JP2017092608A - Telephone conversation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a speech voice from becoming hard to hear when outputting an external sound that is different from the speech voice, simultaneously with the speech voice.SOLUTION: A telephone conversation device (terminal 100) for a first speaker to talk with a second speaker comprises: input means (second voice receiving part 104) for inputting voice data (coded sequence B2) of the second speaker; adjustment means (content adjustment part 112) for adjusting an external sound (content V3) that is different from a voice of the second speaker, in accordance with characteristics of the voice (speech voice V2) of the second speaker; and output means (content output part 113) for outputting the adjusted external sound that is different from the voice of the second speaker.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a call device that provides an external sound such as music to a call partner in addition to a call.

  Conventionally, a technique for providing a sound (external sound) different from a speaker's voice (call voice) in a voice call using a mobile phone or the like has been proposed. For example, Patent Document 1 below discloses a telephone terminal device that can reproduce background music during a call.

JP 2005-217614 A

  When a sound source held in a device is reproduced by an external control signal, as in the telephone terminal device of Patent Document 1, a high-quality sound that does not deteriorate due to transmission can be reproduced from a device that holds the sound source. it can. However, when these sounds are used as background sounds during a voice call, high-quality background sounds stand out from the sounds including deterioration due to transmission, and the sounds may be difficult to hear.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a call device that does not make it difficult to hear a call voice when an external sound different from the call voice is output simultaneously with the call voice. To do.

In order to solve the above-described problems, the communication device of the present invention is a communication device that performs a call via a communication network, and an input unit that inputs a call sound and an external sound different from the call sound via the communication network. And adjusting means for adjusting the external sound input by the input means according to the characteristics of the call voice, and output means for outputting the external sound adjusted by the adjusting means together with the call voice.

  According to the present invention, since the external sound different from the voice of the other party is adjusted and output according to the characteristics of the other party's voice, the call voice is output when the external sound is output simultaneously with the call voice. Is not difficult to hear.

In the call device of the present invention, the adjustment unit may adjust an external sound different from the call voice according to a voice frequency band of the call voice.
According to this invention, by adjusting the external sound different from the voice of the other party in accordance with the voice frequency band of the other party's voice, it is possible to make an adjustment so as not to impair the voice of the other party. .

  Further, in the call device of the present invention, the adjusting unit may generate an external sound different from the call sound according to at least one of a type of a voice codec used for a call, a sampling rate, or a type of a communication device of a call partner. To adjust. As a result, it is possible to prevent the voice of the other party from being easily heard.

  Further, the adjusting means in the call device of the present invention specifies a predetermined band from the audio frequency band of the external sound based on the characteristics of the call voice, and adjusts the power in the predetermined band. As a result, even when an external sound different from the voice of the other party is output at the same time, it can be adjusted so as not to impair the ease of hearing the other party's voice.

  According to the present invention, the external sound different from the call voice is adjusted according to the characteristics of the call voice and output by adjusting the external sound different from the call voice. It becomes possible not to become difficult to hear.

It is a figure which shows schematic structure of the call system which concerns on the call device of this invention. It is a figure which shows the functional block of the communication apparatus of this invention. It is a hardware block diagram of the terminal which concerns on the communication apparatus of this invention. It is a flowchart which shows an example of the process performed in the telephone apparatus of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant descriptions are omitted.

  FIG. 1 is a diagram showing a schematic configuration of a call system according to the call device of the present invention. As shown in FIG. 1, in a call system, a call between a user 1 (first speaker) and a user 2 (second speaker) is performed. In the call system, a first terminal (terminal 100 described later) and a second terminal (the same configuration as terminal 200 and terminal 100 described later are preferable) are used as the call device. When user 1 uses the first terminal and user 2 uses the second terminal, a voice call between user 1 and user 2 is realized.

  In the call system, for example, the terminal 100 and the terminal 200 are configured to be communicable via the communication network 3 (communication network). Furthermore, the server 300 may be configured to be able to communicate with the terminal 100 and the terminal 200 via the communication network 3.

  An example of the operation outline of the call system will be described. For example, when the call voice V2 of the user 2 who is the other party of the user 1 is input to the terminal 200, the call voice V2 is encoded and then output as an encoded sequence and transmitted to the terminal 100. At the same time, an instruction signal for reproducing the content V3 (external sound different from the call voice) held in the terminal 100 is generated by an operation (user operation) of the terminal 200 of the user 2 and transmitted to the terminal 100. .

  Specifically, as shown in FIG. 1, in terminals 100 and 200, contents a to c, which are sets of contents, are held in association with instruction signals a to c for reproducing each content. Yes. The instruction signal corresponding to the content selected by the user 2 is transmitted to the terminal 100 of the user 1, and the content corresponding to the instruction signal is reproduced at the terminal 100, whereby the content desired by the user 2 can be reproduced at the terminal 100. it can. As a result, the user 1 can hear not only the call voice V2 of the user 2 but also the content V3 desired by the user 2. At the same time, the user 2 may be able to listen to the content V3. The set of contents held in the terminal 100 and the terminal 200 may all be the same. Further, at least content selected by the user 2 may be held in the terminal 100.

  Since the configurations of the terminal 100 and the terminal 200 are the same, the user 2 can hear not only the call voice V1 of the user 1 but also the content V3 desired by the user 1. At this time, the user 1 may also be able to listen to the content V3.

  Examples of the content V3 include sound effects and music such as BGM. However, the content V3 is not limited to music, but is an environmental sound such as a song of a bird or a bustle of a station, or a line. May be used.

  Here, in the call system, the content V3 can be adjusted based on the characteristics of the call voice V1 or V2. For example, when the user 1 listens to the call voice V2 and the content V3 at the same time, the communication system adjusts the voice frequency band and volume of the content V3 according to the voice frequency band of the call voice V2, thereby Even when listening to the content V3 at the same time, it is possible to prevent the user 1 from having difficulty in listening to the call voice V2.

  Note that the present invention can also be applied to a case where content is not held in the terminal 100. In that case, the content V4 may be held in the terminal 200 or the server 300 and transmitted to the terminal 100 in accordance with the operation of the user 2. The terminal 100 adjusts the audio frequency band and volume of the received content V4 according to the audio frequency band of the call audio V2. In this case, the content V3 in the following description is replaced with the content V4.

  FIG. 2 is a diagram showing functional blocks of the communication device of the present invention. As shown in FIG. 1, a call between the user 1 and the user 2 is performed by the terminal 100 (first terminal) as the first call device and the terminal 200 (second terminal) as the second call device. Done.

  As shown in FIG. 2, the terminal 100 includes a first speech input unit 101, a first speech encoding unit 102, a first speech transmission unit 103, a second speech reception unit 104 (input means), and a second Audio decoding unit 105, second audio output unit 106, first content reproduction instruction signal input unit 107, first content reproduction instruction signal transmission unit 108, second content reproduction instruction signal reception unit 109, and content holding unit 110, an audio characteristic holding unit 111, a content adjustment unit 112 (adjustment unit), and a content output unit 113 (output unit).

The first voice input unit 101 is a part for inputting the call voice V1 of one speaker (user 1 in FIG. 1). The first voice input unit 101 includes, for example, a microphone.
The first speech encoding unit 102 is a part that encodes the call speech V1 input to the first speech input unit 101 to generate an encoded sequence B1.

  The first voice transmission unit 103 is a part that transmits the call voice V <b> 1 encoded by the first voice encoding unit 102. Specifically, the first voice transmission unit 103 transmits a coded sequence B1 in which the call voice V1 is coded to the terminal 200.

The second voice receiving unit 104 is a part that receives the encoded call voice V2 of the other party (user 2 in FIG. 1). Specifically, the second voice receiving unit 104 receives a coded sequence B2 in which the call voice V2 of the user 2 is coded at the terminal 200.
The second speech decoding unit 105 is a part that decodes the encoded sequence B2 received by the second speech receiving unit 104.

  The second voice output unit 106 is a part that outputs a sound corresponding to the encoded sequence B2 decoded by the second voice decoding unit 105 (that is, the call voice V2 of the user 2). The second voice output unit 106 includes, for example, a speaker, and outputs a call voice V2. Thereby, the user 1 can hear the call voice V2 of the user 2.

  The first content reproduction instruction signal input unit 107 is a part that inputs a first content reproduction instruction signal C1 based on a user operation. The user operation is performed, for example, when the user 1 (FIG. 1) operates a device such as an operation panel or a touch panel provided in the terminal 100. In addition, as described above with reference to FIG. 1, for example, the user operation is an operation for selecting a sound desired by the user 1 as the content V3 from various contents a to c and the reproduction of the content V3 is stopped. Operation to perform. Further, a device such as the operation panel or the touch panel generates a first content reproduction instruction signal C1 corresponding to the content selected in response to a user operation, and the first content reproduction instruction signal C1 is the first content reproduction instruction. The signal is input to the signal input unit 107.

  The first content reproduction instruction signal transmission unit 108 is a part that transmits the first content reproduction instruction signal C1 input to the first content reproduction instruction signal input unit 107. Specifically, first content reproduction instruction signal transmission section 108 transmits first content reproduction instruction signal C1 to terminal 200.

  Instead of the first content reproduction instruction signal transmitting unit 108 transmitting the first content reproduction instruction signal, the first audio encoding unit 102 uses the call audio V1 for the content V3 indicated by the first content reproduction instruction signal C1. And the first audio transmission unit 103 may transmit the encoded first audio. Alternatively, a superimposition processing unit is arranged between the first audio input unit 101 and the first audio encoding unit 102, and the superimposition processing unit reproduces the content V3 output from the content holding unit 110 described later. The sound may be superimposed on the call voice V1 and transmitted from the first voice transmission unit 103 as the encoded sequence B1.

  Furthermore, when the terminal 200 does not hold the content desired by the user 1, a content transmission unit may be provided, and the content V4 output from the content holding unit 110 described later may be transmitted to the terminal 200. In this case, the content V3 in the following description is replaced with the content V4.

  Second content reproduction instruction signal receiving section 109 is a part that receives second content reproduction instruction signal C2 transmitted from terminal 200 (FIG. 1). The second content reproduction instruction signal C2 is generated by the user 2 (FIG. 1) in the same manner as the first content reproduction instruction signal C1, and the user 2 is obtained from various contents a to c held in the content holding unit 110 described later. Directs playback of the desired sound.

  The content holding unit 110 is a part that holds content V3 that is an external sound different from the call voice. Specifically, as shown in FIG. 1, the content holding unit 110 holds various contents a to c and the like in association with the contents a to c and the reproduction instruction signals a to c. When content holding unit 110 receives first content reproduction instruction signal C1 or second content reproduction instruction signal C2, content holding unit 110 outputs content V3 corresponding to the reproduction instruction signal. For example, when the input first content reproduction instruction signal C1 is the reproduction instruction signal a instructing reproduction of the content a, the content holding unit 110 outputs the content a as the content V3. Needless to say, the content held by the content holding unit 110 is not limited to the predetermined content a to c. For example, a new set of content can be downloaded from an external server and used as the content V3. it can.

  Further, the content V4 transmitted from the external server or the terminal 200 may be input to the content holding unit 110 instead of the second content reproduction instruction signal C2. In that case, the content holding unit 110 outputs the received content V4. In this case, the content V3 in the following description is replaced with the content V4.

  The voice characteristic holding unit 111 is a part that holds the voice characteristics of the other party. Specifically, the characteristics held in the voice characteristics holding unit 111 are a codec used for a call, a sampling rate, and a voice frequency band. Or the kind of telephone apparatus which the other party is using, for example, a fixed telephone or a smart phone model, may be used. Generally, it is possible to grasp the audio frequency band based on the codec and the sampling rate. Also, the voice frequency band used differs depending on whether it is a fixed phone or a mobile phone, and furthermore, the voice frequency band used may differ depending on the model of the mobile phone. You may make it leave.

  This characteristic is preferably acquired at the start of a call, and the type of codec, sampling rate, and type of communication device (whether it is a fixed telephone) can be acquired when establishing a communication session. At this time, it is possible to know the characteristics of the call voice V2 output from the codec used for the call, the sampling rate, the voice frequency band, and the type of the call device.

  Further, the characteristic held in the voice characteristic holding unit 111 may be obtained by analyzing the decoded second voice. As the characteristics, for example, the distribution of voice frequencies included in the call voice V2, the volume level, and the like can be considered. By performing the analysis of the call voice V2 sequentially, the content adjustment unit 112 described later can perform dynamic control. In this case, an audio analysis unit may be provided instead of the audio characteristic holding unit 111, and the analysis result may be sequentially input to the content adjustment unit 112. The content adjustment unit 112 may perform adjustment according to one of the distribution of the audio frequency included in the second audio and the volume level, or may perform adjustment according to both.

  The content adjustment unit 112 is a part (adjustment unit) that adjusts the content V3 output from the content holding unit according to the voice characteristics of the other party. Specifically, when the content V3 stands out from the call voice V2 and the call voice V2 and the content V3 are output simultaneously, the voice frequency band and volume of the content V3 are prevented so that the call voice V2 is not easily heard. Adjust. For example, adjustments may be made such that the content V3 does not include sound in a voice frequency band higher than that of the call voice V2, or the power of a high voice frequency band (a predetermined range of voice frequency band) is reduced. It is done.

  Furthermore, the content adjustment unit 112 determines that the power for each audio frequency band of the content V3 exceeds the power for each audio frequency band of the reference call voice V2 by a predetermined ratio (x%) for each band. The power in each voice frequency band may be lowered by a predetermined amount (f (x) [dB]). Thereby, fine adjustment control of the content V3 according to the call voice V2 can be made possible.

  The adjustment method performed by the content adjustment unit 112 may be general audio processing such as dynamics processing, filtering processing, and equalizing processing, or may be encoding and decoding processing. In the case of encoding and decoding processes, it is preferable to use the same encoding and decoding methods used for voice calls.

  The content adjustment unit 112 may change the adjustment method including the presence / absence of adjustment when a specific condition is satisfied. For example, the control may not be adjusted depending on the codec used for the call (or light adjustment), or not adjusted depending on the audio frequency band included in the call voice V2 (or light adjustment). It is done. In that case, it is preferable that the characteristic is input from the voice characteristic holding unit 111. As another example, it is conceivable that the content V3 is not adjusted (or the adjustment is lightened) while the other party does not speak and the call voice V2 is not output. In this case, it is preferable that the encoded data of the call voice V2 or the decoded call voice V2 is input to the content adjustment unit 112. Here, making the adjustment light means that the frequency band to be adjusted is narrowed, the increase / decrease width of the power that is the adjustment amount is reduced, and the like.

  Further, the content adjustment unit 112 adjusts including the presence / absence of adjustment depending on whether the input content V3 is derived from the first content reproduction instruction signal C1 or the second content reproduction instruction signal C2. You may change the method. For example, in the case of being derived from the first content reproduction instruction signal C1, control such as not adjusting the content V3 (or making the adjustment light) is conceivable. In this case, it is preferable that information indicating whether the input content V3 is derived from the first content reproduction instruction signal C1 or the second content reproduction instruction signal C2 is input to the content adjustment unit 112. As the information, the first content reproduction instruction signal C1 and the second content reproduction instruction signal C2 may be directly input to the content adjustment unit 112.

  Furthermore, the content adjustment unit 112 may change the adjustment method including the presence / absence of adjustment according to an instruction from the user separately input. For example, the content adjustment unit 112 switches the presence / absence of adjustment by a user operation (or changes the degree of adjustment). Control) and the like. In that case, it is preferable that instruction information from the user via the user interface is input to the content adjustment unit 112.

  Instead of the content adjustment unit 112 performing the adjustment, the content adjustment may be realized by selecting a content adjusted in advance. In that case, it is desirable that the content adjusted in advance is held in the content holding unit 110 and the content is selected according to the characteristics input from the audio characteristic holding unit 111. Here, the adjustment performed in advance is preferably the same as the adjustment performed by the content adjustment unit 112.

  Note that the content adjustment unit 112 may directly input the content V4 received from the outside via the content holding unit 110 or not, instead of inputting the content V3 held by the content holding unit 110. . For example, the call partner transmits the content V4 instead of the second content playback instruction signal, and the content adjustment unit 112 receives the playback instruction signal input by the content V4 or transmitted by the call partner, A form in which the server transmits the content V4 and the content adjustment unit 112 inputs the content V4 is conceivable. In this case, the content V3 in the following description is replaced with the content V4.

  The content output unit 113 is a part that outputs the content V3 input from the content adjustment unit 112. The content output unit 113 includes a speaker, for example. Specifically, the content output unit 113 outputs the content V3. Thereby, the user 1 can hear the reproduction sound of the content V3 desired by the user 2.

  Instead of outputting the reproduction sound of the content V3, the content output unit 113 superimposes the reproduction sound of the content V3 on the decoded call voice V2, and outputs the superimposed call voice from the second audio output unit 106. Also good. In that case, it is preferable that the reproduction sound of the content V3 output from the content adjustment unit 112 is superimposed between the second audio decoding unit 105 and the second audio output unit 106.

  Here, the hardware configuration of the terminal 100 will be described with reference to FIG. FIG. 3 is a hardware configuration diagram of the terminal 100. As shown in FIG. 3, the terminal 100 physically includes one or a plurality of CPUs (Central Processing Units) 21, a RAM (Random Access Memory) 22 and a ROM (Read Only Memory) 23, which are main storage devices, Hardware such as a communication module 26 that is a data transmission / reception device, an auxiliary storage device 27 such as a semiconductor memory, an input device 28 that accepts user input such as an operation panel (including operation buttons) and a touch panel, and an output device 29 such as a display. It can comprise as a computer provided with. Each function of the terminal 100 in FIG. 2 includes, for example, reading one or a plurality of predetermined computer software on hardware such as the CPU 21 and the RAM 22, thereby controlling the communication module 26, the input device 28, This can be realized by operating the output device 29 and reading and writing data in the RAM 22 and the auxiliary storage device 27. Note that the terminal 200 can have the same hardware configuration as the terminal 100.

  Next, with reference to FIG. 4, the operation of the call device according to the present invention (call method executed by the terminal 100) will be described. FIG. 4 is a flowchart illustrating an example of processing executed in the terminal 100. The process of this flowchart is executed during a call between the user 1 (FIG. 1) using the terminal 100 and the user 2 using the terminal 200.

  As shown in FIG. 4, in the terminal 100, a plurality of four processing flows (S101 to S103, S104 to S109, S110 to S112, S113 to S117) can be executed in parallel.

  First, the processing flow of S101 to S103 will be described. First, in the terminal 100, the first voice is input (step S101). Specifically, the first voice input unit 101 inputs the call voice V1 of the user 1.

  Furthermore, the terminal 100 encodes the first voice (step S102). Specifically, the first voice encoding unit 102 encodes the call voice V1 of the user 1.

  Furthermore, terminal 100 transmits the encoded sequence (step S103). Specifically, the first audio transmission unit 103 transmits the encoded sequence B1 to the terminal 200.

  Next, the processing flow of S104 to S109 will be described. First, in the terminal 100, a first content reproduction instruction signal is input (step S104). Specifically, the first content reproduction instruction signal input unit 107 inputs the first content reproduction instruction signal C1 based on a user operation.

  Furthermore, terminal 100 transmits a first content reproduction instruction signal (step S105). Specifically, first content reproduction instruction signal transmission section 108 transmits first content reproduction instruction signal C1 to terminal 200.

  When terminal 200 does not hold the content desired by user 1, content V4 may be transmitted to terminal 200 instead of first content reproduction instruction signal C1. In this case, the content V3 in the following description is replaced with the content V4.

  Further, the terminal 100 reads content (step S106). Specifically, the content holding unit 110 outputs the content V3 instructed by the first content reproduction instruction signal C1 among the held content, and the content adjustment unit 112 reads the content V3.

  Further, the terminal 100 reads the voice characteristics (step S107). Specifically, the voice characteristic holding unit 111 outputs the held voice characteristic of the other party, and the content adjustment unit 112 reads it. When the characteristic held in the voice characteristic holding unit 111 is obtained by analyzing the decoded call voice V2, the process of step S107 is executed after the process of step S111 described later is executed.

In addition, about the process of said step S106, S107, the process of step S107 may be performed after the process of step S106 is performed, or the process of step S106 is performed after the process of step S107 is performed. Also good.
Further, the terminal 100 adjusts the content (step S108). Specifically, the content adjustment unit 112 adjusts the content V3 output from the content holding unit according to the voice characteristics of the other party.

  Furthermore, the terminal 100 outputs the adjusted content (step S109). Specifically, the content output unit 113 outputs the adjusted content V3.

  In addition, about the process of said step S105, S106-S109, after the process of step S105 is performed, the process of step S106-S109 may be performed, and after the process of step S106-S109 is performed, step S105 is performed. These processes may be executed.

  Next, the processing flow of S110 to S112 will be described. First, the terminal 100 receives the call voice V2 (step S110). Specifically, the second audio receiving unit 104 receives the encoded sequence B2.

  Furthermore, the terminal 100 decodes the call voice V2 (step S111). Specifically, the second speech decoding unit 105 decodes the encoded sequence B2.

  Furthermore, the terminal 100 outputs the call voice V2 (step S112). Specifically, a sound corresponding to the decoded coded sequence B2 (that is, the call voice V2 of the user 2) is output.

  Next, the processing flow of S113 to S117 will be described. First, the terminal 100 receives a second content reproduction instruction signal (step S113). Specifically, the second content reproduction instruction signal receiving unit 109 receives the second content reproduction instruction signal C2.

  Furthermore, the terminal 100 reads content (step S114). Specifically, the content holding unit 110 outputs the content V3 indicated by the second content reproduction instruction signal C2 among the held content, and the content adjustment unit 112 reads the content V3.

  In step S113 and step S114, the content V4 transmitted from the terminal 200 or an external server may be received and output instead of the second content reproduction instruction signal C2. In this case, the content V3 in the following description is replaced with the content V4.

  Further, the terminal 100 reads the voice characteristics (step S115). Specifically, the voice characteristic holding unit 111 outputs the held voice characteristic of the other party, and the content adjustment unit 112 reads it. When the characteristic held in the voice characteristic holding unit 111 is obtained by analyzing the decoded call voice V2, the process of step S115 is executed after the process of step S111 is executed.

In addition, about the process of said step S114, S115, the process of step S115 may be performed after the process of step S114 is performed, or the process of step S114 is performed after the process of step S115 is performed. Also good.
Further, the terminal 100 adjusts the content (step S116). Specifically, the content adjustment unit 112 adjusts the content V3 output from the content holding unit according to the voice characteristics of the other party.

  Furthermore, the terminal 100 outputs the adjusted content (step S117). Specifically, the content output unit 113 outputs the adjusted content V3.

  After executing the above-described four systems of processing flows (S101 to S103, S104 to S109, S110 to S112, S113 to S117), the terminal 100 executes the four systems of processing flows again (can be performed in parallel). In this way, the call between the user 1 and the user 2 is advanced by repeatedly executing the processing of the flowchart of FIG.

  Next, the effect of the terminal 100 will be described. In the terminal 100, the first voice input unit 101 inputs the call voice V1 of the user 1 (step S101), the first voice encoding unit 102 encodes the call voice V1 (step S102), and the first voice transmission unit 103. Is transmitted as an encoded sequence B1 that is a call voice V1 encoded (step S103).

  The second voice receiving unit 104 receives the encoded sequence B2 that is the encoded voice V2 of the user 2 (step S110), and the second voice decoding unit 105 decodes the encoded sequence B2 (step S110). S111), the second audio output unit 106 outputs a sound corresponding to the decoded encoded sequence B2 (that is, the voice 2 of the user 2) (step S112).

  The first content reproduction instruction signal input unit 107 inputs the first content reproduction instruction signal C1 based on a user operation (step S104), and the first content reproduction instruction signal transmission unit 108 receives the first content reproduction instruction. The signal C1 is transmitted (step S105), and the second content reproduction instruction signal receiving unit 109 receives the second content reproduction instruction signal C2 (step S113), and the content holding unit 110 holds the first content reproduction. The content V3, which is an external sound different from the call voice corresponding to the instruction signal C1 or the second content playback instruction signal C2, is output (step S106 or S114), and the voice characteristic holding unit 111 outputs the voice characteristic of the other party. (Step S107 or S115), the content adjustment unit 112 receives the content V3. Adjusted according to the characteristics of the voice of the other party (step S108 or S116), the content output unit 113 outputs the adjusted contents V3 (step S109 or S117).

  The process (step S108 or S116) executed by the content adjustment unit 112 is a process of adjusting the content V3, which is an external sound different from the call voice V2 of the call partner, according to the characteristics of the call partner voice. According to the terminal 100, for example, the content adjustment unit 112 is predetermined from the audio frequency band of the external sound different from the voice of the other party based on the audio codec used for the call or the audio frequency band of the other party's voice. By specifying the bandwidth of the device and adjusting the power in that bandwidth, it is possible to prevent the other party's voice from being easily heard even when external sound different from the other party's voice is output at the same time. it can.

  The present invention is not limited to the embodiment described above. A configuration in which the features included in the respective embodiments and processing steps included in the embodiment are appropriately combined can also be used as the embodiment of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Terminal, 101 ... 1st audio | voice input part, 102 ... 1st audio | voice encoding part, 103 ... 1st audio | voice transmission part, 104 ... 2nd audio | voice receiving part, 105 ... 2nd audio | voice decoding part, 106 ... 2nd audio | voice Output unit 107: First content reproduction instruction signal input unit 108: First content reproduction instruction signal transmission unit 109: Second content reproduction instruction signal reception unit 110: Content holding unit 111: Audio characteristic holding unit 112 ... Content adjustment unit, 113 ... Content output unit, 200 ... Terminal, 300 ... Server.

Claims (4)

In a call device that makes a call via a communication network,
Input means for inputting call voice and external sound different from the call voice via the communication network;
Adjusting means for adjusting the external sound input by the input means according to the characteristics of the call voice;
Output means for outputting the external sound adjusted by the adjusting means together with the call voice;
A communication device comprising: The adjusting means adjusts an external sound different from the call voice according to a voice frequency band of the call voice;
The call device according to claim 1. The adjusting means adjusts an external sound different from the call voice according to at least one of a type of a voice codec used for a call, a sampling rate, or a type of a communication device of a call partner;
The call device according to claim 1. The adjusting means specifies a predetermined band from the audio frequency band of the external sound based on the characteristics of the call voice, and adjusts power in the predetermined band.
The communication device according to any one of claims 1 to 3.

Images