JP4661467B2 - Voice communication terminal and program - Google Patents

Description

The present invention relates to a voice communication terminal and a program for converting voice data from a server connected to a plurality of terminal groups via a communication line into voice and outputting the voice .

In recent years, with the spread of open networks such as the Internet, broadcast communication can be performed between a plurality of terminals via a predetermined server connected to the network. For example, conventionally, a registration request for an information type is issued from a terminal to a server, joined to a group, and the distribution destination based on the information type of the message in the server, the registration status of the terminal for the information type, and the group address record A technique has been proposed in which broadcast communication is performed by determining a group of messages and distributing a message to terminals belonging to a distribution destination group determined by a server (see, for example, Patent Document 1). Here, the broadcast communication means communication intended to transmit the same information to a plurality of terminals connected to the communication network at a time.
Japanese Patent Laid-Open No. 10-285162

However, in the conventional technology, it is necessary to register a group for requesting distribution to the server in advance, so if there is a change in the environment to be used, the registration contents of the server must be set again. The work becomes complicated.
In addition, when one terminal receives broadcast broadcasts from multiple groups at the same time, the audio from multiple groups will be output in a mixed manner, so it will be distributed preferentially from the group that you want to receive. However, it is difficult to listen to voices from which group even if the voices are distributed.

An object of the present invention, even when receiving the audio data from a plurality of terminal group at the same time, is to ensure that listen to the speech from the terminal group priority is set high.

The present invention is a voice communication terminal that converts voice data from a server connected to a plurality of terminal groups via a communication line into voice and outputs the voice , and which terminal group has priority over the plurality of terminal groups. A setting means for arbitrarily setting priority information for determining whether to perform; a receiving means for receiving voice data from the server; and a voice data received by the receiving means for separating voice data for each terminal group; Audio mixing means for mixing the audio data of the terminal group so as to be easy to hear with priority based on the priority information between the terminal groups set by the setting means, and the audio mixed by the audio mixing means , a voice output means for outputting, characterized by comprising a.

According to the present invention, even when receiving the audio data from a plurality of terminal group at the same time, can surely listen to audio from the terminal group priority is set high.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

  First, the configuration of the broadcast communication system 100 in the present embodiment will be described with reference to FIG. As shown in FIG. 1, the broadcast communication system 100 includes a server 10, a wireless communication device 20, a plurality of terminals 30, and the like. The server 10 and each terminal 30 exchange data with each other via the wireless communication device 20. Transmission and reception are possible. In addition, the quantity of the server 10, the radio | wireless communication apparatus 20, and the terminal 30 shall not be limited to the example of illustration.

  The server 10 is a server device that broadcasts voice data transmitted from one terminal to a plurality of terminals, and broadcasts voice data in units of groups (see groups 1 to 3 in the figure). This is performed via the wireless communication device 20.

  The wireless communication device 20 is a wireless base station that relays data transmitted and received between the server 10 and each terminal 30, and includes a PDC (Personal Digital Cellular) method and a W-CDMA (Wide Band Code Division Multiple Access). ) System, a wireless system compliant with the IEEE 802.11 standards, a wireless device capable of performing wireless communication such as Bluetooth, etc., and a wireless communication network W is formed between each terminal 30. The wireless communication device 20 includes an interface such as a router, a TA (Terminal Adapter), and a LAN adapter for connecting to the server 10, and is connected to the server 10 via the network N. In the present embodiment, the server 10 and the wireless communication device 20 are connected by wire. However, the present invention is not limited to this, and may be connected wirelessly. In addition, the wireless communication device 20 and each terminal 30 are wirelessly connected. However, the present invention is not limited thereto, and may be connected by wire.

  The terminal 30 is a portable information terminal such as a mobile phone terminal or a PDA, and performs broadcast communication to a specific group by transmitting voice data to the server 10 via the wireless communication device 20, and the terminal 30 Broadcast communication addressed to the group to which it belongs is received from the server 10 via the wireless communication device 20. In the present embodiment, each terminal 30 is uniquely assigned an IP address, and a terminal name such as a host name that can uniquely identify each terminal 30 is assigned. And

Next, the internal configuration of the server 10 will be described with reference to FIG.
As shown in FIG. 2, the server 10 includes a control unit 11, a display unit 12, an operation unit 13, a storage unit 14, a voice packet transfer unit 15, and a transmission control unit 16.

  The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory) (all not shown) and the like, and reads various control programs stored in the storage unit 14 to read the RAM. The data is expanded in a work memory formed therein, and the operation of each unit is centrally controlled according to the control program. In addition, the control unit 11 executes group registration processing S10, distribution destination registration processing S30, and broadcast distribution processing S50, which will be described later, in cooperation with a control program expanded in the RAM.

  The display unit 12 includes an LCD (Liquid Crystal Display), an ELD (Electro Luminescence Display) panel, and the like, and performs screen display based on display data input from the control unit 11.

  The operation unit 13 includes a keyboard, a mouse, and the like provided with character input keys, numeric input keys, and other keys associated with various functions, and outputs an operation signal corresponding to an operation by the user to the control unit 11.

  The storage unit 14 includes a recording medium (not shown) in which a program, data, and the like are stored in advance, and the recording medium is configured by a magnetic or optical recording medium or a nonvolatile memory such as a semiconductor. The recording medium is fixedly attached to the storage unit 14 or detachably mounted. The recording medium includes a system program corresponding to the server 10, various processing programs that can be executed on the system program, and the like. The data processed by the program is stored. Each of these processing programs is stored in the form of a readable program code, and the control unit 11 sequentially executes operations according to the program code.

  In addition, the storage unit 14 stores in the storage medium a group name indicating the name of each group classified in the terminal 30 of the broadcast communication system 100, and information on the terminal 30 belonging to the group name (hereinafter, terminal information). And the distribution table 141 registered in association with each other.

  A part or all of the programs and data stored in the recording medium may be received from other devices via the transmission control unit 16 and stored. The program may be transmitted to a server or a client via a transmission medium such as a network line and installed in these devices. The programs and data include those realized by firmware integrated with computer hardware.

  The voice packet transfer unit 15 broadcasts the voice data transmitted from the terminal 30 via the transmission control unit 16 under the control of the control unit 11. Here, it is assumed that the voice data broadcast-delivered by the voice packet transfer unit 15 is transmitted in units of packets conforming to the TCP / IP protocol.

  The transmission control unit 16 includes a router, a TA (Terminal Adapter), a LAN adapter, and the like, and performs communication control with the wireless communication device 20.

Next, the internal configuration of the terminal 30 will be described with reference to FIG.
As shown in FIG. 3, the terminal 30 includes a control unit 31, a display unit 32, an operation unit 33, a storage unit 34, a voice input unit 35, a voice output unit 36, a voice packet assembly / disassembly unit 37, a voice attenuation unit 38, a voice It comprises a mixing unit 39, a transmission control unit 40, and the like.

  The control unit 31 includes a CPU, a ROM, a RAM (all not shown) and the like, reads various control programs stored in the storage unit 34, develops them in a work memory formed in the RAM, and in accordance with the control programs Centrally control the operation of each part. In addition, the control unit 31 executes a reception group setting process S20, an audio data transmission process S40, and an audio data reception process S70, which will be described later, in cooperation with a control program developed in the RAM.

  The display unit 32 is configured by an LCD, an ELD panel, or the like, and performs screen display based on display data input from the control unit 31.

  The operation unit 33 includes a character input key, a numeric input key, a keyboard provided with keys associated with various functions, a pointing device such as a mouse, and the like, and outputs an operation signal corresponding to an operation by the user to the control unit 31. .

  The storage unit 34 includes a recording medium (not shown) in which programs, data, and the like are stored in advance, and the recording medium is configured by a magnetic or optical recording medium or a nonvolatile memory such as a semiconductor. The recording medium is fixedly attached to the storage unit 34 or detachably mounted. The recording medium includes a system program corresponding to the terminal 30, various processing programs that can be executed on the system program, and the like. The data processed by the program is stored. Each of these processing programs is stored in the form of a readable program code, and the control unit 31 sequentially executes an operation according to the program code.

  In addition, the storage unit 34 is a member group table 341 in which the group to which the terminal 30 set by the reception group setting process S20 described later belongs and the priority order of each group are registered in association with the storage medium. Is remembered.

  In addition, the storage unit 34 stores, in the storage medium, voice data transmitted from the server 10 as a broadcast communication in units of groups in association with the group name that is the transmission target of the broadcast communication. 342 is stored.

  A part or all of the programs and data stored in the recording medium may be received from other devices via the transmission control unit 40 and stored. The program may be transmitted to a server or a client via a transmission medium such as a network line and installed in these devices. The programs and data include those realized by firmware integrated with computer hardware.

  The audio input unit 35 is a microphone or other audio input device 351 that collects sound emitted from a user and converts it into an electric signal, a volume amplifying device 352 that amplifies or attenuates an electric signal output from the audio input device 351, a volume The electric signal amplified by the amplifying device 352 is digitized, and is constituted by a voice encoding unit 353 that outputs it as voice data (PCM data).

  The audio output unit 36 includes an audio decoding unit 361 that analogizes audio data (PCM data) and outputs it as an audio signal, a volume amplification device 362 that amplifies or attenuates the audio signal analogized by the audio decoding unit 361, and a volume amplification An audio output device 363 such as a speaker for outputting (reproducing) an audio signal amplified or attenuated by the device 362 is configured.

  The voice packet assembling / disassembling unit 37 assembles or disassembles voice data input in units of packets via the transmission control unit 40 and stores the processed voice data in the received voice table 342.

  The sound attenuating unit 38 attenuates the volume of the sound data stored in the received sound table 342 under the control unit 31.

  The voice mixing unit 39 mixes (synthesizes) the voice data stored in the received voice table 342 and generates one voice data.

  The transmission control unit 40 includes a PDC system, a W-CDMA system, a wireless system compliant with IEEE 802.11 standards, a wireless device capable of performing wireless communication such as Bluetooth, and the like via a wireless communication network. Communication control with the connected wireless communication apparatus 20 is performed.

Next, with reference to FIG. 4, a procedure until broadcast delivery is performed in the broadcast communication system 100 will be described. FIG. 4 is a diagram for explaining processing performed in the server 10 and each terminal 30 in time series, and shows the passage of time from the upper part to the lower part of the drawing.
Hereinafter, each process will be described.

<Registration process>
First, with reference to FIG. 5, each process shown in FIG. 4 will be described.
FIG. 5 is a diagram schematically showing the contents of the group registration process S10 performed by the server 10. As shown in the figure, the control unit 11 registers one or a plurality of group names in the distribution table 141 stored in the storage unit 14 in response to an input signal input from the user via the operation unit 13. . Here, it is assumed that the input group name and the number of groups can be arbitrarily set. In this embodiment, it is assumed that groups 1, 2, and 3 are registered in the distribution table 141 as group names.

<Reception group setting process and delivery destination registration process>
FIG. 6 is a diagram schematically showing the contents of the reception group setting process S20 performed at the terminal 30 and the distribution destination registration process S30 performed at the server 10. FIG. 7 is a ladder chart showing a flow of procedures of the reception group setting process S20 and the delivery destination registration process S30.

  Hereinafter, the reception group setting process S20 and the delivery destination registration process S30 will be described with reference to FIGS. In addition, each process of step S21-S29 has shown the process performed by cooperation with the control part 21 and the control program expand | deployed by RAM not shown, and each process of step S31-S36 is control. The process performed by cooperation with the control program developed by the part 11 and RAM not shown is shown.

  First, request information for requesting acquisition of a group list is transmitted from the terminal 30 to the server 10 (step S21). On the other hand, when the transmitted request information is received (step S31), the server 10 extracts the group name registered in the distribution table 141 (step S32), and the extracted group name is transmitted as the request information. It is transmitted to the original terminal 30 (step S33).

  Next, when the group name is received from the server 10 (step S22), the terminal 30 displays the group name on the display unit 32 (step S23). Here, it waits until a priority order is input to the group to which its own terminal 30 desires to belong via the operation unit 33 (step S24; No), and if it is determined that it has been input (step S24). Yes), the group name to which the priority order is input and the priority order corresponding to the group name are registered in association with the belonging group table 341 (step S25), and dedicated for each group to which the priority order is input. Is set (step S26). For example, as shown in the belonging group table 341 in FIG. 6, when the group names are registered in association with the priorities 1, 2, and 3 for the groups 1, 2, and 3, respectively, 30 belongs to groups 1, 2, and 3, and three different reception port numbers are set for each group.

  Subsequently, the group name to which the priority order is input and the terminal information of the terminal 30 of itself are transmitted to the server 10 as reception group setting information (step S27). Here, it is assumed that the terminal information includes the terminal name, IP address, reception port number, and the like of the terminal 30 of the terminal. When a plurality of group names are included, the terminal information is set for each group name in step S26. It is assumed that the reception port number is associated with the group name.

  On the other hand, when the reception group setting information transmitted from the terminal 30 is received in the server 10 (step S34), information related to the terminal 30 is added to the group name indicated by the reception group setting information in the distribution table 141. Registration is performed in association with each other (step S35). Then, status information notifying whether or not the registration in step S35 has been normally completed is transmitted to the terminal 30 (step S36), and the distribution destination registration process S30 is terminated.

  On the other hand, when the status information transmitted from the server 10 is received at the terminal 30 (step S28), the content notified by the status information is displayed on the display unit 32 (step S29), and the reception group setting process S20 is performed. finish.

  Through the above processing, the terminal 30 of the information communication system 100 belongs to any one or all of the groups 1, 2, and 3, as shown in FIG.

<Audio data transmission processing and broadcast distribution processing>
FIG. 8 is a diagram schematically showing the contents of the transmission right acquisition process in the voice data transmission process S40 performed in the terminal 30 and the broadcast distribution process S50 performed in the server 10. FIG. 9 is a diagram schematically showing the contents of the distribution process in the voice data transmission process S40 performed in the terminal 30 and the broadcast distribution process S50 performed in the server 10. FIG. 10 is a ladder chart showing a procedure flow of the audio data transmission process S40 and the broadcast delivery process S50, and FIG. 11 is a flowchart showing a procedure flow of the delivery process in the broadcast delivery process S50.

  Hereinafter, the audio data transmission process S40 and the broadcast distribution process S50 will be described with reference to FIGS. In addition, each process of step S41-S46 has shown the process performed by cooperation with the control part 21 and the control program expand | deployed by RAM not shown, and each process of step S51-S61 is control. The process performed by cooperation with the control program developed by the part 11 and RAM not shown is shown.

  First, a transmission / reception operation screen is displayed on the display unit 32 (step S41), and it is determined whether or not the transmission button is pressed on the transmission / reception operation screen (step S42). Here, when it is determined that the transmission button is not pressed (step S42; No), this processing is immediately terminated.

  FIG. 6 is a diagram illustrating an example of a transmission / reception operation screen displayed on a display unit 32. FIG. In the figure, a transmission button B1 is provided for each group to which its own terminal 30 belongs, and the transmission button B1 of any one group can be alternatively pressed, and corresponds to this transmission button. Group to be selected is selected as a transmission target.

  Returning to FIG. 10, when it is determined in step S42 that the send button is pressed (step S42; Yes), request information for requesting the transmission right for the group selected as the transmission target is transmitted to the server 10. (Step S43). Here, it is assumed that the request information includes at least the group name selected as a transmission target and the terminal name of its own terminal.

  On the other hand, when the request information transmitted from the terminal 30 is received (step S51), the server 10 refers to the distribution table 141, and the transmission right is set in the group having the group name included in the request information. It is determined whether or not a terminal exists (step S52). Here, when it is determined that it does not exist (step S52; No), the transmission right is set for the terminal 30 (step S53), and the voice data transmission is transmitted together with the status information notifying that the transmission right has been acquired. Information indicating the trusted IP address and port number is transmitted to the terminal 30 (step S54).

  Here, the setting of the transmission right will be described with reference to FIG. If it is determined in step S52 that there is no terminal for which transmission rights are set in the same group, the terminal 30 that has transmitted the request information belonging to this group in the distribution table 141 (corresponding to terminal A in the figure) On the other hand, the transmission right is set to the terminal by setting a flag or the like (step S53).

  Returning to FIG. 10, if it is determined in step S52 that there is a terminal to which the transmission right is set (step S52; Yes), status information notifying that the transmission right cannot be acquired is transmitted (step S55). ), The process returns to step S51 again.

  Next, information about terminals registered in association with the group name included in the request information is extracted from the distribution table 141 (step S56), and a terminal list in which the extracted terminal information is registered in a list format is generated. (Step S57). Here, it is assumed that the voice data transmission source terminal 30 is excluded from the terminal list. Based on the terminal information registered in the terminal list, a transmission start signal for notifying the start of transmission is transmitted to the IP address and port number included in the terminal information (step S58), and the distribution in step S59 is performed. Transition to processing.

  On the other hand, on the terminal 30 side, it is determined whether or not the status information received from the server 10 is permitted to acquire the transmission right. When it is determined that the transmission right is not permitted (No in step S44), this process is performed. Exit immediately. If it is determined in step S44 that permission has been granted (step S44; Yes), the voice data transmission IP address and port number received together with the transmission right information are addressed via the voice input unit 35. The input voice data is transmitted to the server 10 in packet units (step S45). Here, it is assumed that the audio data is transmitted from the port number of the group to be transmitted among the port numbers set for each group to which the terminal 30 belongs.

Hereinafter, the distribution process of step S59 will be described with reference to FIG.
First, reception of voice data transmitted from the terminal 30 is waited (step S591; No), and when voice data is received (step S591; Yes), terminal information is sequentially obtained from the head of the terminal list generated in step S57. Is read (step S592), and the voice data is transmitted to the IP address and port number included in the read terminal information (step S593).

  Next, it is determined whether or not all the terminal information registered in the terminal list has been read. If it is determined that all the terminal information has not been read (step S594; No), the process returns to step S592 to return all the terminal information. Steps S592 to S594 are repeatedly executed until the reading is completed. If it is determined in step S594 that all terminal information has been read (step S594; Yes), the process proceeds to step S60.

  Returning to FIG. 10, when the transmission right is returned by releasing (OFF) the transmission button B1 on the transmission / reception operation screen in the terminal 30, return information indicating that the transmission right is returned is displayed. After the transmission (step S46), the audio data transmission process S40 ends.

  On the other hand, the server 10 determines whether or not the return information is received from the terminal 30 in step S58. If it is determined that the return information is not received (step S58), the process returns to step S57. If it is determined in step S58 that the return information has been received (step S58; Yes), the terminal 30 is identified from the transmission source IP address and port number of the return information based on the distribution table 141 ( In step S59, the transmission right set in the terminal 30 is released (step S60). Then, transmission end information for notifying the end of transmission is transmitted to each terminal registered in the terminal list relating to the group to which the released terminal 30 belongs (step S61), and the broadcast distribution processing S50 ends. .

<Audio data reception processing>
FIG. 13 is a diagram schematically showing the contents of the process related to the reception of the audio data in the audio data reception process S <b> 70 performed by the terminal 30. FIG. 14 is a diagram schematically showing the contents of the process related to the audio output control in the audio data receiving process S70 performed in the terminal 30. FIG. 15 is a diagram schematically showing the contents of the process relating to the audio output in the audio data receiving process S <b> 70 performed in the terminal 30.

  FIG. 16 is a flowchart showing the flow of the procedure of the voice data receiving process S70, and FIG. 17 is a flowchart showing the procedure of the voice output control process of the voice data receiving process S70.

  Hereinafter, the audio data reception process S70 will be described with reference to FIGS. In addition, each process of step S71-S80 has shown the process performed by cooperation with the control part 31 and the control program expand | deployed by RAM not shown.

  First, reception of transmission start information transmitted from the server 10 is waited (step S71; No), and when this transmission start information is received (step S71; Yes), the IP address and port that received the transmission start information A group that performs voice reception is identified based on the number (step S72), and the characters “receiving” are displayed in the reception state display area A1 (see FIG. 12) of the transmission / reception operation screen corresponding to the identified group. (Step S73).

  Next, when voice data is received from the server 10 (step S74), the voice data is subjected to predetermined processing by the voice packet assembling / disassembling unit 37, and then the voice data is identified in step S72. And stored in the received voice table 342 (step S75). And it transfers to the audio | voice output control process of step S76.

Here, with reference to FIG. 17, the audio | voice output control process of step S76 is demonstrated.
First, after the counter C that counts the number of received audio data is set to “0” (step S761), it is registered in the received audio table 342 based on the priority order of each group set in the belonging group table 341. Of the groups that have been set, the group names that have been set with higher priority are sequentially acquired (step S762; Yes).

  In step S763, it is determined whether or not the audio data corresponding to the group name acquired in step S762 is stored in the reception audio table 342. If it is determined that the audio data is not stored (step S763; No) ), The process returns to step S752 again, and the group name set with the next highest priority is acquired. If it is determined in step S763 that audio data is stored (step S763; Yes), the counter C is incremented by 1 (step S764), and whether or not the value of the counter C is 2 or more is determined. Determination is made (step S765).

  When it is determined that the value of the counter C is less than 2 (step S765; No), the process returns to step S762 again, and the group name with the next highest priority is acquired. When it is determined that the value of the counter C is 2 or more (step S765; Yes), the sound attenuating unit 38 attenuates the sound volume of the sound data related to the group name most recently acquired in step S762. After that (step S766), the process returns to step S762 again, and the group name with the next highest priority is acquired.

  Here, the case where the value of the counter C is 2 or more is a case where the terminal 30 belongs to a plurality of groups and broadcast transmissions are simultaneously made to each group. This is a situation that can occur in the terminals 30 included in a plurality of groups.

  On the other hand, if all group names have been acquired in step S762 (step S762; No), the process proceeds to step S77 in FIG.

  In step S77, the audio data stored in the reception audio table 342 is mixed by the audio mixing unit 39 (step S77) and output from the audio output unit 36 (step S78).

  Here, with reference to FIG. 18, the process performed to audio | voice data in step S766 and step S77 is demonstrated. In FIG. 18, each graph G indicates one packet of audio data stored in the reception audio table 342, and a rectangular bar B constituting the graph indicates one audio data. In each graph, the horizontal axis indicates time, and the vertical axis indicates the size (volume) of the audio data. As shown in FIG. 6, the priorities for each group are set as priorities 1, 2, and 3 for group 1, group 2, and group 3, respectively. The lower the numerical value, the higher the priority. It has become.

  FIG. 18A is a graph showing audio data corresponding to groups 1, 2, and 3, respectively. In this case, the sound output control process (step S76) described above attenuates the volume of the sound data of the group 2 and group 3 by a predetermined amount as shown in FIG. 18B. In this way, it is possible to vary the volume when audio data is output according to the priority order of the groups, so when one terminal receives simultaneous broadcast communication by voice from multiple groups Even in such a case, it is possible to reliably listen to the voice of the group set with a high priority.

  In the figure, the audio data of group 2 and group 3 are attenuated to the same volume, but not limited to this, the volume of group 3 having the lowest priority is attenuated from the audio data of group 2 It is also possible to make it.

  Next, in the mixing process executed in step S77, as shown in FIG. 18C, the audio data corresponding to each of the groups 1, 2, and 3 is mixed and generated as one audio data. .

  Returning to FIG. 16, it is determined whether or not transmission end information has been received from the server 10. If it is determined that the transmission end information has not been received (step S79; No), the process returns to step S74, and the audio data continues. Reception is performed. If it is determined in step S79 that the transmission end information has been received (step S79; Yes), the reception status display area of the group whose transmission end is confirmed on the transmission / reception operation screen displayed on the display unit 32. The character “receiving” displayed in A1 (see FIG. 12) is deleted (step S80), and this process ends.

As described above, according to the present embodiment, when the broadcast communication from the server 10 is received, based on the priority set in association with the group to which the source terminal of the broadcast communication belongs, In order to control the output of the voice received from the server, even if one terminal receives voice broadcasts from a plurality of groups at the same time, it can reliably listen to the voice of the group set with a high priority. can do.
In addition, since the setting is performed on the terminal side, it is possible to easily perform the work related to the setting change even when the use environment changes.

  The application of the present invention is not limited to the above-described example, and can be changed as appropriate without departing from the spirit of the present invention.

  For example, as shown in FIG. 19, the terminal 30 includes an audio wavelength modulation unit 41 that modulates the wavelength of audio data, and the audio wavelength modulation unit 41 varies the timbre of the audio data according to the priority of the group. It is good. In this case, as in the above-described embodiment, when a single terminal receives simultaneous broadcast communication by voice from a plurality of groups, it is possible to reliably listen to the voice of the group set with a high priority.

  In addition, the terminal 30 includes an audio output device 363 that can output stereo (2 channels), and also includes an audio channel switching unit 42 that switches an output channel of audio data, as shown in FIG. For example, the output channel of the audio data may be changed according to the priority order of the groups. In this case, as in the above-described embodiment, when a single terminal receives simultaneous broadcast communication by voice from a plurality of groups, it is possible to reliably listen to the voice of the group set with a high priority.

  Further, as shown in FIG. 21, the terminal 30 includes an audio phase modulation unit 43 that modulates the phase of audio data, and the audio phase modulation unit 43 uses the audio phase modulation unit 43 to output audio data according to the priority of the group. It is good also as an aspect which makes different. Here, the acoustic effect is, for example, to give a virtual three-dimensional effect to the sound field where the sound data is output, and the sound data set with high priority is set near and the priority is set low. The effect is that the recorded audio data is far away. In this case, as in the above-described embodiment, when a single terminal receives simultaneous broadcast communication by voice from a plurality of groups, it is possible to reliably listen to the voice of the group set with a high priority.

  In the above embodiment, one transmission right is set per group. However, the present invention is not limited to this, and a plurality of transmission rights may be set.

  Moreover, it is good also as an aspect by which the priority for every group set to each terminal is changed according to the instruction | indication from the server 10. FIG.

It is the figure which showed the structure of the broadcast communication system. It is the figure which showed the internal structure of the server. It is the figure which showed the internal structure of the terminal. It is a figure for demonstrating the procedure until broadcast communication is performed. It is the figure which showed the content of the group registration process typically. It is the figure which showed typically the content of the receiving group setting process and the delivery destination registration process. It is the ladder chart which showed the procedure of a receiving group setting process and a delivery destination registration process. It is the figure which showed typically the content of the audio | voice data transmission process and the broadcast delivery process. It is the figure which showed the content of the delivery process typically. It is the ladder chart which showed the procedure of an audio | voice data transmission process and a broadcast delivery process. It is the flowchart which showed the procedure of the delivery process. It is the figure which showed an example of the transmission / reception operation screen. It is the figure which showed typically the content of the process which concerns on reception of the audio | voice data in an audio | voice data reception process. It is the figure which showed typically the content of the process which concerns on the audio | voice output control in an audio | voice data reception process. It is the figure which showed typically the content of the process which concerns on the audio | voice output in an audio | voice data reception process. It is the flowchart which showed the procedure of the audio | voice data reception process. It is the flowchart which showed the procedure of the audio | voice output control process. . It is a figure for demonstrating audio | voice output control processing. It is the figure which showed typically the content of the process which concerns on the audio | voice output control in another aspect. It is the figure which showed typically the content of the process which concerns on the audio | voice output control in another aspect. It is the figure which showed typically the content of the process which concerns on the audio | voice output control in another aspect.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Broadcast communication system 10 Server 11 Control part 12 Display part 13 Operation part 14 Storage part 141 Distribution table 15 Voice packet transfer part 16 Transmission control part 20 Wireless communication apparatus 30 Terminal 31 Control part 32 Display part 33 Operation part 34 Storage part 341 Affiliation group table 342 Reception audio table 35 Audio input unit 36 Audio output unit 37 Audio data assembly / decomposition unit 38 Audio attenuation unit 39 Audio mixing unit 40 Transmission control unit 41 Audio wavelength modulation unit 42 Audio channel switching unit 43 Audio phase modulation unit 43

Claims (6)

A voice communication terminal that converts voice data from a server connected to a plurality of terminal groups via a communication line into voice and outputs the voice ,
A setting means for arbitrarily setting priority information for determining which terminal group has priority over a plurality of terminal groups ;
Receiving means for receiving audio data from the server ;
The voice data received by the receiving means is separated from the voice data for each terminal group, and the voice data of each terminal group is listened at the priority based on the priority information between the terminal groups set by the setting means. Voice mixing means for mixing so that it becomes easy voice,
Audio output means for outputting the audio mixed by the audio mixing means ;
Voice communication terminal, characterized by comprising a. 2. The voice communication according to claim 1, wherein the voice mixing unit performs mixing by changing a volume at the time of outputting voice of voice data for each terminal group with a priority based on the priority information. Terminal. 2. The voice communication according to claim 1, wherein the voice mixing means mixes the timbre when the voice of voice data for each terminal group is output with different priorities based on the priority information. Terminal. 2. The audio according to claim 1, wherein the audio mixing means mixes the output channels when outputting the audio of the audio data for each terminal group with different priority levels based on the priority information. Communication terminal. The voice according to claim 1, wherein the voice mixing means mixes the acoustic effect when the voice of the voice data for each terminal group is output with different priorities based on the priority information. Communication terminal. To a terminal computer that converts voice data from a server connected to a plurality of terminal groups via a communication line into voice and outputs it,
A setting function for arbitrarily setting priority information for deciding which terminal group has priority over a plurality of terminal groups ;
A receiving function for receiving audio data from the server ;
The received voice data is separated into voice data for each terminal group, and the voice data of each terminal group is made to be a voice that can be easily heard with a priority based on the priority information between the set terminal groups. Voice mixing function to mix,
An audio output function for outputting the mixed audio ;
A program to realize

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