the communicator 210 to determine delays of the first to sixth speakers 121 to 126. In this case, the delay may mean a response time of a speaker to control of the user terminal 200. For example, the delay may be a time required for sound to be output after transmitting audio data to a speaker.

Delays of each of the first to sixth speakers 121 to 126 may be different. For example, at least some of the first to sixth speakers 121 to 126 may be different models. In this case, if multi-channel audio composed of the first to sixth speakers 121 to 126 is provided without considering the difference between the delays, the sound caused by the multi-channel audio may be unintentionally distorted. In this case, multi-channel audio may have low reliability.

The delay discriminator 233 is configured to determine a delay of a corresponding speaker by transmitting a test signal to each speaker and detecting sound output according to the test signal. The delay discriminator 233 may determine a difference between the time when the test signal is transmitted and the time when the sound output from the speaker is sensed as the delay of the corresponding speaker.

The delay discriminator 233 may further determine sound characteristics of the first to sixth speakers 121 to 126. Sound output in response to specific audio data may be different for each speaker. The delay discriminator 233 may detect sound output from each speaker as a feedback on a specific test signal and determine sound characteristics of the speaker. The controller 234 may process audio data to be transmitted to each of the first to sixth speakers 121 to 126 based on the sound characteristics acquired by the delay discriminator 233.

The controller 234 is configured to control all operations of the content player 230. The controller 234 may include an audio codec 235 configured to read the audio source 221 from the memory 220 and extract audio data corresponding to channels from the audio source 221. The audio codec 235 may be selected by the sound standard setter 232 as described above among a plurality of audio codecs that may be included in the controller 234. The audio codec 235 may decode the audio source 221 using at least one of various algorithms, through which audio data corresponding to channels of multi-channel audio may be obtained.

The controller 234 is configured to selectively buffer and output audio data according to delays of the first to sixth speakers 121 to 126. Audio data to be transmitted to a speaker having a short delay may have a long buffering time, and audio data to be transmitted to a speaker having a long delay may have a short buffering time. The controller 234 may transmit audio data to a corresponding speaker after a delay time equal to the determined buffering time. The controller 234 or the user terminal 200 may include a buffer unit for buffering each audio data.

Referring to FIG. 3, first to sixth delay times DLT1 to DLT6 of the first to sixth speakers 121 to 126 are schematically illustrated. As such, the first to sixth delay times DLT1 to DLT6 may be different from each other. In FIG. 3, the delay time DLT5 of the fifth speaker 125 is the longest, and the delay time DLT2 of the second speaker 122 is the shortest.

The buffering times of audio data may be determined according to the first to sixth delay times DLT1 to DLT6. In embodiments, the buffering time of audio data to be transmitted to each speaker may be determined as a difference between the longest delay time DLT5 among the first to sixth delay times DLT1 to DLT6 and the delay of the corresponding speaker. In FIG. 3, first to sixth buffering times BFT1 to BFT6 of audio data to be transmitted to the first to sixth speakers 121 to 126 are schematically illustrated. The first buffering time BFT1 of the first speaker 121 may be a difference between the fifth delay time DLT5 and the first delay time DLT1. The second buffering time BFT2 of the second speaker 122 may be a difference between the fifth delay time DLT5 and the second delay time DLT2. Buffering times of the remaining speakers can be determined in a similar manner. The fifth buffering time BFT5 of the fifth speaker 125 may be zero because the fifth speaker 125 has the longest delay time DLT5. As shown in FIG. 3, the sum of the delay time and the buffering time of each speaker may be equal to each other.

In this way, the sum of the delay time and the buffering time of each speaker may be the same, and therefore, sound by multi-channel audio configured by the first to sixth speakers 121 to 126 may be output as intended. Therefore, multi-channel audio can have high reliability.

Referring back to FIG. 2, when the audio source 221 is included in the multimedia data together with the video source 222, the video source 222 is required to be played. The controller 234 may read the video source 222 from the memory 220 and reproduce the read video source 222. For example, the user terminal 200 further includes at least one of various devices capable of displaying video, and the controller 234 can play the video source 222 using the device. As another example, the user terminal 200 communicates with an external device capable of displaying video through the communicator 210, and the controller 234 communicates with the device to play the video source 222.

The controller 234 may buffer playback of the video source 222 according to delays of the first to sixth speakers 121 to 126. The delay for reproduction of the video source 222 may be substantially 0, and in this case, the buffering time of the video source 222 may be determined as the longest delay among delays of the first to sixth speakers 121 to 126. I can.

In embodiments, the channel setter 231, the sound standard setter 232, the delay discriminator 233, and the controller 234 are one or more hardware modules, one or more software modules, one or more It may be provided as at least one of more firmware modules, and combinations thereof.

According to an embodiment of the present invention, the user terminal 200 determines delays of speakers 121 to 126 constituting multi-channel audio, buffers audio data according to the determined delays, ). Accordingly, even if the delays of the speakers 121 to 126 are different from each other, the speakers are synchronized with each other due to buffering times, and therefore, sound by multi-channel audio can be output as intended. Therefore, multi-channel audio can reproduce sound with high reliability even if it includes speakers of different models.

4 is a flowchart illustrating a method of providing multi-channel audio by establishing communication with a plurality of speakers according to an embodiment of the present invention.

1 and 4, in step S110, short-range wireless communication with adjacent first to sixth speakers 121 to 126 is initialized. For example, the user terminal 110 may initiate short-range wireless communication by detecting the first to sixth speakers 121 to 126 by performing Bluetooth pairing.

In step S120, the speakers 121 to 126 for which short-range wireless communication is initialized are allocated to channels of multi-channel audio, respectively. The user terminal 110 may allocate the first to sixth speakers 121 to 126 to channels, respectively, in response to a user's selection. In this case, the user terminal 110 may inform the user of a recommended channel suitable for each speaker according to the specifications of the first to sixth speakers 121 to 126. This will be described in more detail with reference to FIG. 5.

In step S130, the sound output as the test signal is transmitted to each speaker is sensed, and delays of the first to sixth speakers 121 to 126 (see DLT1 to DLT6 in FIG. 3) are determined. From this, the user terminal 110 may detect a difference between delays of the first to sixth speakers 121 to 126. This will be described in more detail with reference to FIG. 7.

In embodiments, a server may be provided that stores the delay of each speaker. The delay of the speaker is measured in advance and may be stored in the server according to the measurement result. In this case, the user terminal 110 may access the server to obtain a delay of the speaker.

In step S140, audio data corresponding to channels to which the first to sixth speakers 121 to 126 are allocated are selectively buffered according to the determined delays. The user terminal 110 may include an audio codec (refer to 235 of FIG. 2) configured to extract audio data corresponding to channels from an audio source. The user terminal 110 will determine buffering times (refer to BFT1 to BFT6 in FIG. 3) of audio data according to the determined delays.

In embodiments, when the audio source is included in the multimedia data together with the video source, the user terminal 110 may buffer the playback of the video source 232 according to the determined delays. For example, the buffering time of the video source may be determined as the longest delay among delays of the first to sixth speakers 121 to 126.

In step S150, selectively buffered audio data are transmitted to the first to sixth speakers 121 to 126.

In a method of providing multi-channel audio using speakers according to an embodiment of the present invention, delays of speakers constituting multi-channel audio are determined, audio data is buffered according to the determined delays, and transmitted to the speakers. Accordingly, even if the delays of the speakers are different from each other, the speakers are synchronized with each other by the buffering times, and therefore, sound by multi-channel audio can be output as intended. Therefore, multi-channel audio can reproduce sound with high reliability even if it includes speakers of different models.

5 is a flowchart showing a method of allocating speakers to channels. 6 is a block diagram showing an external server communicating with a user terminal.

1 and 5, in step S210, information on the first to sixth speakers 121 to 126 is received. The user terminal 110 may receive information on the first to sixth speakers 121 to 126 through operations (eg, Bluetooth pairing) for initializing short-range wireless communication. For example, the user terminal 110 may receive model names (or identifiers) of the first to sixth speakers 121 to 126.

In step S220, specifications such as audio outputs of the first to sixth speakers 121 to 126 are received from at least one external server by using information of the first to sixth speakers 121 to 126. As illustrated in FIG. 6, the user terminal 110 may access at least one external server 130 through the network 120 to inquire specifications of the first to sixth speakers 121 to 126.

In step S230, recommended channels corresponding to the first to sixth speakers 121 to 126, respectively, are determined according to the same specifications as the audio outputs of the first to sixth speakers 121 to 126. For example, the user terminal 110 maps two speakers having the relatively highest outputs to the front channels, and maps speakers having lower outputs to the side or rear channels, and has the relatively lowest output. Recommended channels corresponding to the first to sixth speakers 121 to 126 may be determined to map the speaker to an auxiliary channel (eg, a woofer channel). In addition, recommended channels corresponding to each of the first to sixth speakers 121 to 126 may be determined according to at least one of various specifications that are inquired in connection with the first to sixth speakers 121 to 126. . It should be noted that the recommended channels may be determined according to various factors such as the use of multi-channel audio, user preference, and sound to be reproduced. Recommended channels corresponding to the first to sixth speakers 121 to 126 may be displayed through the display device of the user terminal 110.

7 is a flow chart showing a method of determining delays of speakers.

Referring to FIGS. 1 to 7, in step S310, the sound output as the nth test signal is transmitted to the nth speaker is sensed to measure the delay of the nth speaker (n is a positive integer). In step S320, step S330 is performed depending on whether it is the last speaker. In step S330, steps S310 and S320 are performed again for the next speaker. In this way, the reliability of the measured delays can be improved by independently performing the measurement of the delays of the speakers in divided time periods.

8 is a block diagram illustrating a computer device suitable for implementing the user terminal of FIG. 2.

Referring to FIG. 8, the user terminal 1000 includes a communication device 1100, an audio/video (A/V) input device 1200, a user interface 1300, a display device 1400, a nonvolatile storage medium 1500, and A processor 1600, and a system memory 1700.

The communication unit 1100 is configured to transmit a radio signal to at least one of a base station, an external server, and an external terminal on a mobile communication network. In this case, the wireless signal may include a voice call signal, a video call signal, or various types of data according to transmission and reception of text/multimedia messages. Further, the communicator 1100 is configured to access the wireless Internet. Further, the communicator 1100 is configured to perform short-range wireless communication, where the short-range wireless communication includes Bluetooth, Wi-Fi communication, LTE D2D communication, NFC, magnetic secure transmission communication, Zigbee communication, infrared communication, UWB communication, Ant+ communication, and / Or may include communication using at least one communication protocol among similar ones. The communicator 1100 may function as the communicator 210 of FIG. 2.

The A/V input unit 1200 is for inputting an audio signal and a video signal, and may include a camera. The camera processes the image obtained by the image sensor. The image processed by the camera may be stored in the system memory 1700 or transmitted to the outside through the communicator 1100.

The user interface 1300 receives a user input for controlling operations of the user terminal 1000 or the processor 1600. The user interface 1300 may include a key pad, a dome switch, a touch pad (positive pressure/electrostatic), a jog wheel, a jog switch, a finger mouse, and the like. In particular, when the touch pad is integrally formed with the display device 1400, it may be referred to as a touch screen. In this case, the user interface 1300 may be visualized by the display device 1400.

The display device 1400 operates in response to the control of the processor 1600. The display device 1400 displays information processed by the user terminal 1000 or the processor 1600. For example, the display device 1400 may display an image under the control of the processor 1600. When the display device 1400 is integrally formed with a touch pad to configure a touch screen, the display device 1400 may visualize the user interface 1300.

The display device 1400 may include at least one of various types of display devices such as a liquid crystal display, an organic light-emitting diode display, and a flexible display.

The nonvolatile storage medium 1500 may be at least one of a flash memory type, a hard disk type, and a multimedia card. The nonvolatile storage medium 1500 is configured to write and read data in response to the control of the processor 1600. The nonvolatile storage medium 1500 may function as the memory 220 of FIG. 2.

An interface for connecting the communication unit 1100, A/V input unit 1200, user interface 1300, display device 1400, nonvolatile storage medium 1500, processor 1600, and system memory 1700 to each other is provided. A system bus to provide may be further provided. In this case, the system bus may be provided as the first and second interfaces 201 and 202 of FIG. 2.

The processor 1600 may include either a general-purpose or a dedicated processor, and a communication unit 1100, an A/V input unit 1200, a user interface 1300, a display device 1400, and a nonvolatile storage medium 1500 , And operations of the system memory 1700 are controlled.

The processor 1600 loads program codes from the nonvolatile storage medium 1500 into the system memory 1700 and executes the loaded program codes to perform operations described with reference to FIGS. 2, 4, 5, and 7. And/or functions. When executed by the processor 1600, the processor 1600 loads the content playback module 1710, which performs the functions of the content player 230 described with reference to FIG. 2, into the system memory 1700, and plays the loaded content. The module 1710 can be executed. For example, the content playback module 1710, when executed by the processor 1600, commands for performing functions of the channel setter 231 and commands for performing the functions of the sound standard setter 232 And instructions for performing functions of the delay discriminator 233.

In embodiments, the system memory 1700 may be provided as a working memory of the processor 1600. In FIG. 8, the system memory 1700 is shown as a separate component from the processor 1600, but this is exemplary, and at least a portion of the system memory 1700 may be integrated into the processor 1600. In embodiments, the system memory 1700 may be provided as a buffer memory. The system memory 1700 may function as the memory 220 of FIG. 2.

The system memory 1700 may include at least one of random access memory (RAM), read only memory (ROM), and other types of computer-readable storage media.

9 is a block diagram illustrating a client server capable of communicating with the user terminal of FIG. 8.

Program codes executed by the user terminal 1000 of FIG. 8 may be provided from the client server 2000. Referring to FIG. 9, the client server 2000 may include a communicator 2100, a processor 2200, and a database 2300. The communicator 2100 may communicate with the user terminal 1000 through a network. The database 2300 includes program codes that can be executed by the user terminal 1000 and/or the processor 1600 of FIG. 8, for example, the content playback module 1710 or the content playback module 1710 of FIG. You can save the application application. The processor 2200 may provide program codes stored in the database 2300 to the user terminal 1000 through the communicator 2100 in response to a request from the user terminal 1000. Program codes may be installed and executed in the user terminal 1000.

Although specific embodiments and application examples have been described herein, these are provided only to aid in a more general understanding of the present invention, and the present invention is not limited to the above embodiments, and those with ordinary knowledge in the field to which the present invention pertains. As it grows, various modifications and variations are possible from this description.

Therefore, the spirit of the present invention is limited to the described embodiments and should not be defined, and all things that are equivalent or equivalent to the claims as well as the claims to be described later fall within the scope of the spirit of the present invention. .

210: communicator
220: memory
230: content player
231: channel setter
232: sound standard setter
233: delay discriminator
234: controller

Claims (13)

In the user terminal for controlling a plurality of speakers through short-range wireless communication:
Processor; And
Comprising a communicator configured to communicate with external devices in response to the control of the processor,
The processor,
Initiating the short-range wireless communication with adjacent speakers;
Allocating the speakers to channels of multi-channel audio, respectively;
Determining delays of the speakers by sensing sound output as a test signal is transmitted to each of the speakers;
Selectively buffering audio data corresponding to the channels to which the speakers are allocated according to the determined delays;
Configured to transmit the selectively buffered audio data to the speakers so that the speakers receive the audio data after different buffering times,
The processor,
The difference between a time when the first test audio data is transmitted as the test signal to a first speaker among the speakers and a time when the first speaker detects a sound output in response to the first test audio data is determined as the first Is determined by the delay of the speaker,
The second difference between the time when the second test audio data is transmitted as the test signal to the second speaker among the speakers and the time when the sound output by the second speaker in response to the second test audio data is sensed. User terminal configured to determine the delay of the speaker. delete The method of claim 1,
First audio data among the audio data is transmitted to the first speaker, and second audio data among the audio data is transmitted to the second speaker,
The processor,
A user terminal configured to buffer at least one of the first audio data and the second audio data according to a difference between the delay of the first speaker and the delay of the second speaker. The method of claim 1,
The time when each of the audio data is buffered is a difference between the longest delay among the delays of the speakers and the delay of the corresponding speaker. The method of claim 1,
Further comprising a user interface operating in response to the control of the processor,
The processor,
A user terminal configured to allocate the speakers to the channels in response to a user input received through the user interface. The method of claim 1,
The processor,
A user terminal configured to obtain the audio data from an audio source among multimedia data. The method of claim 6,
The processor,
Obtaining video data from the multimedia data;
A user terminal configured to buffer the reproduction of the video data according to the determined delays. In the method for controlling a plurality of speakers through short-range wireless communication:
Initiating the short-range wireless communication with adjacent speakers;
Allocating the speakers to channels of multi-channel audio, respectively;
Determining delays of the speakers by sensing sound output as test audio data is transmitted to each of the speakers;
Selectively buffering audio data corresponding to the channels to which the speakers are allocated according to the determined delays; And
Transmitting the selectively buffered audio data to the speakers such that the speakers receive the audio data after different buffering times,
The step of determining the delays of the speakers is sequentially for each of the speakers, between a time when the test audio data is transmitted to the corresponding speaker and a time when the corresponding speaker detects a sound output in response to the test audio data. And determining the difference as a delay of the corresponding speaker. delete The method of claim 8,
The time for each of the audio data to be buffered is a difference between the longest delay among the delays of the speakers and the delay of the corresponding speaker. The method of claim 8,
Initiating the short-range wireless communication includes receiving information of the speakers,
Receiving audio outputs of the speakers from at least one external server using the information of the speakers; And
And determining recommended channels respectively corresponding to the speakers according to the audio outputs of the speakers. The method of claim 11,
Allocating the speakers to respective channels includes allocating the speakers to the recommended channels in response to a user input for approving the recommended channels. The method of claim 8,
And buffering reproduction of video data associated with the audio data according to the determined delays.

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