JP2014230241A - Radio program distribution system, radio program cooperative processing method and radio program cooperative processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To acquire event information according to a method independent of the kind of media or a reception protocol.SOLUTION: In a radio program distribution system 1 in which a user terminal 70 receives and outputs audio of a radio program distributed via a communication line 80, upon receiving stereo audio distributed via the communication line 80, the user terminal 70 outputs program audio included in the stereo audio, monitors a change in volume in instruction audio included in the stereo audio, transmits a transmission request of an operation instruction to an instruction server 50 when the change in volume is detected, and executes a predetermined operation on the basis of contents of the operation instruction transmitted from the instruction servicer 50.

Description

  The present invention relates to a radio program distribution system that realizes so-called Internet radio that distributes radio programs via the Internet, a radio program link processing method that is executed in this system, and a radio program link processing program that executes this method. In particular, a radio program distribution system, a radio program interlocking processing method, and a radio program interlocking process in which a user terminal is remotely operated in accordance with the progress of a radio program being distributed to display an image related to the contents of the radio program. Regarding the program.

In recent years, portable terminals such as smartphones and tablet terminals have been expanded in various functions to meet various needs from users. For example, in addition to the conventional call function and mail function, there are a wide variety of functions such as watching TV programs using 1Seg, accessing websites by connecting to the Internet, camera functions, and electronic book browsing functions. It is feasible.
Some portable terminals can receive and output so-called Internet radio that listens to contents of radio programs streamed via the Internet. In this method, the sound of a radio program is not transmitted by radio waves, but is converted into digital data, and the sound data is streamed and delivered to a user's portable terminal via the Internet for sound output.

Various technologies relating to the Internet radio have been proposed.
For example, in addition to the broadcast signal of a radio program, additional information including the title and singer name of a song adopted in the program is generated, and this additional information is added to the broadcast signal and distributed (for example, patents) Reference 1).
In addition, when the broadcast time of each scene of the program and the address of the information site that provides information about each scene are associated with each other and registered in the information providing server, and the information provision request is received from the user terminal, the received time There is one that notifies a user terminal of an address corresponding to (see, for example, Patent Document 2).

JP 2000-115093 A JP 2002-032396 A

However, the conventional Internet radio technology has the following problems.
Mobile terminals represented by smartphones and tablet terminals have different types of media that can be played back depending on the manufacturer and the age of development.
In addition, mobile terminals have different reception protocols for streaming media via the network depending on the manufacturer and the age of development.
Regarding the difference in media that can be played back, the problem is being solved because a technology that enables playback by converting after receiving data has been established to some extent.
In addition, regarding the difference in streaming media reception protocol, the problem is almost solved by performing protocol conversion for each terminal on the distribution system.

However, since data conversion is performed for each portable terminal, information other than the media, for example, “text information such as subtitles” and “event information synchronized with media playback” may be included in the streaming media. It was difficult.
This is because, in order to maintain other than media information at the time of conversion, a new protocol must be formulated for each portable terminal, which is not realistic considering future development costs.

  The present invention has been made to solve the above-described problems, and provides a radio program distribution system, a radio program link processing method, and a radio program link capable of acquiring event information by a method that does not depend on the type of media or the reception protocol. The purpose is to provide a processing program.

  In order to achieve this object, a radio program distribution system according to the present invention is a radio program distribution system that distributes audio of a radio program via a communication line. A mixer for adjustment, an encoding device for encoding program audio sent from the mixer, a distribution server for distributing program audio sent from the encoding device via a communication line, and a distribution server A user terminal that receives and outputs the distributed program audio; and an instruction server that stores an operation instruction created in a predetermined language. The mixer includes an input terminal for inputting the program audio, and a predetermined timing. Mix the volume control means to insert a weak sound state with almost zero volume into the instruction voice with a constant volume, mix the program sound and the instruction sound, and A mixing unit that obtains audio, an output unit that transmits stereo audio to the encoding device, the distribution server distributes the stereo audio to the user terminal, the user terminal receives the stereo audio, and a program A voice output unit that outputs voice; and a control unit that monitors a change in volume of the instruction voice and detects a change in the volume, and transmits a request to send an operation instruction to the instruction server. When the operation instruction transmission request is received, the operation instruction is transmitted to the user terminal, and the control unit of the user terminal is configured to execute a predetermined operation based on the content of the operation instruction.

  The radio program link processing method of the present invention is a radio program link processing method that distributes audio of a radio program via a communication line, and the instruction server stores an operation instruction created in a predetermined language. Processing, processing in which the mixer inputs the audio of the radio program as program audio, processing in which the mixer adjusts the volume of the program audio, and the mixer converts the sound to be instructed with a constant volume at a predetermined timing, A process of inserting a low-pitched sound state whose volume is almost zero, a process in which the mixer mixes the program sound and the instruction sound to obtain stereo sound, a process in which the mixer transmits stereo sound to the encoding apparatus, and an encoding apparatus However, the process of encoding the program audio sent from the mixer and transmitting it to the distribution server, and the distribution server Processing to distribute audio to the user terminal via the communication line, and when the user terminal receives stereo audio, the program audio is output and the change in the volume of the instruction audio is monitored, and the volume changes. When this is detected, a process of transmitting an operation instruction transmission request to the instruction server, a process of transmitting an operation instruction to the user terminal when the instruction server receives the operation instruction transmission request, and a user terminal And a method of executing a predetermined operation based on the contents.

  A radio program interlocking processing program of the present invention is a radio program interlocking processing program for causing a radio program distribution system to execute a step of distributing audio of a radio program via a communication line. A step of saving operation instructions created in the language, a step in which the mixer inputs the audio of the radio program as program audio, a step in which the mixer adjusts the volume of the program audio, and a mixer at a predetermined timing , A step of inserting a weak sound state with a volume of almost zero into the instruction sound having a constant volume, a step of mixing the program sound and the instruction sound to obtain a stereo sound, and a mixer having a stereo sound Are transmitted to the encoding device, and the encoding device encodes the program audio sent from the mixer. Then, the step of transmitting to the distribution server, the step of distributing the stereo sound sent from the encoding device to the user terminal via the communication line, and the user terminal receiving the stereo sound, The program audio is output, the change in the volume of the instruction voice is monitored, and when the change in the volume is detected, a step of transmitting an operation instruction transmission request to the instruction server, and the instruction server transmits the operation instruction When the request is received, the radio program distribution system performs a step of transmitting an operation instruction to the user terminal and a step of the user terminal executing a predetermined operation based on the content of the operation instruction.

  A radio program interlocking processing program of the present invention is a radio program interlocking processing program for causing a user terminal to execute a step of outputting sound of a radio program distributed via a communication line, When the stereo sound distributed via is received, the program sound included in the stereo sound is output and the change in the sound volume of the instruction sound included in the stereo sound is monitored. When the change is detected, the user terminal is caused to execute a step of transmitting an operation instruction transmission request to the instruction server and a step of executing a predetermined operation based on the content of the operation instruction transmitted from the instruction server. As a configuration.

According to the radio program distribution system, radio program link processing method, and radio program link processing program of the present invention, the change in the volume of the instruction voice transmitted from the distribution server is adopted as the event occurrence trigger. Event information can be acquired by a method that does not depend on the type or reception protocol.
Further, when the user terminal receives the trigger, it is determined that an event has occurred, the operation instruction is received from the instruction server, and the process described in the operation instruction is executed. It is possible to cause the user terminal to execute processing related to the radio program described in.

It is a schematic block diagram which shows the structure of the radio program delivery system in embodiment of this invention. It is a block diagram which shows the structure of an audio mixer. It is a block diagram which shows the structure of a compression encoding apparatus. It is a block diagram which shows the structure of an instruction | indication server. It is a figure which shows the content of an operation instruction. It is a block diagram which shows the structure of a user terminal. It is a figure which shows the content of a program structure table. It is a front view which shows a mode that the display content switches automatically in the display part of a user terminal. It is a schematic diagram for demonstrating operation | movement of a radio program delivery system. It is a schematic diagram for demonstrating other operation | movement of a radio program delivery system. It is an operation | movement procedure figure which shows operation | movement of a radio program delivery system when the application for streaming delivery is started in a user terminal. It is an operation | movement procedure figure which shows operation | movement of the radio program delivery system after starting the audio | voice output of the radio program by streaming delivery.

  Hereinafter, preferred embodiments of a radio program distribution system, a radio program linkage processing method, and a radio program linkage processing program according to the present invention will be described with reference to the drawings.

[Radio program distribution system]
First, an embodiment of a radio program distribution system of the present invention will be described with reference to FIG.
FIG. 1 is a schematic configuration diagram showing the configuration of the radio program distribution system of the present embodiment.

  As shown in the figure, the radio program distribution system 1 includes an audio mixer 10, a microphone 20, a compression encoding device 30, a distribution server 40, an instruction server 50, a file server 60, and a user terminal 70. ing. The microphone 20 is connected to the audio mixer 10, the audio mixer 10 and the compression encoding device 30 are connected via a predetermined cable, and the compression encoding device 30 and the distribution server 40 are predetermined. The distribution server 40, the instruction server 50, the file server 60, and the user terminal 70 are connected to each other via a communication line such as the Internet 80 so as to be capable of electrical communication.

Here, the audio mixer 10 inputs one or a plurality of sounds, and performs timbre processing or track sound addition by electrical processing in an analog circuit or arithmetic operation in a digital circuit, and outputs them to various sound track formats. This is an audio device for mixing.
The audio mixer 10 is a device used in a recording studio of the radio broadcasting station A, and is provided with a plurality of channels (at least two in this embodiment) for inputting sound.

At least one of the plurality of channels is a monaural channel, and a microphone 20 installed in the recording studio of the radio broadcast station A is connected thereto. Specifically, the plug connected to the tip of the cable connected to the microphone 20 is connected (plugged in) to the monaural channel input terminal 11 provided in the audio mixer 10 (see FIGS. 1 and 2).
The microphone 20 inputs a sound emitted from a performer of a radio program (for example, a performer such as a DJ, an announcer, or a guest) and sends it to the monaural channel input terminal 11 of the audio mixer 10.
In addition, the microphone 20 may be one or plural. When a plurality of microphones 20 are used, the audio mixer 10 needs to be provided with as many monaural channels and input terminals 11 as the number of microphones 20.

Of the plurality of channels provided in the audio mixer 10, an instruction voice having a constant volume is input to the other channel.
The instruction sound is generated by a sine wave signal generator (not shown) that is a device that generates a sine wave signal having a single frequency, is output from the sine wave signal generator, and is input to the input terminal 11 of the audio mixer 10. Is input.
The channel of the input terminal 11 of the audio mixer 10 for inputting the instruction audio is one audio line (synonymous with monaural channel).

When the audio mixer 10 itself has a function of generating the instruction sound, it is not necessary to connect a sine wave signal generator to the input terminal 11 of the audio mixer 10. In this case, the audio mixer 10 can adjust the volume, set the sound localization, etc., as will be described later, with respect to the instruction sound generated by itself. However, in this embodiment, it is assumed that the sine wave signal generator generates and outputs an instruction sound, and the input terminal 11 of the audio mixer 10 inputs the instruction sound.
As described above, the audio mixer 10 acquires the instruction sound when the input terminal 11 inputs from the sine wave signal generator or when it is generated by itself.

  As shown in FIG. 2, the audio mixer 10 mixes the sound of each channel with the volume adjusting means 12 for adjusting the volume of the sound input from the input terminal 11, the sound localization means 13 for setting the localization of the sound. Then, the mixer 14 for obtaining stereo sound, the output volume adjusting means 15 for adjusting the volume of the stereo sound after mixing, and the stereo sound after the volume is adjusted by the output volume adjusting means 15 are output to the output terminal 17. And an output unit 16 for outputting to the outside.

As a configuration of the volume adjusting unit 12, the audio mixer 10 includes a fader 121 that is artificially operated to adjust the volume of the sound input from the input terminal 11, and the sound corresponding to the value indicated by the fader 121. Is provided for each channel.
The fader 121 includes a slide type and a rotary type. A person engaged in the production of a radio program, for example, an audio engineer, operates the fader 121 (slide for the slide type, and rotation for the rotary type). Adjust the volume of the sound.
Further, generally, numerical values such as 0 [db], −30 [db], and −∞ [db] are indicated on the side or the periphery of the fader 121 as volume adjustment values. However, by operating the fader 121, the increase / decrease of the volume of the sound can be adjusted.
When receiving the sound input to the input terminal 11, the volume adjusting unit 122 adjusts the volume of this sound according to the value indicated by the fader 121, and sends it to the sound localization means 13.

The voice engineer operates the fader 121 to individually adjust the volume of the sound input through the microphone 20 and the volume of the instruction voice sent from the sine wave signal generator.
However, the volume of the instruction voice is adjusted between an adjustment level (for example, 0 [db]) corresponding to a constant volume and an adjustment level (for example, −∞ [db]) at which the volume is almost zero (0). Perform by reciprocating operation. When the position of the fader 121 is at an adjustment level (for example, 0 [db]) corresponding to a constant volume, the volume adjustment unit 122 performs sound localization while keeping the volume of the instruction voice at a constant volume. Send to means 13. On the other hand, when the position of fader 121 is at an adjustment level (for example, −∞ [db]) corresponding to a volume of almost zero (0), volume adjustment unit 122 sets the volume of the instruction voice to almost zero. The sound is converted and sent to the sound localization means 13. As a result, the instruction voice is output from the volume adjusting unit 12 and sent to the sound localization unit 13 as a signal changing between two levels of a constant volume and almost zero (0).

Since the volume of the instruction voice is adjusted by operating the fader 121, the fader 121 is operated to an adjustment level (for example, −∞ [db]) corresponding to a volume of almost zero (0). However, it cannot be said that the volume of the instruction voice is completely zero. However, since the change in the volume of the instruction voice may be detected by the user terminal 70 as a trigger for the occurrence of the event, the volume of the instruction voice only needs to be equal to or lower than a predetermined threshold. As described above, a state in which the volume of the instruction voice is a volume equal to or lower than a predetermined threshold by operating the fader 121 is referred to as a weak sound state.
In this embodiment, the volume of the instruction voice is adjusted by the fader 121. For example, when the audio mixer 10 is provided with a mute button for mute for each channel, The mute button can be operated to mute the instruction voice.

As a configuration of the sound localization means 13, the audio mixer 10 includes an adjustment knob 131 for PAN (pan) that is artificially operated to set the sound localization, and a position indicated by the adjustment knob 131. A sound localization unit 132 for setting the sound localization is provided for each channel.
The adjustment knob 131 is generally a rotary knob. Turning it to the left sets the sound localization to L (left), and turning it to the right sets the sound localization to R (right). can do.

The sound engineer rotates the adjustment knob 131 in either the L (left) or R (right) direction, thereby changing the sound input for each channel to either L (left) or R (right). It can be distributed to such localization.
Here, the adjustment knob 131 is set to L (left) for a monaural channel through which sound is input through the microphone 20. When there are a plurality of monaural channels through which sound is input through the microphone 20, the adjustment knob 131 is set to L (left) for all of the plurality of monaural channels. Thereby, the sound input through the microphone 20 is output as an L channel of stereo sound when output from the audio mixer 10.
On the other hand, the adjustment knob 131 is set to R (right) for the monaural channel to which the instruction sound is input. As a result, the instruction sound is output as a stereo sound R channel when output from the audio mixer 10.
When the sound localization unit 132 receives the sound sent from the volume adjusting unit 12, the sound localization unit 132 sets the localization of this sound according to the localization indicated by the adjustment knob 131, and sends it to the mixing unit 14.

The mixing unit 14 is an audio signal in which the volume is adjusted by the volume adjusting unit 12 and the sound localization is set to L (left) by the sound localization unit 13 and the instruction is set to have the sound localization set to R (right). The sound is mixed and sent to the output volume adjusting means 15 as analog stereo sound.
The output volume adjusting means 15 includes a fader 151 that is artificially operated to adjust the volume of analog stereo sound, and a volume adjusting unit 152 that adjusts the volume of the stereo sound according to the value indicated by the fader 151. It has. The sound engineer can adjust the volume of the analog stereo sound by operating the fader 151. When receiving the analog stereo sound sent from the mixing unit 14, the volume adjusting unit 152 adjusts the volume of the stereo sound according to the value indicated by the fader 151, and sends it to the output unit 16.

The output unit 16 outputs analog stereo sound from the output terminal 17 to the outside.
A compression encoding device 30 is connected to the output terminal 17 via a cable. As a result, the analog stereo sound output from the output terminal 17 is transmitted to the compression encoding device 30.
Note that some audio mixers 10 include an adjustment knob for setting the sound localization of the analog stereo sound output from the mixing unit 14, but in this embodiment, the analog stereo sound is converted into analog stereo sound. On the other hand, since the sound localization is not set, it is not necessary to provide the adjustment knob as a configuration of the audio mixer 10. However, an audio mixer provided with the adjustment knob can be used as the audio mixer 10 of the present embodiment.

The compression encoding device 30 is a computer that operates under program control, and is an information processing device used in the recording studio of the radio broadcast station A.
The compression encoding device 30 is preinstalled with digital content production / distribution software (for example, Windows Media encoder) (Windows is a registered trademark), and is output from the output terminal 17 of the audio mixer 10. Stereo audio is input, an analog audio signal of the stereo audio is encoded (encoded), digitized, compressed, and streamed to the distribution server 40. At this time, among the sounds included in the stereo sound, the program sound (the sound input from the microphone 20) is transmitted on the L channel, and the instruction sound is transmitted on the R channel.

  Further, as shown in FIG. 3, the compression encoding apparatus 30 includes an audio input unit 31 for inputting a stereo audio signal output from the audio mixer 10, and an audio signal or digital content input by the audio input unit 31. Storage unit 32 for storing production / distribution software, audio transmission unit 33 for streaming transmission of audio signals to distribution server 40, and input units such as a keyboard and a mouse operated by a person engaged in the production of a radio program 34, a display unit 35 that displays predetermined data and a screen, and a control unit 36 that controls each component of the compression encoding device 30 in order to execute the functions of the compression encoding device 30.

  Note that the control unit 36 controls the encoding (encoding) and compression of the stereo audio signal and the streaming transmission. That is, the control unit 36 reads out and executes the digital content production / distribution software stored in the storage unit 32, and encodes (encodes) the audio signal of the stereo audio input by the audio input unit 31. The digital stereo sound is digitized and compressed, and this digital stereo sound is streamed and transmitted to the distribution server 40 via the sound transmitting unit 33.

The distribution server 40 is a computer that operates under program control, and is an information processing apparatus installed on the Internet 80.
The distribution server 40 receives a digital stereo audio signal transmitted from the compression encoding apparatus 30 by streaming. When the distribution server 40 receives the Internet radio streaming distribution start request transmitted from the user terminal 70, the distribution server 40 receives an MMS (Microsoft Media Server) (Microsoft is a registered trademark) or RTSP (Real Time Streaming).
Using a streaming protocol such as Protocol), the digital stereo audio signal is optimized to be streamable, and after the file is protected, control is performed to distribute it to the user terminal 70 via the Internet 80.
The distribution server 40 can be installed in the recording studio of the radio broadcast station A as shown in FIG. However, the distribution server 40 only needs to be placed in an environment that can be connected to the Internet 80, and is not necessarily installed in the recording studio.

The instruction server 50 is a computer that operates under program control, stores an operation instruction in which the operation content of the user terminal 70 is described, and an instruction file request (XML) that is a transmission request for requesting transmission of the operation instruction. When the request is received from the user terminal 70, the instruction file including the operation instruction is transmitted to the user terminal 70 that has transmitted the instruction file request.
Specifically, as illustrated in FIG. 4, the instruction server 50 includes a communication unit 51 that is communicably connected to the user terminal 70 via the Internet 80, and a program and data for executing the functions of the instruction server 50. , A storage unit 52 that stores operation instructions, a control unit 53 that controls each component of the instruction server 50 in order to execute the functions of the instruction server 50, and inputs such as a keyboard and a mouse that can be operated artificially Part 54.

  The operation instruction stored in the storage unit 52 describes the content of the operation to be executed by the user terminal 70. Specifically, for example, as shown in FIGS. 5A to 5E, a URL for specifying the address of the web page to be acquired (FIG. 5A), stop of streaming reception of audio signals of radio programs, Playing back music stored in the user terminal 70, obtaining a new operation instruction (XML) after the end of playback (FIG. (B)), and restarting streaming reception of audio signals of radio programs (FIG. (C)). There are activation of a specific application installed in the user terminal 70 (FIG. (D)), change of an operation instruction (XML) acquisition destination (FIG. (E)), and the like. These operation instructions are described in a predetermined language, for example, XML format.

The operation instructions are proposed by a person engaged in the production of a radio program (for example, a constituent writer or a director), and created by a system technical person in charge who manages, constructs, and operates the radio program distribution system 1. The
The operation instruction is created by operating the input unit 54 of the instruction server 50, and the created operation instruction is stored in the storage unit 52 of the instruction server 50. The operation instruction is created by the compression encoding device 30 by operating the input unit 34 of the compression encoding device 30 and stored in the storage unit 32, and is transmitted to the instruction server 50 via the Internet 80. Can also be stored in the storage unit 52.

  When the instruction file request transmitted from the user terminal 70 is received by the communication unit 51, the control unit 53 retrieves the instruction file including the operation instruction from the storage unit 52 and transmits the instruction file request. 70, via the communication unit 51 and the Internet 80.

The file server 60 is a computer that operates under program control, and includes a storage unit that stores various web pages.
The file server 60 includes a communication unit that communicates with the user terminal 70 via the Internet 80, and a control unit that controls each component of the file server 60 in order to execute the function of the file server 60. I have. When the communication unit receives a web page request (URL request), which is a transmission request for requesting acquisition of a web page, from the user terminal 70, the control unit selects the web page specified by the URL included in the web page request. The data is taken out from the storage unit and transmitted to the user terminal 70 that has transmitted the web page request.

The web page stored in the storage unit of the file server 60 is composed of HTML (or XHTML), a style sheet, and image data, and includes images (still images), videos (moving images) related to the contents of radio programs, It contains texts and is created so that it can be specified by URL.
This web page may be created by a person who is engaged in the production of a radio program (for example, a director) or a system engineer, or may be created by another person.
The web page can be created by operating an input unit such as a keyboard connected to the file server 60, for example. Further, the web page is created by the compression encoding device 30 by operating the input unit 34 of the compression encoding device 30 and transmitted to the file server 60 via the Internet 80 and stored in the storage unit. You can also.

  The user terminal 70 is a portable information processing apparatus that can be possessed by a user. Specific examples of the user terminal 70 include a smartphone, a tablet terminal, a mobile phone, and a PHS. The user terminal 70 also includes a stationary information processing apparatus, such as a desktop personal computer or a notebook personal computer.

As illustrated in FIG. 6, the user terminal 70 includes a communication unit 71, a storage unit 72, an audio output unit 73, an input unit 74, a display unit 75, and a control unit 76.
The communication unit 71 is communicably connected to the distribution server 40, the instruction server 50, and the file server 60 via the Internet 80. The communication unit 71 can be connected to the Internet 80 wirelessly or by wire.

The storage unit 72 stores programs and data for executing the functions of the user terminal 70.
The storage unit 72 is preinstalled with a dedicated application for executing Internet radio reception and audio output and a radio program linkage processing method described later. Further, the storage unit 72 stores a web browser for displaying a web page on the display unit 75.

The audio output unit 73 is a functional unit for outputting predetermined sound to the outside, and includes an adjustment unit for adjusting output volume and the like and a speaker for outputting the sound to the outside.
The input unit 74 is an operation function unit that can be operated by the user of the user terminal 70, such as a hardware key attached to the housing of the user terminal 70 and a software key displayed on the screen of the display unit 75. By operating the input unit 74, it is possible to start an application, perform an operation during execution of a program, input various data, make settings, and the like.

The display unit 75 is a functional unit having a screen display function such as a liquid crystal display, and includes images relating to various functions of the user terminal 70 such as a predetermined operation screen, a television image, a mail creation display screen, and a game image, Displays images related to the application inside.
Moreover, the display part 75 can display a web page by starting a web browser.

The control unit 76 controls each component of the user terminal 70 in order to execute various functions of the user terminal 70.
In addition, when the dedicated application is activated, the control unit 76, as shown in FIG. 6, includes a radio output control unit 761, an event monitoring unit 762, an instruction file request transmission / reception unit 763, and an operation instruction execution unit 764. It functions as a control unit having

  The radio output control unit 761 distributes an Internet radio distribution start request via the communication unit 71 when a dedicated application is activated by an operation of the input unit 74 by a user and an operation to start listening to the Internet radio is performed. Send to server 40. Then, when the Internet radio distribution is started and the digital stereo audio signal distributed from the distribution server 40 is received by the communication unit 71 via the Internet 80, the radio output control unit 761 receives the stereo audio signal. The L channel and R channel are separated, the L channel program audio is sent to the audio output unit 73 for monaural output, and the R channel instruction audio is sent to the event monitoring unit 762.

When the event monitoring unit 762 receives the R channel instruction sound from the radio output control unit 761, the event monitoring unit 762 monitors the change in the sound volume of the instruction sound.
As a result of monitoring, when the volume of the instruction voice is constant, it is determined that no event has occurred.
On the other hand, when it is detected that the sound volume of the instruction voice has changed from a constant sound volume to a weak sound state having a substantially zero sound volume, it is determined that an event has occurred.

  The instruction file request transmission / reception unit 763 receives an instruction file request (XML) when a dedicated application is activated by an operation of the input unit 74 by the user or when it is determined that an event has occurred in the event monitoring unit 762. Request) is transmitted to the instruction server 50 via the communication unit 71. When the communication unit 71 receives the instruction file transmitted from the instruction server 50, the instruction file request transmission / reception unit 763 stores the operation instruction included in the instruction file in the storage unit 72.

The operation instruction execution unit 764 analyzes the content of the operation instruction included in the instruction file transmitted from the instruction server 50, and executes processing according to the content.
For example, as shown in FIG. 5A, when the content of the operation instruction is a URL designation, the web page designated by the URL is acquired from the file server 60 and displayed on the display unit 75. In addition, as shown in FIG. 5B, the content of the operation instruction is the stop of streaming reception of the audio signal of the radio program, the reproduction of the music built in the user terminal 70, and the new operation instruction after the end of the reproduction. In the case of acquisition, according to these contents, each part of the user terminal 70 is controlled to stop the streaming reception of the audio signal of the radio program, to reproduce the music built in the user terminal 70, and to perform a new after the end of the reproduction. An operation instruction (XML) is acquired.
Furthermore, when the content of the operation instruction is resumption of streaming reception of the audio signal of the radio program as shown in FIG. 5C, the streaming reception of the audio signal of the radio program is resumed. Further, when the content of the operation instruction is activation of a predetermined application installed in the user terminal 70 as shown in FIG. 4D, the predetermined application installed in the user terminal 70 is activated. . Further, when the content of the operation instruction is a change in the acquisition destination of the operation instruction (XML) as shown in FIG. 5E, the acquisition destination of the operation instruction (XML) is described in the operation instruction. Change to the existing URL.

In the radio program distribution system 1 having the above configuration, the user terminal 70 monitors the R channel instruction sound of the stereo sound signal distributed from the distribution server 40, and the instruction sound is in a weak sound state. When it is detected that an event has occurred, an operation instruction is acquired from the instruction server 50, and an operation according to the content of the operation instruction is executed.
Then, the contents of the operation instruction and the display contents of the web page stored in the file server 60 are set to contents related to the radio program, so that the radio program producer can listen to the Internet radio. Information related to the contents of the radio program is provided to the user of the terminal 70 as the contents of the web page, or the user terminal 70 is linked to the progress of the radio program being distributed. The process described in the operation instruction can be executed by remote control.
Next, the operation of the radio program distribution system 1 that can realize such a function will be described below as a radio program link processing method.

[Radio program link processing method]
Here, the following items will be described in order as a breakdown of the radio program link processing method.
(1) Preparatory stage (2) During Internet radio distribution (when the volume of the instruction voice is constant)
(3) During Internet radio distribution (when the instruction voice includes a weak sound state)
(4) Operation procedure of radio program distribution system

(1) Preparation Stage First, the preparation stage before distributing Internet radio will be described.
Here, the following items will be described in order.
(1-1) Preparation of radio program structure (1-2) Preparation of operation instructions and provided images

(1-1) Preparation of radio program structure Generally, there are various genres of programs distributed from the radio station A. For example, the genre is a talk program, a music program, a variety program, information. In the case of a program or the like, a configuration and a scenario are determined in advance.
For example, in the case of a talk program, the theme is decided in advance, or what to introduce in the program is decided in advance from emails and letters received from listeners, and the story is advanced according to this content Is done.
In addition, music to be played is determined in advance in music programs, corner themes to be performed in variety programs are determined in advance, and contents of information to be provided in information programs are determined in advance.
The composition and scenario of these radio programs are created by the composer and embodied by the director.

Here, an information program is given as an example of a radio program.
There are various contents of the information program, but here, as shown in FIG. 7, it is assumed that the content with the program name “Tokyo Sightseeing Guide” is produced, and as one corner within this program, It is assumed that there is a “Tokyo Sightseeing Tour” that introduces famous sights.
In addition, Sugamo Jizo Shopping Street, Ueno Zoo, Sensoji Temple, etc. are selected as attractions to introduce, and from 13:00 to 13 for the introduction of Sugamo Jizo Shopping Street as the timetable for recording time to introduce each landmark. : 05:00, Ueno Zoo will be introduced from 13:05:00 to 13:10:00, and Sensoji Temple will be introduced from 13:10:00 to 13:15:00.

When such a program is configured, a person who is engaged in the production of a radio program (for example, a constituent writer or a director) or a system technician in charge of managing the radio program distribution system 1 listens to Internet radio. An image to be displayed on the display unit 75 of the user terminal 70 possessed by the user is selected.
For example, for the Sugamo Jizo Shopping Street, an image related to the Sugamo Jizo Shopping Street (see FIG. 8A) is selected. In addition, for Ueno Zoo, an image related to Ueno Zoo (see FIG. 5B) is selected. Furthermore, for Sensoji, an image related to Sensoji is selected (see (c) in the figure).

Then, the event occurrence time is set as the timing for displaying the selected images on the display unit 75 of the user terminal 70.
That is, when the user terminal 70 receives a stereo audio signal of the content of the program name “Tokyo sightseeing guide” and starts outputting audio, and each landmark is introduced sequentially, it synchronizes with the timing of introducing each of these landmarks. For example, when introducing the Sugamo Jizo Shopping Street, images related to the Sugamo Jizo Shopping Street are displayed on the display unit 75 of the user terminal 70, and when introducing the Ueno Zoo, the image is related to the Ueno Zoo. The image to be displayed is displayed on the display unit 75, and when introducing Sensoji, an event occurrence time is set as a time at which an image related to this Sensoji can be displayed on the display unit 75.

  Specifically, as shown in FIG. 7, the event occurrence time for displaying an image related to the Sugamo Jizo Shopping Street is a time for introducing this Sugamo Jizo Shopping Street from 13:00 to 13:05. 13:00:02, which is the time close to the start time of 1:00. The event occurrence time for displaying an image related to Ueno Zoo is a time close to the start time from 13:05:00 to 13:10:00, which is the time to introduce Ueno Zoo. 05:02 is set. Furthermore, the event occurrence time for displaying an image related to Sensoji Temple is a time close to the start time from 13:10:00 to 13:15:00, which is the time to introduce Sensoji Temple. 02 is set.

(1-2) Preparation of operation instruction and provided image When a system technician or the like selects an image to be displayed on the display unit 75 of the user terminal 70 possessed by the user who listens to the Internet radio, the image is displayed on the web page. This web page is filed so as to be designated by a URL and stored in the storage unit of the file server 60.
Further, the system engineer or the like confirms the URL specifying the address of the image stored in the storage unit of the file server 60, writes this in the operation instruction, and stores it in the storage unit 52 of the instruction server 50.
At this time, an operation instruction is generated for each event time described in the program configuration table, and an address of an image to be displayed on the display unit 75 of the user terminal 70 is specified when the event time is reached. The URL is described in the corresponding operation instruction.
For example, the URL specifying the address of the image related to the Sugamo Jizo-Dori shopping street is described in the operation instruction created in response to the event time “13:00:02”, so that the event time “13: An operation instruction corresponding to “00:02” is created. The same applies to the event times “13:05:02” and “13:10:02”.
Then, these created operation instructions are stored in the storage unit 52 of the instruction server 50.
This completes the preparation.

  In the description of (1-1) and (1-2), the contents of the operation instruction are only acquired from the file server 60 in order to facilitate the explanation. The processing based on the function executable by the user terminal 70 is described in the operation instruction as shown in FIGS. 5B to 5E, not limited to the acquisition of the image from the file server 60. Can do.

(2) During Internet radio distribution (when the volume of the instruction voice is constant)
Next, with reference to FIG. 9, the operation of the radio program distribution system 1 when a weak sound state is not inserted in the R channel instruction sound of the stereo sound output from the audio mixer 10 and the sound volume is constant will be described. I will explain.
A radio program is recorded in the recording studio of radio station A, and the voice of the performer is input to the audio mixer 10 through the microphone 20.
In addition, a sound having a constant volume generated by the sine wave signal generator is input to the audio mixer 10 as an instruction sound.

The audio mixer 10 sets the localization of the program audio sent from the microphone 20 as L, mixes the localization of the instruction audio sent from the sine wave signal generator as R, and mixes these analog stereo audio. And transmitted to the compression encoding apparatus 30.
The compression encoding apparatus 30 encodes (encodes) the digital audio signal, digitizes it, compresses it, and sends it to the distribution server 40 by streaming.
When the distribution server 40 receives the Internet radio streaming distribution start request transmitted from the user terminal 70, the distribution server 40 can stream the digital stereo audio signal transmitted from the compression encoding apparatus 30 using the streaming protocol. After optimizing and protecting the file, it is streamed to the user terminal 70 via the Internet 80.

The communication unit 71 of the user terminal 70 receives a stereo audio signal that has been streamed from the distribution server 40.
The radio output control unit 761 separates the stereo audio signal, sends the L channel program audio to the audio output unit 73, and reproduces monaurally in the audio output unit 73 to output the audio to the outside. Thereby, the user of the user terminal 70 can listen to the radio program.
In addition, the event monitoring unit 762 monitors the R channel instruction sound separated from the stereo sound signal.
If there is no change in the volume of the instruction voice as a result of the monitoring, it is determined that no event has occurred, and the processing based on this instruction voice is not executed.

(3) During Internet radio distribution (when the instruction voice includes a weak sound state)
Next, the operation of the radio program distribution system 1 when the sound for instruction of the R channel of stereo sound includes a weak sound state will be described with reference to FIG.
A radio program is recorded in the recording studio of radio station A, and the voice of the performer is input to the audio mixer 10 through the microphone 20.
In addition, a sound having a constant volume generated by the sine wave signal generator is input to the audio mixer 10 as an instruction sound.

In the audio mixer 10, when the event time in the program configuration table is reached, a weak sound state having a volume of almost zero is inserted into the instruction voice by the operation of the fader 121 by the music engineer.
A specific example will be described. For example, when a radio program with the program name “Tokyo Tourist Information” is recorded in accordance with the contents of the program configuration table shown in FIG. 7, the music engineer refers to the program configuration table and when the event time is reached Then, among the faders 121 of the audio mixer 10, the fader 121 corresponding to the channel to which the instruction sound is input is operated, and the sound volume of the instruction sound is switched from the constant sound volume to the almost zero sound volume. Insert a weak sound state into the instruction voice. Then, after a predetermined time (within a few seconds), the volume of the instruction voice is returned to a constant volume by switching from almost zero volume to a constant volume.
As a result, the audio mixer 10 outputs stereo sound having the instruction sound in which the weak sound state is inserted as the R channel and the program sound as the L channel, and is transmitted to the compression encoding device 30.

The compression encoding apparatus 30 encodes (encodes) the digital audio signal, digitizes it, compresses it, and sends it to the distribution server 40 by streaming.
The distribution server 40 distributes the stereo audio signal to the user terminal 70 in a streaming manner.

The communication unit 71 of the user terminal 70 receives a stereo audio signal that has been streamed from the distribution server 40.
The radio output control unit 761 separates the stereo audio signal, sends the L channel program audio to the audio output unit 73, and reproduces monaurally in the audio output unit 73 to output the audio to the outside.
In addition, the event monitoring unit 762 monitors the R channel instruction sound separated from the stereo sound signal.
As a result of the monitoring, when a weak sound state in which the volume of the instruction voice is almost zero is detected, it is determined that an event has occurred, and the instruction file request transmission / reception unit 763 transmits the instruction file request to the instruction server 50.
When receiving the instruction file request from the user terminal 70, the instruction server 50 transmits an instruction file including an operation instruction to the user terminal 70.

The communication unit 71 of the user terminal 70 receives the instruction file transmitted from the instruction server 50. Thereby, the user terminal 70 acquires the instruction file.
The operation instruction execution unit 764 analyzes the contents of the operation instruction included in the instruction file, and executes the process indicated by the operation instruction.
For example, when the operation instruction indicates a process of “open specified URL”, the operation instruction execution unit 764 transmits a web page request to the file server 60 with the URL as a destination.
When receiving a web page request from the user terminal 70, the file server 60 transmits the web page specified by the URL to the user terminal 70.

When the communication unit 71 of the user terminal 70 acquires the web page, the operation instruction execution unit 764 causes the display unit 75 to display the web page. Thereby, the user of the user terminal 70 can visually recognize the web page on which information related to the radio program being listened to is displayed on the screen of the display unit 75.
In addition, when the operation instruction indicates a process of “play the built-in music”, the operation instruction execution unit 764 reproduces music stored in the storage unit 72 in advance.

Further, the event monitoring unit 762 continues to monitor the R channel instruction audio included in the stereo audio signal stream-distributed from the distribution server 40.
As a result of the monitoring, when a weak sound state of the instruction voice is detected, it is determined that an event has occurred. The instruction file request transmission / reception unit 763 transmits the instruction file request to the instruction server 50, the communication unit 71 receives the instruction file transmitted from the instruction server 50, and the operation instruction execution unit 764 receives the instruction file. The operation instruction stored in is analyzed, and the contents described in the operation instruction are executed.

  As described above, while the user terminal 70 is receiving the content of the radio program, the event monitoring unit 762 continues to monitor the R channel instruction sound and determines that an event has occurred each time a weak sound state is detected. Then, by receiving the operation instruction from the instruction server 50 and executing the process according to the contents of the process described in the operation instruction, the user terminal 70 can execute the operation related to the contents on the radio program. It has become.

A specific example will be described. For example, the program name of the radio program is “Tokyo sightseeing guide” (see FIG. 7), and the image prepared in the file server 60 is an image related to the Sugamo Jizo shopping street, an image related to the Ueno zoo, It is assumed that the image is related to Sensoji Temple (see FIGS. 8A to 8C).
At the user terminal 70, the content of the program name “Tokyo sightseeing guide” is received and voice output is started, and the event monitoring unit 762 detects a weak sound state inserted in the instruction voice at the first event time. When it is determined that an event has occurred, the instruction file request transmission / reception unit 763 acquires the instruction file from the instruction server 50, and the operation instruction execution unit 764 is described in the operation instruction included in the instruction file. The web page request is transmitted to the URL, and an image related to the Sugamo Jizo-dori shopping street designated by the URL is received from the file server 60 and displayed on the display unit 75 (see FIG. 8A).
Next, when the event monitoring unit 762 detects a weak sound state inserted in the instruction voice at the second event time and determines that an event has occurred, the operation instruction execution unit 764 performs the operation of the file server 60. The image related to Ueno Zoo is received and displayed on the display unit 75 (see FIG. 5B).
Subsequently, when the event monitoring unit 762 detects a weak sound state inserted in the instruction voice at the third event time and determines that an event has occurred, the operation instruction execution unit 764 An image related to Sensoji Temple is received from 60 and displayed on the display unit 75 (see FIG. 5C).

In this way, the user terminal 70 monitors the R channel of the stereo audio of the radio program that has been distributed in streaming, and if a weak sound state is detected, it is determined that an event has occurred, and every time the occurrence of this event is detected. In addition, an image related to the content of the radio program is received from the file server 60 and automatically displayed on the display unit 75.
The event is set at the timing when the content of the radio program is changed. In addition, the image distributed from the file server 60 to the user terminal 70 is an image related to each of the contents constituting the radio program.
For this reason, the user terminal 70 automatically displays an image related to the content of the radio program on the display unit 75 while outputting the audio of the radio program that has been streamed, and outputs the audio of the radio program. When the content proceeds to the next content, an image related to the content after the transition can be automatically displayed on the display unit 75.

Thereby, the producer of the radio program sequentially provides images related to each content to the user of the user terminal 70 each time the content of the radio program shifts with the progress of the distribution of the radio program. can do. Also, by describing the operation process related to the radio program in the operation instruction, the user terminal 70 can be remotely operated to cause the user terminal 70 to execute the operation process related to the radio program.
Further, the user of the user terminal 70 can view an image related to the contents of the radio program on the display unit 75 while listening to the radio program that has been distributed in a streaming manner. Thus, the user of the user terminal 70 can enjoy the provision of information related to the radio program provided by the producer of the radio program and operation processing of the user terminal 70.

(4) Operation Procedure of Radio Program Distribution System Next, the operation procedure of the radio program distribution system 1 of the present embodiment will be described with reference to FIGS.
FIG. 11 is an operation procedure diagram showing the operation of the radio program distribution system 1 when a streaming distribution application is activated on the user terminal 70. FIG. 12 is an operation procedure diagram showing the operation of the radio program distribution system 1 after starting the audio output of the radio program by streaming distribution.

First, an operation procedure (operation step) of the radio program distribution system 1 when a streaming distribution application is activated on the user terminal 70 will be described with reference to FIG.
In the storage unit 72 of the user terminal 70, a program capable of receiving and outputting Internet radio sound and performing functions such as event detection is installed in advance as a dedicated application (S10: S is a step). .

The control unit 76 of the user terminal 70 activates the dedicated application by the operation of the input unit 74 by the user (S11).
The instruction file request transmission / reception unit 763 of the control unit 76 transmits an instruction file request (XML request) to the instruction server 50 via the communication unit 71 with the activation of the dedicated application (S12).

When receiving the instruction file request from the user terminal 70 (S13), the instruction server 50 transmits an instruction file including an operation instruction to the user terminal 70 that has transmitted the instruction file request (S14).
When the communication unit 71 of the user terminal 70 receives the instruction file transmitted from the instruction server 50 (S15), the instruction file request transmission / reception unit 763 stores the operation instruction included in the instruction file in the storage unit 72. Let
The operation instruction execution unit 764 analyzes the content of the operation instruction included in the instruction file transmitted from the instruction server 50, and executes processing according to the content (S16).
Note that the reason why the operation instruction is acquired when the dedicated application is activated is to acquire the latest operation instruction at this time.

The control unit 76 transmits an Internet radio streaming distribution start request to the distribution server 40 via the communication unit 71 (S17).
When the communication unit of the distribution server 40 receives the Internet radio streaming distribution start request transmitted from the user terminal 70, the digital stereo audio signal streamed from the compression encoding device 30 is used for the streaming protocol. After optimizing for streaming and protecting the file, streaming delivery is performed to the user terminal 70 via the Internet 80 (S19).
Thereby, the user terminal 70 starts audio output of the radio program by Internet radio streaming distribution (S20).

Next, the operation of the radio program distribution system 1 after starting the audio output of the radio program by streaming distribution will be described with reference to FIG.
Here, a description will be given from the stage where a radio program is recorded in the recording studio of radio station A.

Radio programs are recorded in the recording studio of radio station A.
The sound uttered by the performer of the radio program is captured by the microphone 20 (S30) and input to the input terminal 11 of the audio mixer 10 as the program sound.
In addition, the other input terminal 11 of the audio mixer 10 receives an instruction voice having a constant volume generated by the sine wave signal generator.
The volume adjustment unit 122 of the audio mixer 10 adjusts the volume of the program audio according to the operation of the fader 121 by the music engineer.
Also, when the event time of the program configuration table is reached, the music engineer operates the fader 121 corresponding to the channel to which the instruction voice is input so that the volume of the instruction voice becomes almost zero. By making the adjustment, the volume adjustment unit 122 of the audio mixer 10 inserts a weak sound state into the instruction voice (S31).

Further, when the music engineer rotates the adjustment knob 131 corresponding to the channel to which the program audio is input to the L (left) side, the sound localization unit 132 of the audio mixer 10 determines the localization of the program audio to L ( Left).
Further, when the music engineer rotates the adjustment knob 131 corresponding to the channel to which the instruction voice is input to the R (right) side, the sound localization unit 132 of the audio mixer 10 determines the localization of the instruction voice. Set to R (right).
The mixing unit 14 of the audio mixer 10 mixes the program audio and the instruction audio (S32), the output volume adjusting unit 15 adjusts the volume of the mixed sound, and the output unit 16 is mixed. The transmitted sound is transmitted as stereo sound from the output terminal 17 to the compression encoding apparatus 30.

The compression encoding apparatus 30 encodes (encodes) and digitizes the stereo audio analog audio signal sent from the audio mixer 10, compresses it, and streams it to the distribution server 40 (S33).
The distribution server 40 optimizes the digital stereo audio signal stream-transmitted from the compression encoding apparatus 30 so that it can be streamed, and performs streaming distribution to the user terminal 70 via the Internet 80 (S34).

The communication unit 71 of the user terminal 70 receives a stereo audio signal that has been streamed from the distribution server 40.
The radio output control unit 761 separates the stereo audio signal and causes the audio output unit 73 to output monaural output of the L channel program audio (S35). Also, the R channel instruction voice is sent to the event monitoring unit 762.

When the event monitoring unit 762 receives the R channel instruction sound from the radio output control unit 761, the event monitoring unit 762 monitors the change in the sound volume of the instruction sound (S36).
As a result of monitoring, when the volume of the instruction voice is constant, it is determined that no event has occurred.
On the other hand, when a weak sound state in which the sound volume of the instruction voice is changed from a constant sound volume to almost zero is detected, it is determined that an event has occurred (S37).
The instruction file request transmission / reception unit 763 transmits an instruction file request (XML request) to the instruction server 50 via the communication unit 71 when the event monitoring unit 762 determines that an event has occurred (S38). ).

When receiving an instruction file request (XML request) from the user terminal 70 (S39), the instruction server 50 transmits an instruction file including an operation instruction to the user terminal 70 that has transmitted the instruction file request (S40).
When the communication unit 71 of the user terminal 70 receives the instruction file transmitted from the instruction server 50 (S41), the instruction file request transmission / reception unit 763 stores the operation instruction included in the instruction file in the storage unit 72. Let
The operation instruction execution unit 764 analyzes the content of the operation instruction included in the instruction file transmitted from the distribution server 40, and executes processing according to this content (S42).

Here, when the content of the operation instruction is display of a specific image, the operation instruction execution unit 764 sends a web page request (URL request) to the URL described in the operation instruction as a destination via the communication unit 71. To the file server 60 (S50).
The communication unit of the file server 60 receives a web page request (URL request) (S51). A control part takes out the web page designated by URL contained in the web page request from a memory | storage part, and transmits with respect to the user terminal 70 which has transmitted the web page request (S52).
The communication unit 71 of the user terminal 70 receives the web page transmitted from the file server 60 (S53).
The display unit 75 displays the web page by the activated web browser (S54).

[Radio program link processing program]
Next, the radio program link processing program will be described.
The radio program linkage processing function (function for executing the radio program linkage processing method) of the computer (audio mixer, compression encoding device, distribution server, instruction server, file server, user terminal) in the above embodiment is a storage means ( For example, it is realized by a radio program link processing program stored in a ROM (Read Only Memory) or a hard disk.

The radio program linkage processing program is stored in a computer control unit (CPU (Central Processing).
Unit), etc.) to send instructions to each component of the computer and perform predetermined processing such as audio mixer volume adjustment processing, sound localization processing, mixing processing, compression encoding device encoding (encoding) processing, Various processing based on compression processing, distribution server streaming optimization processing, instruction server operation instruction transmission processing, file server web page transmission processing, user terminal Internet radio sound output processing, instruction sound weak sound state detection processing, operation instructions Let the process do.
As a result, the radio program link processing function includes software radio program link processing program and hardware (computer) (audio mixer, compression encoding device, distribution server, instruction server, file server, user terminal). Is realized through collaboration.

The radio program link processing program for realizing the radio program link processing function is stored in a computer ROM, hard disk or the like, or in a computer-readable recording medium such as an external storage device or a portable recording medium. Can be stored.
An external storage device is a CD-ROM (Compact
This refers to a memory expansion device that incorporates a storage medium such as Disk-Read Only Memory and is externally connected to each device constituting the radio program distribution system. On the other hand, the portable recording medium is a recording medium that can be mounted on a recording medium driving device (drive device) and is portable, and refers to, for example, a flexible disk, a memory card, a magneto-optical disk, and the like.

The program recorded on the recording medium is stored in a computer RAM (Random Access).
Memory) and the like are executed by the CPU (control unit). By this execution, the function of each device constituting the radio program distribution system in the above-described embodiment is realized.
Furthermore, when a radio program link processing program is loaded by a computer, the radio program link processing program held by another computer can be downloaded to its own RAM or external storage device using a communication line. The downloaded radio program link processing program is also executed by the CPU, and the radio program link processing function of each device constituting the radio program distribution system in the above embodiment is realized.

As described above, according to the radio program distribution system, radio program link processing method, and radio program link processing program of this embodiment, the change in the volume of the audio signal transmitted from the distribution server is used as a trigger for the occurrence of an event. Therefore, event information can be acquired by a method that does not depend on the type of media or the reception protocol.
Also, when the trigger is received, it is determined that an event has occurred, an operation instruction is received from the instruction server, and the user terminal executes processing such as image display according to the content of the operation instruction. Information related to the contents of the radio program can be distributed to the user terminal, and an operation corresponding to the contents of the radio program can be executed by the user terminal.

The preferred embodiments of the radio program distribution system, radio program link processing method, and radio program link processing program of the present invention have been described above. However, the radio program distribution system, radio program link processing method, and radio program link processing program according to the present invention have been described. It is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.
For example, in the above-described embodiment, streaming distribution of a radio program has been described. However, the present invention can also be applied to a system that distributes a radio program on demand.
In the above-described embodiment, in the stereo sound output from the audio mixer, the program sound is the L channel and the instruction sound is the R channel. However, the reverse may be possible, and the program sound is the R channel and the instruction sound is the L channel. It is good.

Further, in the above-described embodiment, transmission of the instruction file request from the user terminal to the instruction server is executed when the dedicated application is started or when an event occurs. It can also be done by operating.
In the above-described embodiment, the instruction server that stores the operation instruction and the file server that stores the related image of the radio program are separately configured. However, the present invention is not limited to this configuration. And a function for storing related images of radio programs can be executed by one server.

  The present invention can be used in a system capable of executing Internet radio distribution.

DESCRIPTION OF SYMBOLS 1 Radio program delivery system 10 Audio mixer 11 Input terminal 12 Sound volume adjustment means 13 Sound localization means 14 Mix part 16 Output part 30 Compression encoding apparatus 40 Distribution server 50 Instruction server 60 File server 70 User terminal 71 Communication part 72 Storage part 73 Audio | voice output Unit 75 Display unit 76 Control unit 761 Radio output control unit 762 Event monitoring unit 763 Instruction file request transmission / reception unit 764 Operation instruction execution unit 80 Internet (communication line)

Claims (8)

A radio program delivery system for delivering radio program audio via a communication line,
A mixer for inputting the sound of the radio program as program sound and adjusting the volume;
An encoding device for encoding the program audio sent from the mixer;
A distribution server for distributing the program audio sent from the encoding device via the communication line;
A user terminal that receives and outputs the program audio distributed from the distribution server;
An instruction server for storing operation instructions created in a predetermined language;
The mixer is
An input terminal for inputting the program audio;
A volume adjusting means for inserting a weak sound state of almost zero volume into the instruction voice having a constant volume at a predetermined timing;
A mixing unit that mixes the program audio and the instruction audio to obtain stereo audio;
An output unit for transmitting the stereo sound to the encoding device;
The distribution server distributes the stereo sound to the user terminal;
The user terminal is
A communication unit for receiving the stereo sound;
An audio output unit for outputting the program audio;
A control unit that monitors a change in volume of the instruction voice and detects a change in volume, and transmits a request to transmit the operation instruction to the instruction server;
When the instruction server receives the operation instruction transmission request, the instruction server transmits the operation instruction to the user terminal;
The radio program distribution system, wherein the control unit of the user terminal executes a predetermined operation based on the content of the operation instruction. The mixer is
Sound localization means for setting the localization of the program audio as a right or left localization, and setting the localization of the instruction audio as a left or right localization;
The radio program distribution system according to claim 1, wherein the output unit transmits the stereo sound obtained by mixing the program sound and the instruction sound to the encoding device. It has a file server that stores web pages,
The said user terminal acquires the web page designated by this URL from the said file server, when URL is described in the said operation instruction received from the said instruction | indication server. Radio program distribution system. The user terminal is
When stopping the reception of the audio signal of the radio program is described in the operation instruction transmitted from the instruction server, the reception of the audio signal of the radio program is stopped,
When playback of music built in the user terminal is described in the operation instruction, the music built in the user terminal is played,
The radio according to any one of claims 1 to 3, wherein the predetermined application installed in the user terminal is activated when the operation instruction describes the activation of the predetermined application. Program distribution system. The change of the acquisition destination of the said operation instruction is described in the said operation instruction, The said user terminal changes the acquisition destination of the said operation instruction. Radio program distribution system. A radio program linked processing method for distributing audio of a radio program via a communication line,
A process in which the instruction server stores operation instructions created in a predetermined language;
The mixer inputs the radio program audio as the program audio,
A process in which the mixer adjusts the volume of the program audio;
A process in which the mixer inserts a weak sound state with a volume of almost zero into the instruction voice having a constant volume at a predetermined timing;
A process in which the mixer mixes the program audio and the instruction audio to obtain stereo audio;
A process in which the mixer transmits the stereo sound to an encoding device;
A process in which the encoding device encodes the program audio sent from the mixer and transmits the encoded program audio to a distribution server;
A process in which the distribution server distributes the stereo sound transmitted from the encoding device to a user terminal via the communication line;
When the user terminal receives the stereo sound, the user terminal outputs the program sound, and monitors a change in the volume of the instruction sound. When the user terminal detects that the sound volume has changed, the user terminal sends the operation instruction transmission request. Processing to send to the instruction server;
When the instruction server receives the operation instruction transmission request, a process of transmitting the operation instruction to the user terminal;
A radio program linkage processing method characterized in that the user terminal has a process of executing a predetermined operation based on the content of the operation instruction. A radio program interlocking processing program for causing a radio program distribution system to execute a step of distributing audio of a radio program via a communication line,
An instruction server storing an operation instruction created in a predetermined language;
A mixer inputting radio program audio as program audio;
The mixer adjusting the volume of the program audio;
The mixer inserts a weak sound state with a volume of almost zero into the instruction voice having a constant volume at a predetermined timing; and
The mixer mixing the program audio and the instruction audio to obtain stereo audio;
The mixer transmitting the stereo sound to an encoding device;
The encoding device encodes the program audio sent from the mixer and transmits it to a distribution server;
The delivery server delivering the stereo sound sent from the encoding device to the user terminal via the communication line;
When the user terminal receives the stereo sound, the user terminal outputs the program sound, and monitors a change in the volume of the instruction sound. When the user terminal detects that the sound volume has changed, the user terminal sends the operation instruction transmission request. Sending to the instruction server;
When the instruction server receives the operation instruction transmission request, the instruction server transmits the operation instruction to the user terminal;
The radio program linkage processing program, wherein the user terminal causes the radio program distribution system to execute a predetermined operation based on the content of the operation instruction. A radio program interlocking processing program for causing a user terminal to execute a step of outputting sound of a radio program distributed via a communication line,
When the stereo sound distributed via the communication line is received, the program sound included in the stereo sound is output and the change in the volume of the instruction sound included in the stereo sound is monitored. And when detecting that the volume has changed, a step of transmitting an operation instruction transmission request to the instruction server;
A radio program linkage processing program that causes the user terminal to execute a step of executing a predetermined operation based on the content of the operation instruction transmitted from the instruction server.