JPH11273318A - Audio system - Google Patents

Abstract

(57) [Problem] To provide an audio system having a soundscape function capable of recording various kinds of background sounds on one recording medium. SOLUTION: At least one background sound is repeatedly reproduced and mixed during a period in which a main music is being reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio system having a soundscape function.

[0002]

2. Description of the Related Art In an audio system, music reproduced from one recording disc is mixed with background sound such as the sound of the sea such as the sound of the sea and reproduced as a background sound to output sound. A soundscape function is known. At this time, it is necessary to increase the recording time of the background sound to some extent so that the background sound is not interrupted during the reproduction of the music. or,
In order to correspond to various kinds of music, it is preferable that the number of types of background sounds recorded on one recording disc is large.

However, since the recording capacity of one recording disk is limited, there has been a problem that the types of background sounds to be recorded cannot be increased unnecessarily.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an audio system having a soundscape function capable of recording various kinds of background sounds on one recording medium.

[0005]

An audio system according to the present invention comprises a first reproducing apparatus for reproducing a main music signal from a first recording medium on which a main music signal is recorded, and a plurality of background sound signals being recorded. A second playback device for playing back the background sound signal from the second recording medium, and means for outputting a signal obtained by mixing the main music signal and the background sound signal as sound. The apparatus repeatedly reproduces at least one of the background sound signals recorded on the second recording medium during a period when the main music signal is being reproduced from the first reproducing apparatus.

[0006]

Embodiments of the present invention will be described below. FIG. 1 is a diagram schematically showing an audio system according to the present invention. In FIG. 1, a first disk player 10 reproduces an audio signal from a loaded recording disk, and supplies the reproduced audio signal AS1 to an audio controller 40. The second disk player 20 reproduces an audio signal from the loaded recording disk, and reproduces the reproduced audio signal AS2.
To the audio controller 40. The tuner 30 supplies an audio signal obtained by receiving and demodulating a television broadcast, a satellite broadcast, or an FM and AM broadcast to the audio controller 40 as a received audio signal AS3.

A mixing circuit 41 in the audio controller 40 supplies to a selector 42 a mixed audio signal MX1 obtained by mixing the reproduced audio signals AS1 and AS2 supplied from the first disk player 10 and the second disk player 20, respectively. I do. The mixing circuit 43 supplies the selector 42 with a mixed audio signal MX2 obtained by mixing the reproduced audio signal AS2 and the received audio signal AS3 supplied from the second disc player 20 and the tuner 30, respectively.

[0008] The controller 44 supplies a select signal to the selector 42 in accordance with an audio source selection operation and a soundscape function execution operation from the user. For example, when the user performs an audio source selection operation to select the first disk player 10 as an audio source, the controller 44 determines whether the reproduction audio signals AS1 and AS2, the reception audio signal AS3, the mixing audio signals MX1 and MX2 A select signal for selecting only the reproduced audio signal AS1 from the above is supplied to the selector 42. When an audio source selection operation for selecting the second disk player 20 as an audio source is performed, the controller 44 supplies a select signal for selecting only the reproduction audio signal AS2 to the selector 42. Similarly, when the user performs an audio source selection operation to select the tuner 30, the controller 44 supplies a select signal to select only the received audio signal AS3 to the selector 42. On the other hand, when the user performs the operation of executing the soundscape function, the controller 44 transmits the mixed audio signal M
A select signal for selecting one of X1 and MX2 is supplied to the selector 42. The controller 44
Are the above-described first and second disc players 10 and 2 in addition to the audio source selection control as described above.
It also performs various operation controls on each of the 0 and the tuner 30.

The selector 42 selects an audio signal corresponding to the select signal from among the reproduced audio signals AS1 and AS2, the received audio signal AS3, and the mixed audio signals MX1 and MX2. To supply. The speaker 60 outputs the audio signal amplified by the amplifier 50 as sound.

With this configuration, in the above audio system, in addition to the function of selecting any one of the first disk player 10, the second disk player 20, and the tuner 30 and outputting the sound, the tuner 30 + second The disc player 20 or the first disc player 10 + the second disc player 20 is provided with a soundscape function for performing mixing sound output.

At this time, the recording disk mounted on the second disk player 20 may be used in various environments (for example,
A background sound recording disc is used in which a plurality of sounds recorded in the sea, forest, town, etc. are recorded in advance as background sounds. FIG. 2 to FIG. 4 are diagrams showing an example of a recording form on such a background sound recording disc.

First, in the recording mode of FIG. 2, each background sound is divided into groups for each recording theme, and recording is performed collectively for each group. For example, each of the seas 1 to 5 which are sounds recorded under the theme of “sea sounds” is group A,
The forests 1 to 5 with the theme of "forest sounds" are group B, and the towns 1 to 5 with the theme of "sounds of the city" are group C. These are grouped together and the background sound recording disc On tracks 1 to 15. Further, the group names A to C and the names of the background sounds, that is,
The correspondence between the sea 5, the forest 1 to the forest 5, and the town 1 to the town 5 are recorded as track names in the TOC area of the background sound recording disc.

At this time, the memories in the controller 44 include: tracks 1 to 5: seas 1 to 5 of group A, trucks 6 to 10: forests of group B 1 to forests 5 and trucks 11 to 15: towns 1 of group C. Recording format information indicating that each of .about.5 is recorded is stored.

On the other hand, in the recording mode of FIG. 3, each background sound is repeatedly recorded in the order of the background sound belonging to the group A, the background sound belonging to the group B, and the background sound belonging to the group C. The information is sequentially recorded on tracks 1 to 15 of the disk. At this time, the memory in the controller 44 includes: Group A: tracks 1, 4, 7, 10, 13 Group B: tracks 2, 5, 8, 11, 14 Group C: tracks 3, 6, 9, 12, 15 Are stored in advance, which indicates that each is recorded.

Next, in the recording form of FIG. 4, when the group names A to C and the background sound names are associated with each other and described in the TOC area of the background sound recording disc, these group names, background sound names, In between, a separator "_" as shown in FIG. 4 is described. At this time, FIGS.
The recording time of each background sound recorded on each track is as short as 10 seconds, for example, and the first and last parts of each background sound are almost identical in terms of auditory sense as follows. Thus, the approximation of the sound image is performed.

Basic sound (noise) Frequency distribution Texture (tone) Sound pressure Tempo In this way, the background sound is reproduced continuously by approximating the sound image at the head and tail of each background sound. This reduces the number of seams in the sound and reduces the unnaturalness in the sense of hearing.

Next, an operation when the soundscape function is performed will be described. When the user performs the operation of executing the soundscape function, the controller 44
The control operation according to the soundscape execution routine shown in FIG. In FIG. 5, first, the controller 44 fetches the disc identification information S _disc of the recording disc mounted on the second disc player 20 from the second disc player 20 (Step S).
1) It is determined whether or not the disc identification information S _disc is a logical level “0” indicating a normal music recording disc (step S2). In step S2,
If it is determined that the disc identification information S _disc is at the logical level “0”, the controller 44 exits this soundscape execution routine and returns to the execution of the main flow (not described). On the other hand, in step S2, the disc identification information S _disc is not at the logical level “0”, that is, the recording disc mounted on the second disc player 20 records the background sound as shown in FIGS. If it is determined that the disc is a background sound recording disc, the controller 44 sends a background sound repeat reproduction start command to the second disc player 20 (step S3). In response to the background sound repeat reproduction start command, the second disk player 20 repeatedly reproduces a desired background sound selected by the user from among a plurality of background sounds recorded on the recording disk. The second disk player 2
0 indicates a background sound group (A to A) as shown in FIGS. 2 to 4 according to the background sound repeat reproduction start command.
A plurality of background sounds existing in one group selected by the user from among C) may be linked and reproduced repeatedly. The details of this group reproduction operation will be described later.

After the execution of step S3, the controller 44 determines whether the first disc player 10 has been selected as an audio source (step S3).
4). If it is determined in step S4 that the first disk player 10 has been selected as the audio source, the controller 44 sets the selector 4 to select only the mixing audio signal MX1.
2 (step S5). By performing the step S5, the reproduced audio signal AS1 reproduced from the first disk player 10 is added to the second disk player 2
The reproduced audio signal AS2 reproduced from 0 is mixed and output as sound.

That is, the soundscape operation of the first disc player 10 (main music reproduction) + the second disc player 20 (background sound reproduction) is performed. Next, the controller 44 determines whether or not a reproduction stop command to the second disk player 20 has been issued by the user (step S6). If it is determined in step S6 that the regeneration stop command has been issued,
After controlling the reproduction operation of the second disk player 20 to stop (step S7), the controller 44 exits the soundscape execution subroutine and returns to the execution of the main flow (not described).

On the other hand, if it is determined in step S6 that the reproduction stop command has not been issued, the controller 44 then determines whether the user has issued the reproduction stop command to the first disk player 10. A determination is made (step S8). If it is determined in step S8 that the reproduction stop command has been issued, the controller 44 controls the reproduction of the first disc player 10 to stop (step S9), and then returns to step S3. The operation as described above is repeatedly executed. On the other hand, if it is determined in step S8 that the reproduction stop command has not been issued, the controller 44 exits the soundscape execution subroutine and returns to the execution of the main flow (not described).

If it is determined in step S4 that the first disk player 10 has not been selected as an audio source, the controller 44 determines whether the tuner 30 has been selected as an audio source (step S4). S10). When it is determined in step S10 that the tuner 30 has been selected as the audio source, the controller 44 supplies a select signal for selecting the mixing audio signal MX2 to the selector 42 (step S11). By executing step S11, the reproduction audio signal AS3 reproduced from the second disc player 20 is added to the reception audio signal AS3 received and output by the tuner 30.
2 mixed as its background sound is output as sound.

That is, the tuner 30 (main music playback) + the second disc player 20
(Background sound reproduction) The following soundscape operation is performed. Next, the controller 44 determines whether or not a reproduction stop command to the second disk player 20 has been issued by the user (step S12). When it is determined in step S12 that the reproduction stop command has been issued, the controller 44 controls the reproduction of the second disk player 20 to stop (step S13), and then exits the soundscape execution subroutine to execute the main flow ( Return to execution (not explained).

On the other hand, if it is determined in step S12 that the reproduction stop command has not been issued, the controller 44 next determines whether or not the user has issued a reproduction start command to the first disk player 10. A determination is made (step S14). If it is determined in step S14 that the reproduction start command has not been issued to the first disc player 10, the controller 42 exits this soundscape execution subroutine and returns to the execution of the main flow (not described). Meanwhile, the first
If it is determined that the reproduction start command has been issued to the disc player 10, the controller 42 starts the reproduction operation for the first disc player 10 (step S15), and then proceeds to the execution of the above-described step S5.

That is, while the soundscape operation of the tuner 30 and the second disc player 20 is being performed, the first
When the reproducing operation of the disc player 10 is started, the above-described step S5 is executed, and the operation is automatically switched to the soundscape operation of the first disc player 10 + the second disc player 20.

If it is determined in step S10 that the tuner 30 has not been selected as an audio source, that is, if neither the tuner 30 nor the first disc player 10 has been selected as an audio source, The controller 44 determines the _disc identification information S _disc again (step S1).
6). If it is determined in step S16 that the disc identification information S _disc is not at the logical level “1”,
That is, if it is determined that the recording disk mounted on the second disk player 20 has been recorded with a background sound by the manufacturer in advance, the controller 4
No. 4 shifts to the execution of the step S3 and repeatedly executes the operation as described above. On the other hand, if it is determined in step S16 that the disc identification information S _disc is at the logical level “1”, the controller 44 exits this soundscape execution subroutine. In this way, if the user has started the soundscape function but neither the tuner 30 nor the first disc player 10 has been selected as the audio source, the soundscape function is automatically released.

Next, a group reproduction operation will be described as an example of the background sound repeat reproduction operation of the second disk player 20 executed in step S3. First, when a background sound recording disc having a recording form as shown in FIGS. 2 to 4 is mounted on the second disc player 20, a background sound group name and a background sound group name are displayed as shown in FIGS. A list in which the background sound names are associated with each other is displayed on a display (not shown) provided in the second disc player 20. Here, when the user selects a desired one group with an operation switch provided on the second disk player 20 and starts a reproduction operation, the group reproduction is started.

For example, when a user selects a group B when a background sound recording disc having a recording form as shown in FIG. 2 is loaded, the second disc player 20
Reproduces each background sound continuously from track 6 to track 10. Here, when the reproduction of the track 10 is completed, the process returns to the track 6, and from here, the track 1 is returned.
Each background sound is reproduced sequentially to 0. By repeating such an operation, repeat reproduction of each background sound belonging to group B is realized.

When a user selects a group B when a background sound recording disc having a recording form as shown in FIG. 3 is mounted, the second disc player 20
The reproduction is started from track 2, and thereafter, the background sounds are reproduced in the order of tracks 5, 8, 11, and 14 while alternately repeating the 2-track search and the 1-track reproduction. Here, when the reproduction of the track 14 is completed, the track 2
And the background sound is reproduced while alternately repeating the one-track reproduction and the two-track search again. By repeating such an operation, repeat reproduction of each background sound belonging to group B is realized.

When a user selects a group B when a background sound recording disk having a recording form as shown in FIG. 4 is mounted, the second disk player 20
Each background sound belonging to the group B is repeatedly played back while searching for the group name B described immediately after the special symbol "_" shown in FIG. still,
In the above group reproduction, when the reproduction operation of each background sound belonging to one group completes, repeat reproduction is realized by performing this reproduction operation again.
A predetermined number of repeat reproductions may be performed for each background sound. That is, a predetermined number of repeat reproductions are performed for one background sound, and after the predetermined number of repeat reproductions are completed, a predetermined number of repeat reproductions are performed for the next background sound.

The number of repeats for one background sound may be set for each background sound. For example, in the TOC area of the background sound recording disk, repeat number designation information for designating the number of repeats for each background sound is described, and the second disk player 20 captures the information and specifies the repeat number for each background sound Repeat playback is performed only for minutes.

[0031] Instead of the number of repeats, a time for performing the repeat reproduction may be designated. For example, in the TOC area of the background sound recording disc, a repeat reproduction time for performing the repeat reproduction for each background sound is described,
This is captured by the second disk player 20, and repeat playback is continued for each background sound until the repeat playback time elapses.

Incidentally, in the embodiment shown in FIGS. 2 to 4, one closed background sound is recorded on one track of the background sound recording disc. If the tendency of each background sound is too far apart, the listener will feel uncomfortable at the connection. For example, in the recording form shown in FIG. 2, the recorded content of the sea 1 recorded on the track 1 is “small sound of waves”, and the recorded content of the sea 2 recorded on the track 2 is “sound of a large wave”. If so, the tendency of the background sound changes significantly during reproduction from the tracks 1 to 2, so that the listener feels a sense of incongruity.

Therefore, even if there is a difference in the tendency between two background sounds recorded adjacent to each other, each background sound is recorded in a recording form as shown in FIG. Record In the embodiment shown in FIG. 6, as a background sound belonging to the group A on the theme of "sound of the sea", sea 1: the babble of the sea Sea 2: large wave Sea 3: between the waves of the coral reef, Recording is performed over three tracks.

That is, the sound of the above-mentioned “waves” is recorded on tracks 1 to 3, the sound of “big waves” is recorded on tracks 3 to 5,
The sound of "between coral reefs" is recorded on tracks 5-7, respectively. In addition, Group B with the theme of "forest sounds"
Forest 1: Akita Yamaku Forest 2: Java Island Rainforest Forest 3: Yakusugi no Shirabe Each of them is recorded over three tracks.

That is, the sounds recorded in the above “Akita no Yamaoku” are tracks 8 to 10, the sounds recorded in the “Tropical rainforest of Java Island” are tracks 10 to 12, and the sounds recorded on the theme of “Yakusugi no Shirabe”. Are recorded on the tracks 12 to 14, respectively. At this time, of the three consecutive recording tracks on which each background sound is recorded, the leading track has a fade-in state in which the recording level gradually rises from a silence level to reach a steady recording level. Recording is performed, and recording is performed on the intermediate track at this steady recording level. Further, the last track is recorded in a fade-out state until the recording level gradually decreases from a steady recording level to reach a silence level.

That is, as shown in FIG. 6, the following four types of tracks (1) to (4) exist on the tracks of the background sound recording disk. (1) Group start track GST (Track 1,
8) In the first track of each group, a background sound is recorded in a fade-in state from a silence level to a steady recording level.

(2) Seamless content track SCT
(Tracks 2, 4, 6, 9, 11, 13) The background sound is recorded at a steady recording level. (3) Crossfade track CFT (Tracks 3, 5, 1
0,12) Between two adjacent background sounds, the front background sound is recorded in a fade-out state, and the rear background sound is recorded in a fade-in state.

(4) Group end track GET (tracks 7 and 14) In the last track in each group, background sound is recorded in a fade-out state from a steady recording level to a silence level. Here, using a background sound recording disc having a recording form as shown in FIG.
For example, to perform group reproduction with group A selected, tracks 1 → 2 → 2 → 2 → 3 → 4 → 4 → 4 → 5 → 6
The reproduction operation of → 6 → 6 → 7 → is repeatedly executed.

At this time, 2
The two background sounds, for example, the sound of “wave babbling” recorded on track 2 and the sound of “loud wave” recorded on track 4 have different tendencies from each other. With the track CFT, the sound can be smoothly connected and heard. In the case where reproduction is performed from all areas of the background sound recording disc in the recording mode as shown in FIG. 6, tracks 1 → 2 → 2 → 2 → 3 →
4 → 4 → 4 → 5 → 6 → 6 → 6 → 7 → 8 → 9 → 9 → 9 → 10
→ 11 → 11 → 11 → 12 → 13 → 13 → 13 → 14 → 15...

Further, in order to repeatedly reproduce only a specific background sound, for example, a “wave babble” sound recorded on the track 2, it is necessary to select a track 2 → 2 → 2 → 2 → 2 → 2. Thus, the same seamless content track SCT is repeatedly reproduced. As described above, in the soundscape operation of the audio system according to the present invention, one background sound is repeatedly reproduced and mixed during the period in which the main music is reproduced.

Therefore, it is possible to shorten the recording time of each background sound, so that it is possible to increase the types of background sounds to be recorded on one recording disk, which is preferable. In the above embodiment, the operation in the case where the user operates the controller 44 to manually start the soundscape operation has been described. However, the present invention is not limited to this configuration.

For example, the soundscape operation may be automatically started when a specific background sound recording disk manufactured by the manufacturer is mounted. At this time, the CPU (central processing unit) in the second disk player 20 responds to the loading of the recording disk by
A soundscape function automatic start routine as shown in FIG.

In FIG. 7, first, the CPU (central processing unit) in the second disk player 20 determines whether or not the mounted recording disk is a pre-mastered disk, that is, a non-writable disk (step). S
21). If it is determined in step S21 that the recording disk is a pre-mastered disk, the CPU then determines whether the recording disk is a background sound recording disk manufactured by the manufacturer. Is performed based on the information described in the TOC area (step S22). For example, the T of the loaded recording disc
It is determined whether or not the disc name described in the OC area is a disc name indicating a background sound recording disc created by the manufacturer.

If it is determined in step S22 that the recording disk mounted on the second disk player 20 is not a background sound recording disk produced by the manufacturer, the CPU records the recording sound on the recording disk. It is determined whether or not the number of pieces of information, that is, the number of tracks is 50 or more based on the contents described in the TOC area (step S23). Step S23
If it is determined in step S22 that the number of tracks is equal to or more than 50, or if it is determined in step S22 that the recording disk mounted on the second disk player 20 is a background sound recording disk, the CPU may have a built-in CPU. "2" is stored in the register as the disc identification information S _disc (step S24). This indicates that the mounted recording disk is a background sound recording disk manufactured by the manufacturer.

After the execution of step S24, the CP
U shifts to the execution of step S3 in the soundscape execution routine shown in FIG. 5, and entrusts the subsequent operations to the controller 44. According to the above control, when the recording disk which is the premastered disk and the background sound is recorded is mounted on the second disk player 20, the soundscape operation is automatically started without waiting for the operation of the user. It is.

On the other hand, in step S21, the second
If it is determined that the recording disc mounted on the disc player 20 is not a pre-mastered disc, the CPU
Determines whether the recording disk is a background sound recording disk in the same manner as in step S22 (step S25). In step S25, when it is determined that the recording disk mounted on the second disk player 20 is a background sound recording disk, or the number of information recorded on this recording disk, that is, the number of tracks is less than 50. If it is determined, the CPU stores "1" in the internal register as the disc identification information S _disc (step S26). This indicates that the mounted recording disk is a background sound recording disk created by the user.

Next, the CPU starts the built-in timer (step S27), and further causes the display of the second disc player 20 to blink the "Soundscape" logo (step S28). Next, the CP
U determines whether or not a command to start a soundscape operation has been issued by a user's operation (step S2).
9). If it is determined in step S29 that the soundscape operation start command has not been issued, the CPU determines whether the count value of the built-in timer has passed a predetermined timeout time (step S30). ). If it is determined in step S30 that the count value of the built-in timer has not passed the predetermined timeout time, the CPU proceeds to step S30.
Returning to the operation of 28, the operation as described above is repeatedly executed. Here, when it is determined in step S29 that a soundscape operation start command has been issued,
The CPU shifts to the execution of step S3 in the soundscape execution routine shown in FIG. 5, and entrusts the subsequent operations to the controller 44.

That is, if the recording disk mounted on the second disk player 20 is not a pre-mastered disk, but the content recorded on the recording disk is a background sound, a soundscape operation is possible. This is indicated to the user by flashing the message. At this time, if the user performs an operation for starting the soundscape function within a predetermined time, the soundscape operation is started.

On the other hand, in step S25, the second
If it is determined that the recording disk mounted on the disk player 20 is not a background sound recording disk, the CPU
_Stores "0" in the built-in register as disc identification information S _disc (step S31), and thereafter, stops the second player (step S32). After the end of step S32, or when it is determined in step S30 that the count value of the built-in timer has exceeded a predetermined time-out period, the CPU exits this soundscape automatic start routine and proceeds to the main flow (see FIG. Return to the operation of (z).

As described above, by executing the soundscape function automatic start routine as shown in FIG. 7, automatically (without requiring user operation) according to the mounting of the background sound recording disc. The soundscape operation can be started.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an audio system according to the present invention.

FIG. 2 is a diagram showing an example of a recording form on a background sound recording disc.

FIG. 3 is a diagram showing an example of a recording form on a background sound recording disc.

FIG. 4 is a diagram showing an example of a recording form on a background sound recording disc.

FIG. 5 is a diagram showing a soundscape execution routine according to the present invention.

FIG. 6 is a diagram showing an example of a recording mode of a background sound on a background sound recording disc.

FIG. 7 is a diagram showing a soundscape automatic start routine.

[Description of Signs of Main Parts]

 Reference Signs List 10 first disc player 20 second disc player 30 tuner 40 audio controller 41, 43 mixing circuit 42 selector 44 controller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chiharu Akaishi 1-7-1, Shimomeguro, Meguro-ku, Tokyo PA X Building Pioneer Co., Ltd. (72) Inventor Haruo Okada 1-7-1 Shimomeguro, Meguro-ku, Tokyo No. 1 PA X Building Pioneer Corporation (72) Inventor Hidekazu Yoshida 1-7-1 Shimomeguro, Meguro-ku, Tokyo PA X Building Pioneer Corporation

Claims (7)

[Claims] A first playback device for playing back the main music signal from a first recording medium on which a main music signal is recorded; and a background sound from a second recording medium on which a plurality of background sound signals are recorded. A second reproduction device for reproducing a signal; and means for outputting a signal obtained by mixing the main music signal and the background sound signal as sound. The second reproduction device transmits the main music signal from the first reproduction device to the main reproduction device. An audio system, wherein the at least one background sound signal recorded on the second recording medium is repeatedly reproduced during a period in which a music signal is being reproduced. 2. The second playback device links a plurality of the background sound signals recorded on the second recording medium during a period in which the main music signal is played from the first playback device. 2. The audio system according to claim 1, wherein the audio system sequentially reproduces and repeats the reproduction. 3. The apparatus according to claim 2, wherein the second playback device performs one predetermined number of the background sound signals recorded on the second recording medium during a period in which the main music signal is played back from the first playback device. 2. The audio system according to claim 1, wherein the reproduction of the background sound signal is repeated for the predetermined number of times after the reproduction is repeated only for the predetermined number of times. 4. The second recording medium records repetition number information for specifying the number of times the background sound signal is to be repeatedly reproduced, and the number of times of the background sound signal is specified by the repetition number information. The audio system according to claim 3, wherein the signal is repeatedly reproduced. 5. The apparatus according to claim 1, wherein the second reproducing apparatus is configured to transmit the one background sound signal recorded on the second recording medium for a predetermined period during a period in which the main music signal is reproduced from the first reproducing apparatus. 2. The audio system according to claim 1, wherein the other background sound signal is repeatedly reproduced only during the predetermined time after the reproduction is repeated only during the predetermined period. 6. The audio system according to claim 1, wherein each of the background sound signals has a sound image of a head portion and a sound image of a tail portion thereof approximate to each other. 7. A receiver for receiving and demodulating a broadcast signal to obtain a received audio signal, a reproducing device for reproducing the background sound signal from a recording medium on which a plurality of background sound signals are recorded, Means for acoustically outputting a signal obtained by mixing a signal and the background sound signal, wherein the reproduction device is recorded on the recording medium during a period in which the reception audio signal is being output from the receiver. Wherein the at least one background sound signal is repeatedly reproduced.