JP6736196B1 - Audio reproduction method, audio reproduction system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a more comfortable space to a user in a technique of reproducing a plurality of voices using different speakers. SOLUTION: A voice reproduction method (S1) is a data selection in which one or more processors select a plurality of voice data representing a voice belonging to a specific key from a voice data group stored in one or a plurality of storages. It includes a step (S102) and a reproduction step (S103) of reproducing the voice represented by each voice data selected in the data selection step (S102) by using different speakers. [Selection diagram] Figure 2

Description

The present invention relates to a technique for reproducing sound.

Playing background music (hereinafter referred to as "BGM") and other sounds in order to provide users with a more comfortable space in various facilities such as commercial spaces, hotels, restaurants, offices, exhibition halls, etc. Is widely practiced.

However, playing a single sound throughout the facility may give the user a monotonous impression. Therefore, it is possible to install a plurality of speakers in the facility and simultaneously reproduce a plurality of voices using different speakers.

For example, Patent Document 1 discloses a technique of providing different sounds for each table in a restaurant. In the technology described in Patent Document 1, for each table, a BGM of a genre suitable for a customer who eats or drinks at the table is automatically selected, and the selected BGM is played back using a speaker installed in the table. ..

Japanese Patent Laid-Open No. 2000-98950 (Published April 7, 2000)

However, the following problems may occur in the technique of reproducing a plurality of voices using different speakers. That is, a user in the overlapping area of the service areas of two or more speakers can hear two or more voices at the same time. As a result, the user may feel uncomfortable, and it may be difficult to achieve the original purpose of providing a more comfortable space to the user. For example, when two or more voices whose pitches are not in harmony are heard at the same time, many users feel uncomfortable.

One aspect of the present invention has been made in view of the above problems, and it is possible to provide a more comfortable space to a user in a technique of reproducing a plurality of voices using different speakers. To aim.

In order to solve the above problems, in a sound reproduction method according to an aspect of the present invention, one or a plurality of processors represents a sound belonging to a specific key from a sound data group stored in one or a plurality of storages. A data selection step of selecting a plurality of audio data and a reproduction step of reproducing the audio represented by each audio data selected in the data selection step by using different speakers are executed.

In order to solve the above problems, a sound reproduction system according to one aspect of the present invention includes one or more storages and one or more processors, and the processor is stored in the storages. A data selecting step of selecting a plurality of audio data representing audio belonging to a specific key from the audio data group, and a reproducing step of reproducing the audio represented by each audio data selected in the data selecting step using different speakers. And execute.

In order to solve the above problems, a program according to an aspect of the present invention causes a computer to execute the above-described audio reproduction method.

According to one aspect of the present invention, it becomes possible to provide the user with a more comfortable space.

It is a block diagram which shows the structure of the audio|voice reproduction system which concerns on embodiment of this invention. It is a flow chart which shows a flow of a voice reproducing method concerning an embodiment of the present invention. It is a block diagram which shows the example of a changed completely type of the audio reproduction system shown in FIG. 6 is a flowchart showing a modification of the audio reproducing method shown in FIG. 2.

[Embodiment]
<Definition of terms>
Before describing the embodiments of the present invention, the definitions of some terms appearing in the following description will be described.

(Key)
A key refers to a combination of a tonic and a scale, and is also called a key. The tonic is the central sound at that key. In addition, a scale is a sequence of notes arranged from a certain note to a note on its octave in a specific order, and examples thereof include major and minor keys. The key is expressed, for example, in C major or C minor using traditional Western music terms. Further, the key is expressed by a code name such as C (sea), Cm (sea minor), etc., using the terms such as jazz and popular music. In this specification, the latter term is used.

(Voice data)
Voice data refers to data representing voice. The voice may or may not compose music. An example of the sound that does not form a music is a sound material called stem. The voice data can be classified into data that represents a voice that belongs to a specific key and data that represents a voice that does not belong to a specific key. In addition, the audio data can be classified into data that represents tempo audio and data that represents non-tempo audio. In the present embodiment, audio data representing non-tempo audio that belongs to a specific key and audio data representing tempo audio that does not belong to a specific key are assumed to be main reproduction targets. The definitions of tempo voice and non-tempo voice will be described later.

(Key to which the voice belongs)
The key to which the voice belongs can be identified based on the combination of sounds included in the voice. Here, the combination of sounds may be a combination of sounds that are simultaneously reproduced (for example, a combination of sounds that form a chord), or a combination of sounds that are sequentially reproduced (for example, a combination of sounds that form a melody). Combination). The key to which the voice belongs may not be uniquely specified. For example, the sound composed of the C sound and its overtone can be regarded as the sound belonging to the C key or the sound belonging to the Cm key.

(Voice with tempo and voice without tempo)
The tempo voice is a voice including a series of sounds that control the tempo. The tempo voice can be rephrased as a voice that the listener feels the presence of tempo or rhythm. The tempo voice may be a voice that belongs to a specific key or a voice that does not belong to a specific key. An example of the tempo voice belonging to a specific key is a cutting guitar sound, for example. An example of the tempo voice that does not belong to a particular key is a drum sound. On the other hand, non-tempo voice refers to voice that does not include the progression of a series of sounds that control the tempo. The non-tempo voice can be rephrased as a voice in which the listener does not feel the presence of tempo or rhythm.

(Asynchronous playback)
Asynchronous reproduction of a plurality of voices means reproduction of a plurality of these voices with their reproduction start timings not coincident with each other and the reproduction periods thereof being overlapped. It should be noted that the mode in which the reproduction start timings of some of the plurality of sounds are matched is included in the asynchronous reproduction, but the mode of matching the reproduction timings in all of the plurality of sounds is not included in the asynchronous reproduction. For example, with respect to the sound for the right channel and the sound for the left channel, stereo reproduction in which these sounds are output from the left and right speakers at the same reproduction timing is not included in the asynchronous reproduction. The asynchronous reproduction of a plurality of voices is realized by, for example, starting the reproduction of each of the plurality of voices at a timing randomly determined for each voice.

<Structure of audio reproduction system 1>
The configuration of the audio reproduction system 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the audio reproduction system 1.

As shown in FIG. 1, the audio reproduction system 1 includes a computer 10, a storage 20, and a plurality of speakers 30_1, 30_2,..., 30_n. The number n of the plurality of speakers 30_1, 30_2,..., 30_n is arbitrary. The computer 10 is connected to the storage 20 via the network N1. Further, the computer 10 is connected to each speaker 30_i (i=1, 2,..., N) via a cable. The network N1 may be a wireless LAN (Local Area Network), a wired LAN, a mobile data communication network, a public line network, the Internet, or a combination of some or all of these.

In addition, in the present embodiment, the configuration in which the audio data is provided from the computer 10 to each speaker 30_i as an analog signal is adopted, but the present invention is not limited to this. That is, a configuration may be adopted in which audio data is provided from the computer 10 to each speaker 30_i as a digital signal. In this case, the computer 10 may be connected to each speaker 30_i via the network N1.

(Configuration of computer 10)
The computer 10 includes a processor 101, a main memory 102, an auxiliary memory 103, a communication interface (IF) 104, and a plurality of DACs (digital to analog converters) 105_1, 105_2,..., 105_n. The processor 101, the main memory 102, the auxiliary memory 103, the communication IF 104, and each DAC 105_i are connected to each other via a bus (not shown). Note that examples of the computer 10 include, but are not limited to, mainframe computers, personal computers, tablets, smartphones, and the like.

As the processor 101, for example, a microprocessor, a digital signal processor, a microcontroller, or a combination thereof is used. As the main memory 102, for example, a semiconductor RAM (random access memory) or the like is used. As the auxiliary memory 103, for example, a flash memory, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or a combination thereof is used. The auxiliary memory 103 stores a program for causing the computer 10 to execute a later-described audio reproduction method S1. The processor 101 expands this program on the main memory 102, and executes each instruction included in the expanded program to cause the computer 10 to execute the audio reproduction method S1 described later.

The communication IF 104 is hardware for acquiring (downloading) data from a device connected to the network N1 and providing (uploading) data to a device connected to the network N1. In the present embodiment, the communication IF 104 is used to acquire audio data from the storage 20.

The DAC 105_i is hardware for converting a digital audio signal into an analog audio signal. In the present embodiment, the DAC 105_i is used to convert the audio data acquired from the storage 20 into an analog audio signal. The analog signal obtained by the DAC 105_i is supplied to the corresponding speaker 30_i.

It should be noted that the processor 101 may be configured to be connected to an input device (not shown) and to acquire input information input by a user operating the input device, from the input device. In this case, the input information is referred to by the processor 101 in the audio reproduction method S1 described later. In addition, the processor 101 may be configured to be connected to a display device (not shown) and provide the display device with a display screen presented to the user by the display device. In this case, the display screen is generated by the processor 101 in the audio reproduction method S1 described later.

(Structure of storage 20)
The storage 20 is a device that stores a voice data group. The storage 20 has a function of providing the computer 10 with audio data included in the audio data group in response to a request from the computer 10. The storage 20 may be, for example, a network storage or a server computer.

In the present embodiment, the storage 20 stores a plurality of audio data representing non-tempo audio belonging to a specific key and a plurality of audio data representing tempo audio not belonging to a specific key. In FIG. 1, as the voice data representing the non-tempo voice belonging to a specific key, voice data C representing the non-tempo voice belonging to the C (sea) key, and a plurality of voice data representing the non-tempo voice belonging to the Am (A minor) key. 7 illustrates a plurality of voice data Dm representing non-tempo voices belonging to the voice data Am and Dm (D minor) keys. Further, in FIG. 2, as the voice data representing the tempo voice that does not belong to a specific key, the voice data T representing the drum sound is illustrated.

Hereinafter, when it is necessary to distinguish a plurality of audio data X (X=C, Am,..., Dm, T), they are also described as audio data X-i (i=1, 2,... ). For example, the audio data C-1 is the first audio data representing the audio belonging to the C key, and the audio data C-2 is the second audio data representing the audio belonging to the C key.

Note that FIG. 1 shows five pieces of audio data C, Am, Dm, and T, but the present invention is not limited to this. The number of voice data representing voices belonging to each key and the number of voice data representing tempo voices are arbitrary. Further, when the audio data C, Am, Dm, and T are not particularly distinguished, each is simply referred to as audio data.

(Associating voice data with keys etc.)
The storage 20 stores each audio data so that the key to which the audio represented by the audio data belongs and whether the audio represented by the audio data is tempo audio or non-tempo audio can be specified.

For example, the storage 20 may store a table in which an identifier (for example, a file name) of each voice data and an identifier of a key to which the voice represented by the voice data belongs are associated with each other. Further, the storage 20 may store a table in which an identifier of each voice data and a flag indicating whether the voice represented by the voice data is a tempo voice or a non-tempo voice are associated with each other.

Alternatively, in the storage 20, the identifier of each voice data may include the identifier of the key to which the voice represented by the voice data belongs. Further, in the storage 20, the identifier of each voice data may include a flag indicating whether the voice represented by the voice data is a tempo voice or a non-tempo voice. In this case, as an example, the identifier (file name) of the audio data C-1 is "tempo=0_key=C_id=1.mp3", and the identifier of the audio data T-2 is "tempo=1_id=2.mp3". And so on.

Alternatively, in the storage 20, each audio data may be stored in a folder (directory) corresponding to the key to which the audio represented by the audio data belongs. Further, in the storage, the voice data representing the tempo voice and the voice data representing the non-tempo voice may be stored in different folders. In this case, as an example, the audio data C-1 is stored in “/sound/tempo=0/c/” and the audio data T-2 is stored in “/sound/tempo=1/”.

(Structure of speaker 30_i)
The speaker 30_i is a device that outputs the sound output from the computer 10. The plurality of speakers 30_1 to 30_n are distributed and installed in various facilities. Assumed facilities include commercial spaces, hotels, restaurants, offices, exhibition halls, and the like. Note that the plurality of speakers 30_1 to 30_n may be dispersedly installed on different floors of a single facility, or may be dispersedly installed on a plurality of facilities.

In addition, it is desirable that the plurality of speakers 30_1 to 30_n are dispersedly installed in the facility so that an area that is not included in the service area of any of the speakers 30_i is generated as much as possible. This makes it possible to provide a more comfortable space to users anywhere in the facility.

<Flow of audio reproduction method S1>
A sound reproduction method S1 according to an embodiment of the present invention will be described with reference to FIG. FIG. 2 is a flowchart showing the flow of the audio reproduction method S1.

The voice reproduction method S1 is a method of reproducing a plurality of voices using the voice reproduction system 1 described above. As shown in FIG. 2, the audio reproducing method S1 includes a key selecting step S101, a data selecting step S102, and a reproducing step S103.

(Key selection step S101)
The key selection step S101 is a step in which the processor 101 selects a specific key. In the key selection step S101, the processor 101 selects a specific key from a plurality of predetermined keys, for example. In FIG. 2, the processor 101 exemplifies how the G key is selected from the C key, the Am key,..., And the Dm key.

The key selected in the key selection step S101 may be (1) a key designated by the user, (2) a randomly selected key, or (3). The key may be selected according to the reproduction date and time, the reproduction environment, or user vitals, or (4) the key may be selected by any other method.

(Data selection step S102)
The data selection step S102 is a step in which the processor 101 selects, from the sound data group stored in the storage 20, sound data representing a sound belonging to the specific key selected in the key selection step S101. In FIG. 2, an example is shown in which the processor 101 selects the voice data G-1, G-3, G5 from the voice data G-1, G-2,... Representing the voice belonging to the G key. There is.

Note that in the data selection step S102, in addition to the processing in which the processor 101 selects the voice data representing the voice belonging to the specific key selected in the key selection step S101, the processor 101 outputs the voice representing the tempo sound. You may perform the process which selects data. FIG. 2 illustrates an example in which the processor 101 selects the audio data T-4 from the audio data T-1, T-2,... Representing the tempo sound. Here, the process of selecting the audio data representing the tempo sound is only an option, and only the audio data representing the non-tempo sound may be selected in the data selection step S102.

The audio data selected in the data selection step S102 may be (1) randomly determined audio data, or (2) audio selected according to the reproduction date/time, reproduction environment, or user vitals. It may be data or (3) audio data selected by any other method.

(Playback step S103)
The reproduction step S103 is a step in which the processor 101 asynchronously reproduces the voice represented by each voice data selected in the data selection step S102 by using different speakers 30_1 to 30_n. In FIG. 2, the processor 101 (1) reproduces the sound represented by the sound data G-1 by using the speaker 30_1, (2) reproduces the sound represented by the sound data G-3 by using the speaker 30_3, and 3) An example is shown in which the voice represented by the voice data G-5 is reproduced using the speaker 30-3, and (4) the voice represented by the voice data T-4 is reproduced using the speaker 30-4.

<Effects of audio reproduction system 1>
According to the audio reproduction system 1 according to the present embodiment, a plurality of audios are reproduced using different speakers 30_1, 30_2,..., 30_n. For this reason, the user moving in the facility where the audio reproduction system 1 is installed can feel the sound flowing from the loudspeakers 30_1, 30_2,..., 30_n arranged at each place as if he/she were watching the changing scenery.

Moreover, according to the audio reproduction system 1 according to the present embodiment, a plurality of sounds belonging to a specific key are reproduced using different speakers 30_1, 30_2,..., 30_n. For this reason, the users in the overlapping areas of the service areas of the two or more speakers (for example, the speakers 30_1 and 30_2) are allowed to simultaneously listen to the two or more sounds whose pitches do not match, and as a result, the users It is possible to avoid a situation in which the user feels uncomfortable.

Furthermore, according to the audio reproduction system 1 according to the present embodiment, at most one tempo audio is included in a plurality of audios reproduced using different speakers 30_1, 30_2,..., 30_n. Therefore, users in the overlapping areas of the service areas of two or more speakers (for example, the speakers 30_1 and 30_2) are allowed to simultaneously listen to two or more voices whose rhythms are not in harmony, and as a result, the users It is possible to avoid a situation in which the user feels uncomfortable.

Further, according to the audio reproduction system 1, there are an infinite number of combinations of sounds reproduced using different speakers 30_1, 30_2,..., 30_n. Therefore, the sound image created by the audio reproduction system 1 is constantly changing and does not make the user tired. This point can be said to be an advantage of the audio reproduction system 1 that cannot be obtained by shuffle reproduction of music.

[Modification]
The audio reproduction system 1 according to the above-described embodiment can be modified so as to reproduce the audio according to the reproduction date/time, the reproduction environment, or the user vital. Hereinafter, such a modified example will be described.

<Structure of audio reproduction system 1A>
The configuration of the audio reproduction system 1A according to this modification will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the audio reproduction system 1A according to this modification.

The audio reproduction system 1A has a sensor 40_i (i=1, 2,...) In addition to the configuration of the audio reproduction system 1 shown in FIG. Note that the audio reproduction system 1A only needs to include one or a plurality of sensors 40_i, and the number thereof is not limited. The computer 10 is communicatively connected to each sensor 40_i. The computer 10 and each sensor 40_i are connected by, for example, a wireless LAN, a wired LAN, a USB (Universal Serial Bus) interface, a short-range communication interface such as infrared rays or Bluetooth (registered trademark), or a combination thereof.

(Configuration of sensor 40_i)
The sensor 40_i is a device that detects a reproduction environment or user vitals.

Examples of the sensor 40_i for detecting the reproduction environment include an illuminance sensor, a temperature sensor, a humidity sensor, a human sensor, a volume sensor, a camera, and a GPS. The respective sensors 40_i that detect the reproduction environment are, for example, dispersedly arranged in the facility where the audio reproduction system 1A is installed. The volume sensor can be used, for example, to detect a noise level. Further, the camera can be used, for example, to detect the density of people existing in the surroundings. GPS can also be used to detect the weather at that location (obtain from web services).

Examples of the sensor 40_i for detecting user vitals include a body temperature sensor, a blood pressure sensor, a pulse sensor, an acceleration sensor, and an electroencephalogram sensor. Each sensor 40_i that detects user vitals is attached to, for example, a user of a facility where the audio reproduction system 1A is installed. Note that a sensor built in a device such as a smart watch worn by a user of the facility or a smartphone carried by the user of the facility may be used to detect user vitals.

(Configuration of computer 10)
In the present modification, the processor 101 included in the computer 10 executes an audio reproduction method S2 instead of the audio reproduction method S1. The audio reproduction method S2 will be described later.

(Table stored in auxiliary memory 103)
The auxiliary memory 103 stores a reproduction date/time range (for example, morning, afternoon, night, etc.), a numerical value range indicating a reproduction environment (for example, illuminance range), and a numerical value range indicating user vitality (for example, blood pressure A table that associates the range) with the key to be selected and the attribute of the audio data to be selected is stored.

(Structure of storage 20)
Each of the audio data stored in the storage 20 is associated with the attribute of the audio data. Here, examples of the attribute of the voice data include the genre of the voice represented by the voice data, mood, creator, and the like.

<Flow of audio reproduction method S2>
The flow of the audio reproduction method S2 according to this modification will be described with reference to FIG. FIG. 4 is a flowchart showing the flow of the audio reproducing method S2 according to this modification.

The voice reproduction method S2 is a method of reproducing a plurality of voices by using the voice reproduction system 1A according to this modification. As shown in FIG. 4, the audio reproducing method S2 includes a specifying step S201, a key selecting step S202, a data selecting step S203, and a reproducing step S204.

(Specific step S201)
The identifying step S201 is a step in which the processor 101 identifies at least one of a reproduction date and time, a reproduction environment, and a user vital.

Specifically, the processor 101 identifies the date and time when the step is executed as the reproduction date and time. Further, the processor 101 specifies the numerical value acquired via the sensor 40_i for detecting the reproduction environment as the numerical value indicating the reproduction environment. Further, the processor 101 specifies the numerical value acquired via the sensor 40_i for detecting the user vital as the numerical value indicating the user vital.

(Key selection step S202)
The key selecting step S202 is a step in which the processor 101 selects a specific key according to the result of the specifying step S201.

Select the key according to the playback date and time:
Specifically, the processor 101 selects a key according to the reproduction date and time. For example, the processor 101 selects the key associated with the range including the reproduction date and time in the above-mentioned table.

Key selection according to the playback environment:
Further, the processor 101 selects a key according to the numerical value indicating the reproduction environment. For example, the processor 101 selects a key associated with a range including a numerical value indicating the reproduction environment in the above table.

Key selection according to user vitals:
Further, the processor 101 selects a key according to a numerical value indicating user vitals. For example, the processor 101 selects the key associated with the range including the numerical value indicating the user vital in the above table.

(Data selection step S203)
The data selection step S203 is a step in which the processor 101 selects voice data representing a voice that belongs to a specific key according to the result of the identification step S201.

Select data according to playback date and time:
Specifically, the processor 101 selects audio data representing an audio that belongs to a specific key according to the reproduction date and time. For example, the processor 101 selects the audio data having the attribute associated with the reproduction date and time in the above-mentioned table from the audio data representing the audio belonging to the specific key.

Key selection according to the playback environment:
Further, the processor 101 selects audio data representing audio belonging to a specific key according to a numerical value indicating a reproduction environment. For example, the processor 101 selects, from the audio data representing the audio belonging to a specific key, the audio data associated with the range of numerical values indicating the reproduction environment in the above-mentioned table.

Key selection according to user vitals:
Further, the processor 101 selects voice data representing a voice belonging to a specific key according to the numerical value indicating the user vital. For example, the processor 101 selects the audio data having the attribute associated with the numerical value indicating the user vital in the above-mentioned table.

(Playback step S204)
The details of the reproduction step S204 are the same as those of the reproduction step S103 in the audio reproduction method S1, and therefore detailed description will not be repeated.

<Effects of audio reproduction system 1A>
In this modification, the key and audio data selected in the audio reproduction system 1A can be changed according to at least one of reproduction date and time, reproduction environment, and user vital. As a result, in this modified example, a plurality of audio data suitable for the situation at the time of reproduction are reproduced. This makes it possible to provide the user with a more comfortable environment.

[Other modifications]
In the present embodiment, an example in which (1) non-tempo voice that belongs to a specific key and (2) tempo voice that does not belong to a specific key are used as audio data have been described. However, the present invention is not limited to this. For example, instead of using the tempo voice that does not belong to a specific key, the tempo voice that belongs to a specific key may be used. In this case, the storage 20 stores voice data representing tempo voice belonging to a specific key, instead of voice data T representing tempo voice. In this case, the processor 101 determines, in step S102 of FIG. 2 or step S203 of FIG. 4, voice data representing one or more non-tempo voices belonging to a specific key and the only tempo voice belonging to the specific key. And voice data representing.

Further, in the present embodiment, an example in which a plurality of voices are reproduced using a single computer has been described. However, the present invention is not limited to this. For example, instead of adopting the configuration of reproducing a plurality of voices using a single computer, a configuration of reproducing a plurality of voices using the same number of computers may be employed. In this case, each computer reproduces the sound output from the speaker corresponding to the computer. In this case, key selection and audio data selection are performed using any one of these computers or another computer that supervises these computers, and only audio reproduction is supported for each speaker. It may be performed by a computer. Alternatively, only key selection is performed using any one of these computers or another computer that controls these computers, and audio data selection and audio reproduction are performed by the computer corresponding to each speaker. It may be performed as follows.

[Example of implementation by software or hardware]
In the above-described embodiment and each modified example, the processor 101 reads and executes the program stored in the auxiliary memory 103 to execute the audio reproduction methods S1 and S2, that is, the audio reproduction methods S1 and S2. The example in which the computer 10 to be executed is realized by software has been described. However, the computer 10 that executes the sound reproduction methods S1 and S2 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like.

When the computer 10 is implemented by software, the recording medium that stores the program read by the processor 101 is not limited to the auxiliary memory 103. As the recording medium, a “non-transitory tangible medium”, for example, a ROM (Read Only Memory), a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. Further, the program may be supplied to the computer 10 via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. Note that one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the program is embodied by electronic transmission.

[Summary]
In order to solve the above problems, in a sound reproduction method according to an aspect of the present invention, one or a plurality of processors represents a sound belonging to a specific key from a sound data group stored in one or a plurality of storages. A data selection step of selecting a plurality of audio data and a reproduction step of reproducing the audio represented by each audio data selected in the data selection step by using different speakers are executed.

According to the above configuration, a plurality of voices belonging to a specific key are reproduced using different speakers. For this reason, the user in the overlapping area of the service areas of the two or more speakers is made to hear two or more voices whose pitches are not in harmony at the same time, and as a result, the user is uncomfortable. The situation can be avoided. This makes it possible to provide the user with a more comfortable space.

In the audio reproduction method according to the aspect of the present invention, it is preferable that the processor further execute a key selection step of selecting the specific key, prior to the data selection step.

According to the above configuration, it is possible to select a key to which a plurality of sounds to be reproduced belong.

In the audio reproducing method according to one aspect of the present invention, it is preferable that the processor asynchronously reproduces the audio represented by each audio data selected in the data selecting step by using different speakers in the reproducing step. ..

According to the above configuration, it is possible to avoid difficulties associated with synchronous reproduction of a plurality of sounds, such as making reproduction times of a plurality of sounds to be reproduced uniform.

In the audio reproducing method according to an aspect of the present invention, the processor does not include, in the data selecting step, only audio data representing tempo audio including a progression of a sound controlling tempo and a progression of a sound controlling tempo. It is preferable to select one or more voice data representing non-tempo voice as the plurality of voice data.

According to the above configuration, at most one tempo voice is included in a plurality of voices reproduced using different speakers. For this reason, the user in the overlapping area of the service areas of the two or more speakers is made to hear two or more voices whose rhythms are not in harmony at the same time, and as a result, the user is annoyed. The situation can be avoided. This makes it possible to provide the user with a more comfortable space.

In the audio reproducing method according to one aspect of the present invention, the processor selects, in the selecting step, a plurality of audio data representing non-tempo audio that does not include a progression of sounds that control tempo as the plurality of audio data. It is preferable to select, in addition to the plurality of audio data, only one audio data representing the tempo audio including the progress of the sound that controls the tempo.

According to the above configuration, at most one tempo voice is included in a plurality of voices reproduced using different speakers. For this reason, the user in the overlapping area of the service areas of the two or more speakers is made to hear two or more voices whose rhythms are not in harmony at the same time, and as a result, the user is annoyed. The situation can be avoided. This makes it possible to provide the user with a more comfortable space.

In the audio reproduction method according to an aspect of the present invention, the processor further executes a specific step of specifying a reproduction date/time, a reproduction environment, or user vitals, and the processor determines the data according to a result of the specific step. It is preferable to determine the audio data to be selected in the selection step.

According to the above configuration, a plurality of voices according to the reproduction date and time, the reproduction environment, or the user vitals are reproduced using different speakers. This makes it possible to provide the user with a more comfortable space according to the situation at the time of reproduction.

In the audio reproducing method according to an aspect of the present invention, the processor further executes a specifying step of specifying a reproduction date/time, a reproduction environment, or user vitals, and the processor determines the key according to a result of the specifying step. It is preferable to determine the key to be selected in the selection step.

According to the above configuration, a plurality of voices belonging to a key according to a reproduction date/time, a reproduction environment, or user vitals are reproduced using different speakers. This makes it possible to provide the user with a more comfortable space according to the situation at the time of reproduction.

In order to solve the above problems, a sound reproduction system according to an aspect of the present invention includes one or a plurality of storages and one or a plurality of processors, and the processor is sound data stored in the storages. From the group, a data selecting step of selecting a plurality of audio data representing audio belonging to a specific key, and a reproducing step of reproducing audio represented by each audio data selected in the data selecting step using different speakers, To execute.

According to the above configuration, the same effect as that of the above-described audio reproducing method can be obtained.

In order to solve the above problems, a program according to an aspect of the present invention causes a computer to execute the above-described audio reproduction method.

According to the above configuration, the same effect as that of the above-described audio reproducing method can be obtained.

[Appendix]
The present invention is not limited to the above-described embodiments, but various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments Is also included in the technical scope of the present invention.

1, 1A, 1B Audio reproduction system 10, 50_i Computer 20 Storage 30_i Speaker 40_i Sensor 101 Processor 102 Main memory 103 Auxiliary memory 104 Communication interface

Claims (9)

A data selection step in which one or more processors select a plurality of audio data representing audio belonging to a specific key from the audio data group stored in one or more storages;
A reproduction step of reproducing the voice represented by each voice data selected in the data selection step using different speakers,
A voice reproduction method characterized by the above. The processor further performs a key selection step of selecting the particular key prior to the data selection step,
The audio reproducing method according to claim 1, wherein In the reproducing step, the processor asynchronously reproduces the sound represented by each audio data selected in the data selecting step using different speakers,
The audio reproducing method according to claim 1 or 2, characterized in that. The processor, in the data selection step, a single voice data representing a tempo voice including the progression of the sound that controls the tempo, and one or more voice data representing a non-tempo voice that does not include the progression of the sound that controls the tempo. Is selected as the plurality of audio data,
The audio reproducing method according to any one of claims 1 to 3, wherein: In the data selection step, the processor selects, as the plurality of audio data, a plurality of audio data representing a non-tempo voice that does not include a progression of a sound that controls a tempo, and has a tempo that includes a progression of a sound that controls a tempo. Select only one voice data representing voice in addition to the plurality of voice data,
The audio reproducing method according to any one of claims 1 to 3, wherein: The processor further executes a specific step of specifying a reproduction date/time, a reproduction environment, or a user vital,
The processor determines audio data to be selected in the data selecting step according to the result of the specific step,
The audio reproducing method according to any one of claims 1 to 5, wherein: The processor further executes a specific step of specifying a reproduction date/time, a reproduction environment, or a user vital,
The processor determines a key to be selected in the key selecting step according to the result of the specific step,
The audio reproducing method according to claim 2, wherein Comprising one or more storages and one or more processors,
The processor is
A data selection step of selecting a plurality of audio data representing audio belonging to a specific key from the audio data group stored in the storage;
A reproduction step of reproducing the voice represented by each voice data selected in the data selection step using different speakers,
A voice reproduction system characterized by the above. A program for causing a computer to execute the audio reproducing method according to claim 1.

Images