JPH10215331A - Voice conference system and its information terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a voice conference system in which a speaker is easily specified and contents of utterance is easily heard in the case of hearing a recorded voice. SOLUTION: Each of multimedia personal computers PC3a-3c processes an inputted voice of a speaker into voice data and transmits a voice packet including identification information of respective speakers to a LAN channel 4. Each of the PCs3a-3c reproduces a voice from the voice data included in the received voice packet, specifies the speaker based on the identification information of the speaker in the PC and displays the name on a display 34. Furthermore, a voice conference recorder 2 stores the voice packet to a storage device 1 and transmits the voice packet to a request origin PC corresponding to a request from each of the PCs3a-3c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice conference system for connecting a plurality of information terminals having voice input / output functions to each other via a communication line to realize a conference by voice, and to an information terminal device thereof.

[0002]

2. Description of the Related Art In recent years, some telephone systems which have been rapidly developed have various added values, and an example thereof is a voice conference system. This is realized, for example, as an additional function of a private branch exchange (PBX) installed in a business establishment, and realizes a conference by a plurality of participants by forming a communication path between a plurality of telephones accommodated in the PBX. It is. Also, by connecting a voice recording device such as a voice mail device to the PBX, it is possible to record the contents of remarks of each participant.

[0003] In the conventional voice conference system, voice is only exchanged via a telephone. In other words, participants in the conference must identify the speaker only by relying on the characteristics of the speaker's voice (tone, pitch, etc.). For this reason, it is difficult to recognize who the speaker is, especially when a meeting is held by a large number of people. Further, when a plurality of people speak at the same time, voices are duplicatedly recorded on the voice mail device, and there is a problem that when the meeting contents are heard after the meeting, the contents of the speech may not be heard. Was.

[0004]

As described above, in the conventional conference system, it is difficult for each participant to recognize who is speaking. In addition, when listening to the recorded voice, there is a problem that the contents of the remark may not be heard. Therefore, an object of the present invention is to provide a voice conference system and an information terminal device which can easily identify a speaker and easily hear the content of a voice when listening to a recorded voice. is there.

[0005]

In order to achieve the above object, the present invention uses the following means. (1) An audio conference system according to the present invention, in an audio conference system for performing audio conference communication between a plurality of information terminal devices via a communication line, wherein the information terminal device on the transmitting side of the plurality of information terminal devices includes: Voice data generating means for converting a voice signal of a sender into voice data; and generating voice packets by inserting the identification information of the transmitter into voice data obtained by the voice data generating means. Voice packet transmitting means for transmitting the data to the communication line, and transmitting the voice transmitted from another information terminal device through the communication line to the receiving side information terminal device of the plurality of information terminal devices. Voice packet receiving means for receiving a packet; and reproducing and outputting a voice signal based on voice data contained in the voice packet received by the voice packet receiving means. Voice reproducing means for extracting identification information from a voice packet received by the voice packet receiving means, identifying a speaker based on the identification information, and transmitting the identification result to a voice signal by the voice reproducing means. And a notifying unit for notifying the receiver in correspondence with the loudspeaker output of the receiver.

As a result, according to the present invention, a voice packet in which the identification information of the sender is added to the voice data is transmitted from the information terminal device on the transmitting side.
The sender is identified based on the identification information extracted from the voice packet, and is notified to the receiver. Therefore, the receiver can listen to the utterance after clearly recognizing who the utterer is currently speaking.

(2) A voice conference system according to the present invention comprises: a plurality of information terminal devices interconnected via a communication line;
In a voice conference system including these information terminal devices and a voice conference recording device connected via the communication line, a voice of a talker is transmitted to the information terminal device on the transmitting side of the plurality of information terminal devices. Voice data generating means for converting a signal into voice data, and inserting the identification information of the sender into voice data obtained by the voice data generating means to generate a voice packet, and transmitting the voice packet to the communication line. Voice packet transmitting means for transmitting, and in the voice conference recording device, voice packet recording means for receiving and recording voice packets transmitted from the information terminal device via the communication line, When a request to reproduce an audio packet is sent from an information terminal device that desires to reproduce an audio packet among the information terminal devices, the recorded audio packet is Voice packet reproducing means for transmitting the voice packet to a communication line directed to the information terminal device requesting the reproduction, and transmitting the voice packet reproduction request to the information terminal device wishing to reproduce the voice packet. Playback request sending means for sending to a communication line directed to a recording device; and a playback audio packet for receiving a playback audio packet sent from the audio conference recording device in response to sending a playback request by the playback request sending means. Receiving means, audio reproducing means for reproducing an audio signal based on the audio data contained in the reproduced audio packet received by the reproduced audio packet receiving means and outputting a loudspeaker, and receiving by the reproduced audio packet receiving means The identification information is extracted from the reproduced audio packet, and the sender is identified based on the identification information, and the identification result is transmitted to the audio reproduction means. Characterized by providing a notification means for notifying the listener in association with the loudspeaker output of the audio signal that.

As a result, according to the present invention, even when the user of the information terminal device sends a reproduction request to the audio conference recording device after the end of the conference, for example, to reproduce and listen to the recorded conference audio on the own information terminal device. The speaker of the reproduced audio packet is identified based on the identification information included in the reproduced audio packet sent from the audio conference recording device, and this is reported to the user. Therefore, even when the user plays and listens to the conference audio recorded in the audio conference recording device, the user can clearly recognize the speaker.

(3) The audio conference system according to the above (2), in the audio conference system according to the above (2), includes information for designating a range in which the audio packet is desired to be reproduced in the information terminal device which desires to reproduce the audio packet. A function for sending a playback request is provided, and information for designating a playback range is extracted from the playback request when the playback request arrives at the audio conference recording device, and audio corresponding to the range specified by the information is extracted. A function of selectively reproducing a packet and transmitting the packet to a communication line toward the information terminal device requesting the reproduction is provided.

As a result, according to the present invention, for example, it is possible to designate and extract only a voice packet based on a speech of a specific speaker from the voice conference recording apparatus. For this reason, it is possible to selectively listen only to the utterance of a specific speaker.

(4) The information terminal device of the present invention is a voice conference system for performing voice conference communication between a plurality of information terminal devices via a communication line. Voice data generating means for converting the voice data into voice data, and generating voice packets by inserting the identification information of the sender into voice data obtained by the voice data generating means, and transmitting the voice packets to the communication line. Voice packet transmitting means, voice packet receiving means for receiving a voice packet transmitted from another information terminal device via the communication line, and voice data included in the voice packet received by the voice packet receiving means Voice reproducing means for reproducing a voice signal based on the voice signal and outputting the voice signal; and identifying information from the voice packet received by the voice packet receiving means. And a notifying unit for notifying the receiver based on the identification information to identify the sender and associating the identification result with the loudspeaker output of the audio signal by the audio reproducing unit. Features.

As a result, according to the present invention, it is possible to provide an information terminal device having the same operation and effect as the above (1). (5) The information terminal device of the present invention, as the notifying means in the information terminal device according to the above (4), means for outputting a voice message representing the name of the speaker in a loud voice, and transmitting the message representing the name of the speaker. Means for displaying on a display unit, or means for selectively reading information representing a portrait of a corresponding speaker from a memory in which information representing a plurality of portraits of a sender is stored in advance and displaying the information on a display unit. It is characterized by. As a result, according to the present invention, the receiver can more easily recognize who is currently speaking.

[0013]

FIG. 1 shows the configuration of a voice conference system according to an embodiment of the present invention. The audio conference system according to the present embodiment includes an audio conference recording device 2 having a storage device 1 and multimedia personal computers (hereinafter abbreviated as PCs) 3a to 3c each having an audio input / output function.
(Local Area Network) are connected to each other via a line 4. Each of the PCs 3a to 3c has a function of controlling connection with another PC, and forms a LAN together with the audio conference recording device 2.

FIG. 2 shows the PC 3a and the audio conference recording device 2
The detailed configuration of is shown. The PCs 3b and 3c have the same configuration as the PC 3a. PC3a is the microphone 3
0, an audio output unit 33 to which a speaker 32 is connected, a display control unit 35 to which a display 34 is connected, an input / output control unit 36, an identification information management unit 3.
7, a communication control unit 38, a voice / packet conversion unit 39, and a main control unit 40.

The voice input unit 31 supplies the voice signal of the speaker converted to the voice signal by the microphone 30 to the input / output control unit 36. The audio output unit 33 reproduces an audio signal given via the input / output control unit 36 as audio via the speaker 32. The display control unit 35 includes the input / output control unit 3
6 is displayed on the display 34. The input / output control unit 36 is controlled according to an instruction from the central control unit 40, and operates as an input / output interface. The identification information management unit 37 is a database for storing the address information of each of the PCs 3a to 3c in one-to-one correspondence with the character information of the name of the speaker in each PC. Note that audio information representing the name of the speaker or image data representing the portrait of the speaker may be stored in association with the address information of each of the PCs 3a to 3c.

The communication control unit 38 is controlled in accordance with an instruction from the main control unit 40, and operates as a transmission / reception interface. The voice / packet converter 39 extracts voice data from the received voice packet according to the instruction of the main controller 40, and adds various control information to the voice data generated by the main controller 40 to convert the voice packet. To generate.

The main control unit 40 has, for example, a microcomputer as its main component, and has well-known control functions necessary for communicating with other PCs, as well as voice data generation means 40a and speaker identification means 40b. , An audio data reproducing unit 40c, a notifying unit 40d, and a requesting unit 40e. These means are realized by software processing.

The audio data generating means 40a
6 is converted into digital data of a predetermined signal format. Here, only a sound portion of the audio signal is converted into data by a known technique. The speaker identification unit 40b refers to the information stored in the identification information management unit 37 based on the identification information of the speaker of each PC included in the audio packet received via the communication control unit 36, and This specifies the speaker. The audio data reproducing means 40c extracts audio data included in the received audio packet, and reproduces and outputs audio from the speaker 32 based on the audio data. The notifying unit 40d displays the name of the speaker specified by the speaker identifying unit 40b on the display 34 during voice reproduction. The requesting unit 40e requests the audio conference recording device 2 to transmit the audio packets stored in the storage device 1. The requesting unit 40e requests all the audio packets in accordance with the operation of the user, or requests a specific speech. The user can select whether to request a voice packet based on the speech of the user.

On the other hand, the audio conference recording device 2 comprises a storage device 1, a display 20, a keyboard 21, an input / output control unit 22, a communication control unit 23, and a central control unit 24. The storage device 1 stores voice packets transmitted to the LAN line in accordance with an instruction from the central control unit 24. The input / output control unit 22 is controlled in accordance with an instruction from the central control unit 24, and controls the display 20 and the keyboard 2
1 is generally controlled. The communication control unit 23
It is controlled in accordance with an instruction from the central control unit 24 and operates as a transmission / reception interface.

The central control unit 24 has, for example, a microcomputer as its main component and includes an audio packet recording unit 24a and an audio packet transmitting unit 24b. These means are realized by software processing.

The voice packet recording means 24a stores voice packets arriving via the LAN line 4 in the storage device 1 in the order of arrival. The voice packet transmitting means 24b reads out the voice packet stored in the storage device 1 in response to a request from each of the PCs 3a to 3c, and
To be sent.

Next, the operation of the system configured as described above will be described. First, a connection control procedure of each PC when a conference is held between users of the PCs 3a to 3c will be described. First, the organizer of the meeting sends a call from the PC (for example, 3a) in his / her seat to the PC 3b to notify that the meeting will be held. When the user of the PC 3b responds, the PC
3b returns a response signal to PC 3a. Upon receiving this response signal, the PC 3a similarly transmits to the PC 3c, and also notifies the PC 3b of the address information. On the other hand, when the response signal is returned from the PC 3c, the PC 3a finally notifies the PC 3b of the address information of the PC 3c.

In this way, a connection is established between the PCs 3a to 3c, and each PC can recognize which PC is participating in the conference. At this time, each PC
Stores address information of each other PC in a storage means (not shown) such as a RAM, for example.

Next, the operation of each PC when a conference is actually being held will be described. FIG. 3 shows the flow of a voice packet during a conference. It is assumed that the user of the PC 3b has made a comment. Then, the PC 3b converts the voice input from the microphone 30 into data at regular intervals, adds control information thereto, and generates fixed-length voice packets B1 to B3. Each of the voice packets B1 to B3 is divided into a header section and a data section, and the header section stores normal control information such as address information of a destination PC and address information of a transmission source PC. On the other hand, in the data section, identification information for identifying the speaker of the transmission source PC is stored together with the converted voice signal. FIG. 4 shows the format of each audio packet. That is, the identification information of the speaker of the transmission source PC is stored in the frontmost part of the data part.

The PCs 3a and 3c receive the voice packets B1 and B2 respectively, convert the voice data of these data portions into voice signals, and specify the speaker from the identification information of the speaker of the PC 3b included in the header portion. And
The name of the speaker is displayed on the display 34. Next, the sound is reproduced and output from the speaker 32. On the other hand, the audio conference recording device 2 stores the received audio packet B3 in the storage device 1 according to the setting. This procedure will be described later.

Next, the procedure of the operation performed by the audio conference recording apparatus 2 will be described with reference to the flowchart of FIG. The audio conference recording device 2 is used during or after the conference is held.
It waits for a request signal from any of PCs 3a to 3c. Upon receiving the request signal, the audio conference recording device 2 determines the request type in step 4a.
Here, when it is determined that the request type is “record”, the audio conference recording device 2 proceeds to step 4b to determine the processing type. If it is determined that "recording starts", the audio conference recording apparatus 2 proceeds to step 4c to register the address information of each of the PCs 3a to 3c added to the request signal and to set the start time of the conference. The file for recording and recording the audio data is opened, and the process returns to step 4a. On the other hand, if "recording end" is determined in step 4b, the audio conference recording device 2 proceeds to step 4d, and the registered PCs 3a to 3P
The address information of C3c is deleted, the name of the conference attendee and the conference end time are recorded, and the corresponding file is closed.

On the other hand, if it is determined in step 4a that the request type is "voice packet", the voice conference recording apparatus 2 proceeds to step 4e to capture the transmitted voice packet, and in step 4f The speaker of the source PC of the voice packet is identified. This is the source PC attached to the received voice packet.
Is performed based on the identification information of the speaker. Next, the audio conference recording device 2 proceeds to step 4g, records the identification information of the speaker of the transmission source PC in the corresponding file, and records audio data in step 4h.
The process returns to step 4a.

On the other hand, if it is determined in step 4a that the request type is "reproduction", the audio conference recording device 2 proceeds to step 4i to determine the reproduction type.
If the determination is "all attendees", the audio conference recording device 2 sequentially reads out the audio packets recorded in the storage device 1 in step 4j, and sends it to the requesting PC in step 4k. A voice packet is transmitted to the user. Next, the audio conference recording device 2 determines whether or not there is a next audio packet to be transmitted in step 41, and if it is determined that there is no next audio packet, the process proceeds to step 4n and an end notification signal Is sent to the requesting PC. On the other hand, if it is determined in step 41 that there is a next packet, the audio conference recording device 2 proceeds to step 4m and determines whether there is a request from the PC to stop reproduction. If it is determined that there is a request, the audio conference recording device 2 proceeds to step 4n and sends an end notification signal to the requesting PC. On the other hand, if there is no request to stop reproduction, the audio conference recording device 2 returns to step 4j again and the subsequent processing is repeated.

Here, a description will be given of the flow of a packet when voices of all attendees are reproduced. As shown in FIG. 6, in the storage device 1, audio packets A1, B1, C1, A2, B
2 and C2 are stored. Here, voice packets A1,
A2 is based on the statement of the speaker of PC3a, and B2
1 and B2 are based on the statements of the speaker of the PC 3b, and C1 and C2 are based on the statements of the speakers of the PC 3c. When the audio conference recording device 2 receives, for example, from the PC 3b a signal requesting reproduction of the speeches of all the attendees,
The voice packets A1, B1, and C1 are read out and synthesized to generate a voice packet D1. In the header of the voice packet D1, identification information of the speakers of the PCs 3a, 3b and 3c, which are the sources of the voice packets A1, B1 and C1, is set. Next, the audio conference recording device 2 sends out the audio packet D1 to the requesting PC 3b.

The PC 3b receiving the voice packet D1
Specifies the speaker based on the identification information of the speaker of each PC stored in the header section of the voice packet D1, displays the name of the speaker on the display 34, and reproduces the voice of the data section from the speaker 32. I do.

On the other hand, the audio conference recording device 2 having transmitted the audio packet D1 immediately transmits the audio packets A2, B2, C
2 is read out and synthesized to generate a voice packet D2. Thereafter, the same processing is repeated, and thus, the statements of all the attendees of the conference can be reproduced on the PC 3b.

On the other hand, in FIG. 5, when it is determined that "speaker is selected" in step 4i, the audio conference recording device 2 proceeds to step 4o and sequentially reads the audio packets recorded in the storage device 1. . Next, the audio conference recording device 2 determines whether or not the audio packet read in step 4p belongs to the designated person based on the identification information of the speaker included in the audio packet, If it is determined that the person belongs to the person, the process proceeds to step 4q to transmit the voice packet to the requesting PC. Next, the audio conference recording device 2 determines whether or not there is a next audio packet to be transmitted in step 4r. If it is determined that there is no next audio packet, the process proceeds to step 4n to notify the end. The signal is sent to the requesting PC. On the other hand, if it is determined in step 4r that there is a next packet, the audio conference recording device 2 proceeds to step 4s and determines whether there is a request from the PC to stop reproduction. If it is determined that there is a request, the audio conference recording device 2 proceeds to step 4n and sends an end notification signal to the requesting PC. On the other hand, if there is no request to stop the reproduction, the audio conference recording device 2 returns to step 4o and the subsequent processing is repeated.

If it is determined that the voice packet read in step 4o is other than the person selected in step 4p, the voice conference recording apparatus 2 proceeds to step 4r. . In this way, it is possible to reproduce only the utterance of a specific utterer.

Here, the flow of a packet when the voice of a specific speaker is reproduced will be described with reference to FIG. FIG.
Similarly, in the storage device 1, the voice packets A1, B1,
C1, A2, B2, and C2 are stored. When the audio conference recording device 2 receives, for example, a signal from the PC 3b requesting reproduction of the speech of the speaker of the PC 3a, based on the address in the header and the identification information of the speaker in the data, the requested PC 3a is transmitted. Voice packet A corresponding to the speaker
1 and A2 are read out, and then these voice packets are transmitted to the requesting PC 3b.

The PC 3b receiving the voice packet D1
Specifies the speaker based on the identification information of the speaker in the data of the voice packets A1 and A2, displays the name of the speaker on the display 34, and reproduces the voice of the data portion from the speaker 32. Hereinafter, the same processing is repeated,
In this way, it is possible for the PC 3b to reproduce only the utterance of the speaker of the PC 3a.

The present invention is not limited to the above embodiment. For example, in the above embodiment, each of the PCs 3a to 3c
The display 34 displays the name of the speaker at the time of voice reproduction, but a memory for storing information representing the portrait of the speaker is provided. The read portrait of the speaker may be read and displayed, or the name of the speaker may be notified by voice from the speaker 32.

Further, the audio conference recording device 2 is provided as a voice packet recording means.
Any of C3a to 3c may be provided as an application. In addition, various modifications can be made without departing from the spirit of the present invention.

[0038]

According to the present invention, the voice input at each PC is converted into voice data, and a voice packet containing the identification information of the speaker of the source PC is generated. By transmitting and receiving the voice packet, a conference by voice is realized. For this reason, it becomes possible to specify the speaker on the PC that has received the voice packet. In addition, since the voice packet is stored in the storage device 1, it is possible to identify the speaker when listening to the speech after the meeting. Also a specific P
By reading out the voice packet to which the identification information of the speaker of C is added, it becomes possible to listen to only the content of the statement of the specific speaker.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a voice conference system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of the audio conference system according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a flow of a voice packet during a conference.

FIG. 4 is a diagram showing a format of each audio packet.

FIG. 5 is a flowchart showing a control processing procedure in the audio conference recording device 2.

FIG. 6 is a view for explaining the flow of a voice packet when voices of all attendees are reproduced.

FIG. 7 is a view for explaining the flow of a voice packet when only the voice of the speaker of the PC 3a is reproduced.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Storage device 2 ... Audio conference recording device 3a, 3b, 3c ... Multimedia PC 4 ... LAN line 20 ... Display 21 ... Keyboard 22 ... Input / output control unit 23 ... Communication control unit 24 ... Central control unit 24a ... Voice packet recording Means 24b Voice packet transmitting means 30 Microphone 31 Voice input unit 32 Speaker 33 Voice output unit 34 Display 35 Display control unit 36 Input / output control unit 37 Identification information management unit 38 Communication control unit 39 Speech / packet converter 40 ... Main controller 40a ... Speech data generator 40b ... Speaker identification means 40c ... Speech data reproduction means 40d ... Notification means 40e ... Request means A1, A2 ... Speech packets based on the speech of the speaker of PC3a B1, B2, B3... Voice packets based on the speech of the speaker of PC3b C1, C2. Voice packets D1 based on the speaker's remarks 3c, D2 ... synthesized speech packet

Claims (7)

[Claims] 1. A voice conference system for performing voice conference communication between a plurality of information terminal devices via a communication line, wherein the information terminal device on the transmitting side of the plurality of information terminal devices includes a voice signal of a talker. And voice data generating means for converting the voice data into voice data, and generating voice packets by inserting the identification information of the sender into voice data obtained by the voice data generating means,
Voice packet transmitting means for transmitting the voice packet to the communication line, wherein the information terminal device on the receiving side of the plurality of information terminal devices is transmitted from another information terminal device via the communication line. Voice packet receiving means for receiving the voice packet received, voice reproducing means for reproducing a voice signal based on voice data included in the voice packet received by the voice packet receiving means and loudspeaker output, The identification information is extracted from the voice packet received by the voice packet receiving means, the sender is identified based on the identification information, and the identification result is associated with the loudspeaker output of the voice signal by the voice reproduction means. An audio conference system comprising: a notification unit for notifying a user. 2. A voice conference system comprising: a plurality of information terminal devices connected to each other via a communication line; and a voice conference recording device connected to the information terminal devices via the communication line. The information terminal device on the transmitting side of the plurality of information terminal devices includes: voice data generating means for converting a voice signal of a sender into voice data; and transmitting the voice data to the voice data obtained by the voice data generating means. Generate voice packets by inserting
Voice packet transmitting means for transmitting the voice packet to the communication line, wherein the voice conference recording device receives and records the voice packet transmitted from the information terminal device via the communication line. Voice packet recording means, and when a request to reproduce an audio packet is sent from an information terminal device of the information terminal device which desires to reproduce the audio packet, the recorded audio packet is reproduced to perform the reproduction request. Voice packet reproducing means for transmitting the voice packet to the communication line for the original information terminal device, wherein the information terminal device wishing to reproduce the voice packet transmits a voice packet reproduction request to the voice conference recording device to the communication line. Means for transmitting a reproduction request for transmitting the reproduction request transmitted from the audio conference recording apparatus in response to transmission of the reproduction request by the reproduction request transmitting means. Reproduced audio packet receiving means for receiving an audio packet, and audio reproducing means for reproducing an audio signal based on the audio data contained in the reproduced audio packet received by the reproduced audio packet receiving means and outputting the amplified signal. Extracting identification information from the reproduced voice packet received by the reproduced voice packet receiving means, identifying the speaker based on the identification information, and outputting the identification result to the loudspeaker output of the voice signal by the voice reproducing means. And a notification means for notifying the receiver of the audio conference in a corresponding manner. 3. The information terminal device that desires to reproduce the audio packet has a function of transmitting a reproduction request including information designating a range in which reproduction is desired. When it arrives, extract the information specifying the playback range from this playback request,
3. The audio conference system according to claim 2, further comprising a function of selectively reproducing an audio packet corresponding to the range specified by the information and transmitting the reproduced audio packet to a communication line directed to the information terminal device requesting the reproduction. . 4. The information terminal device of the audio conference system for performing audio conference communication between a plurality of information terminal devices via a communication line, wherein: an audio data generating means for converting an audio signal of a sender into audio data; Generating a voice packet by inserting the identification information of the sender into the voice data obtained by the voice data generating means;
Voice packet transmitting means for transmitting the voice packet to the communication line; voice packet receiving means for receiving a voice packet transmitted from another information terminal device via the communication line; Voice reproducing means for reproducing a voice signal based on voice data included in the voice packet received by the means and outputting the voice signal, and extracting identification information from the voice packet received by the voice packet receiving means, A speaker for identifying the sender based on the identification information and notifying the receiver of the identification result in association with the loudspeaker output of the audio signal by the audio reproducing unit. Information terminal device for conference system. 5. The system according to claim 1, wherein the notifying means identifies the name of the sender based on the identification information, and outputs a voice message indicating the identified name of the sender in a loud voice. 5. The information terminal device of the audio conference system according to 4. 6. The system according to claim 1, wherein the notifying means identifies the name of the sender based on the identification information, and displays a message indicating the identified name of the sender on a display. Item 5. An information terminal device of the audio conference system according to Item 4. 7. The notifying means has a memory in which information indicating portraits of a plurality of senders is stored in advance, and selectively reads out information indicating a portrait of the sender corresponding to the identification result from the memory. The information terminal device of the audio conference system according to claim 4, wherein the information terminal device displays the information on a display device.