close

Вход

Забыли?

вход по аккаунту

?

JP2009143498

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2009143498
The present invention provides an interface capable of visually recognizing the state of an
acoustic environment provided in a moving body. An audio control means for controlling an
audio output means for outputting an audio to an individual space or an entire space constituted
by a plurality of the individual spaces, and audio information on an audio output to the individual
space or the entire space And the sound control means display voice information indicating that
different voices are output in the individual spaces or voice information indicating that the same
voice is output in the entire space Display on the means. [Selected figure] Figure 3
Sound system
[0001]
The present invention relates to an acoustic system provided in a mobile body such as an
airplane, a train, and a car.
[0002]
BACKGROUND There is an acoustic system that provides voice in a predetermined space in a
mobile object such as an airplane, a train, or a car.
This acoustic system is provided to the user as one of the AV (Audio Visual) functions of
navigation. For example, Patent Document 1 discloses a technique of forming an acoustic space
by controlling sounds output from a plurality of speakers arranged in space. Further, Patent
09-05-2019
1
Document 2 discloses a technique for inputting various navigation functions by selecting a mark
displayed on a screen during a navigation operation as an icon. JP 2007-116363 JP JP 10122876 JP
[0003]
An acoustic system that provides voice in a moving body such as an airplane, train, car, etc.
When providing the same voice to all the seats in the moving body or providing different voices
to each seat in the moving body, the following problems There is. For example, in the situation
where the voice a is output to all the seats in the moving body, if the listener a desires to listen to
the voice b, the listener a outputs the sound b to the seat of the moving body. Change the setting
of the sound environment. By changing the setting of the acoustic environment in the moving
body, the listener a can listen to the voice b at his own seat. In this case, the listener b on the
other seat does not recognize that the sound b is output to the seat of the listener a, since the
sound output to the seat of the listener b is not changed. In order for the listener b to recognize
that the sound b is output to the seat of the listener a, it is necessary to confirm the sound output
to the seat of the listener a by ear.
[0004]
Also, for example, in a situation where different voices are output for each seat in the moving
body, in order for the listener a to recognize the voice that the listener b in the other seats is
listening to, the seat of the listener b is It is necessary to confirm the sound being output by ear.
Then, when the listener a desires to listen to the sound outputted to the seat of the listener b, the
listener a moves so as to output the sound outputted to the seat of the listener b to all the seats
Change the sound environment settings in the body. The listener a recognizes that the same
voice is output to all the seats. However, the listener b does not recognize that the same sound is
output to all the seats because there is no change in the sound output to the seat of the listener b.
In order for the listener b to recognize that the same sound is output to all the seats, it is
necessary to confirm the sounds output to all the seats by ear.
[0005]
In the present invention, in view of the above-mentioned problems, it is an object of the present
invention to provide an acoustic system provided with an interface capable of visually
recognizing the state of the acoustic environment provided in a moving body such as an airplane,
a train or an automobile. .
09-05-2019
2
[0006]
In the present invention, the following means are adopted in order to solve the above problems.
That is, the present invention relates to an acoustic control means for controlling an audio output
means for outputting an audio to an individual space or an entire space constituted by a plurality
of the individual spaces, and an audio output to the individual space or the entire space. The
display means for displaying voice information and the sound control means are voice
information indicating that different voices are output for each individual space, or voice
information indicating that the same voice is output to the entire space Are displayed on the
display means.
[0007]
In the above-described audio system, when different sounds are output in the individual spaces,
the display means displays sound information indicating that different sounds are output in the
individual spaces. Further, in the above-mentioned audio system, when the same sound is output
to the entire space, the display means displays sound information indicating that the same sound
is output to the entire space. Here, the individual space is a space having a certain extent to
which the listener can listen to the sound, and the whole space is a space having a certain extent
in which a plurality of individual spaces are gathered. Therefore, the entire space includes the
individual space. In addition, since the sound source of the sound output to the individual space
is different, the sound source of the sound output to the individual space is the same as the
sound source of the sound output to the individual space but the sound generated by the sound
source is different. Therefore, different voices may be output for each individual space.
[0008]
The listener can recognize that different sounds are output for each individual space by looking
at audio information indicating that different sounds are output for each individual space
displayed on the display means. In addition, the listener can recognize that the same voice is
output in the entire space by looking at voice information indicating that the same voice is output
in the entire space displayed on the display means. For this reason, the listener does not have to
09-05-2019
3
confirm the sound output to the individual space with his ear, and can concentrate on listening to
the sound output to the individual space.
[0009]
Further, in the above acoustic system, the display means has a contact detection means capable
of detecting a touch on the surface, and the acoustic control means is configured to contact the
contact detection means when the contact is made. The setting information may be displayed on
the display means. As a result, when the touch operation on the touch detection unit is
performed, the setting information of the audio information can be displayed on the display unit.
Therefore, the listener can know the setting information of the voice information in the case
where different voices are output in the individual spaces or the setting information of the voice
information in the case where the same voice is output to the entire space. Here, the setting
information is information indicating the type of sound source of sound being output for each
individual space, information indicating the type of sound being output for each individual space,
and sound source of sound being output to the entire space Information indicating the type,
information indicating the type of sound being output to the entire space, and the like.
[0010]
In the sound system, the voice information may be at least a figure, a character, or a combination
of a figure and a character. Thus, the listener can intuitively recognize that different voices are
outputted in each individual space by looking at the voice information displayed on the display
means, and the same voice can be received in the entire space. It can be intuitively recognized
that it is output. Further, the present invention may be a method in which a computer or other
device, machine or the like executes any of the above processes. Furthermore, the present
invention may be a program that causes a computer, other devices, machines, etc. to realize any
of the functions described above. In the present invention, such a program may be recorded on a
recording medium readable by a computer or the like.
[0011]
According to the present invention, it is possible to visually recognize the state of the acoustic
environment provided in a moving body such as an airplane, a train, or a car.
[0012]
09-05-2019
4
Hereinafter, embodiments of the present invention will be described based on the drawings.
The configuration of the following embodiment is an exemplification, and the present invention is
not limited to the configuration of the embodiment. Although the case where the sound system
according to the present embodiment is applied to a vehicle will be described below, the sound
system may be applied to a movie theater, a concert, an airplane, a train or the like. FIG. 1 is a
schematic view of a vehicle 1 on which an acoustic system 10 according to the present
embodiment is mounted. In FIG. 1, a vehicle space 2 which is a closed space is provided in a
vehicle 1, and a listener who is a passenger can exist in the vehicle 1. The seat 3 of the vehicle 1
is provided with a speaker 4 and an error microphone 5 in a position where a listener can be
present.
[0013]
The individual acoustic environment is provided for each individual space provided in the vehicle
1 on which the acoustic system 10 according to the present embodiment is mounted, and the
same acoustic environment is provided for the entire space provided in the vehicle 1 I will
provide a. For example, the voices of different sound sources are output from the speakers 4a
and 4b, the speakers 4c and 4d, the speakers 4e and 4f, and the speakers 4g and 4h shown in
FIG. A separate acoustic environment is provided for each of the space in the vicinity, the space
in the vicinity of the seat 3c, and the space in the vicinity of the seat 3d. Therefore, when an
individual acoustic environment is provided, different sounds will be output to each individual
space. In addition, the same sound source sound is output from the speakers 4a and 4b, the
speakers 4c and 4d, the speakers 4e and 4f, and the speakers 4g and 4h shown in FIG. 1 to
create a space near the seat 3a and a space near the seat 3b. The same acoustic environment is
provided to the entire space including the space of the seat 3, the space around the seat 3c and
the space around the seat 3d. Therefore, when the same acoustic environment is provided, the
same voice is output to the entire space.
[0014]
In the sound system 10 according to the present embodiment, a leaked sound reduction process
is performed to reduce leakage of sound output from each seat to another seat when providing
an individual sound space. Here, the leaked sound reduction processing of the sound system 10
09-05-2019
5
according to the present embodiment will be described with reference to FIG. In addition, the
leak sound reduction process demonstrated here is an example, and another leak sound
reduction process can also be applied in the sound system 10 which concerns on this
embodiment.
[0015]
FIG. 2 is an explanatory view of the leakage sound reduction processing of the sound system 10
according to the present embodiment. As shown in FIG. 2, the sound system 10 according to the
present embodiment includes the other seat speaker 12, the own seat speaker 13, the own seat
error microphone 14, the other seat sound source 21, the leaked sound reduction filter 22, and
the own seat sound source 23. , A virtual sound source filter 24, a back sound source inverse
filter 25, and an auxiliary filter 26. The sound provided from the self-seat speaker 13 has a
virtual sound source 15 which is a virtual sound source in front of the listener of the self-seat.
Also, the leaked sound reduction filter 22 and the auxiliary filter 26 whose upper left corner is
shown in black indicate that they are ADFs (Adaptive Filters; Adaptive Digital Filters).
[0016]
The sound system 10 according to the present embodiment is a leaked sound between the otherseat speaker 12 and the own-seat error microphone 14 in order to effectively reduce the sound
leaking from the other-seat speaker 12 to the own seat where the listener 10 is sitting. The
auxiliary sound source filter 24 is used to adaptively control the transfer function P (z) and the
error path transfer function C (z) between the self-seat speaker 13 and the self-seat error
microphone 14 while using the auxiliary filter 26. The back sound source inverse filter 25 is used
to localize the sound image to the front of the listener to provide a realistic individual sound
environment.
[0017]
The passenger's seat speaker 12 is composed of a passenger's seat right speaker 12a and a
passenger's seat left speaker 12b, and is installed, for example, at a seat shoulder or a headrest
portion of a rear seat in a car.
The other seat speaker 12 is connected to the other seat sound source 21 to provide an
individual sound environment such as music and voice for the other seat.
09-05-2019
6
[0018]
The self-seat speaker 13 includes a self-seat right speaker 13a and a self-seat left speaker 13b,
and is installed, for example, on the back of the driver's seat in a car. The self-seat speaker 13 is
connected to the leaked sound reduction filter 22 and the rear sound source reverse filter 25 to
provide an individual sound environment such as music and voice for the self-seat and cancels
the leaked sound from the other-seat speaker 12 Output control sound.
[0019]
The own seat error microphone 14 includes a right error microphone 14a and a left error
microphone 14b, and is installed in front of the own seat right speaker 13a and the own seat left
speaker 13b constituting the own seat speaker 13. Note that the own seat error microphone 14
is also installed in, for example, a seat shoulder or a headrest portion of a driver's seat in an
automobile, as with the own seat speaker 13. The output of the own-seat error microphone 14 is
used to estimate the “leakage sound transfer function P (z)” and the “error path transfer
function C (z)” in the auxiliary filter 26.
[0020]
The other seat sound source 21 is a device for reproducing music or voice of a portable storage
medium such as a CD or a DVD, music or voice such as a radio, a television, or a car navigation
system. The output of the other-seat sound source 21 is input to the other-seat speaker 12 as
well as to the leaked sound reduction filter 22 and the auxiliary filter 26.
[0021]
The leaked sound reduction filter 22 uses a leaked sound transfer function P (z) and an error
path transfer function C (z) estimated based on the output of the auxiliary filter 26 to control
sound that cancels out the leaked sound from the other-seat speaker 12 Is a filter that generates
The leaked sound reduction filter 22 is configured as an ADF (Adaptive Filter; Adaptive Digital
Filter).
09-05-2019
7
[0022]
Here, the calculation procedure of the leaked sound reduction filter 22 will be briefly described.
Assuming that the leak noise reduction filter 22 is “Hl (z)”, the auxiliary filter 26 is “S (z)”,
the leak noise transfer function is “P (z)”, and the error path transfer function is “C (z)”
These relational expressions are expressed as an equation “S (z) = P (z) + Hl (z) C (z)”.
[0023]
In the formula “S (z) = P (z) + Hl (z) C (z)”, two initial values (S1 (z), Hl1 (z), S2 (S)) for S (z) and
Hl (z) Estimate the optimal P (z) and P (z) by inputting z) and Hl2 (z)) and updating S1 (z) and S2
(z) so that the cancellation error is minimized Can. The optimal Hl (z) is then expressed as the
equation "Hl (z) =-P (z) / C (z)".
[0024]
The own-seat sound source 23 is a device for reproducing music and voice of a portable storage
medium such as a CD and a DVD, music and voice such as a radio, a television, and a car
navigation system. The output of the self-seat sound source 23 is output to the self-seat speaker
13 through the virtual sound source filter 24 and the backward sound source inverse filter 25.
[0025]
The virtual sound source filter 24 is a filter (Q (z)) that receives an output from the own seat
sound source 23 and generates a virtual sound field having a virtual sound image in front of the
listener at the own seat. The virtual sound field generated by the virtual sound source filter 24 is
obtained by processing the signal of the self-seat sound source 23 as if there is a sound source in
front of the listener, like the virtual sound source 15 shown in FIG. In addition, since the virtual
sound source filter 24 is a transfer function obtained in advance based on the measurement
results and the like in advance, it is possible to obtain a realistic sound field without applying a
processing load. Here, prior measurement is performed by emitting sound from two speakers
installed in front of a dummy head simulating a listener, and measuring an impulse response at
09-05-2019
8
the ear position with a microphone installed at the ear position of the dummy head To be done.
Then, a target transfer function related to the target sound field is obtained based on the result of
the measurement, and the obtained target transfer function is set as Q (z).
[0026]
The backward sound source inverse filter 25 is a filter defined as an inverse function of the error
path transfer function C (z) between the self-seat speaker 13 and the self-seat error microphone
14, and a virtual sound field based on the position of the self-seat speaker 13 Is localized to the
position of the own seat error microphone 14. As a result, it is possible to correct the rearward
localization of the sound image caused by the self-seat speaker 13 being installed behind the
listener. Here, assuming that the rear sound source inverse filter 25 is “Hb (z)”, Hb (z) is
expressed as an expression “Hb (z) = 1 / C (z)”. As C (z) in this equation, a static error path
transfer function estimated in advance is used.
[0027]
The auxiliary filter 26 is a filter that receives the outputs of the other-seat sound source 21 and
the own-seat error microphone 14, and estimates the leaked sound transfer function P (z) and
the error path transfer function C (z). The output of the auxiliary filter 26 is used for adaptive
control of the leak noise reduction filter 22.
[0028]
As described above, it is possible to improve the operation accuracy of the leaked sound
reduction filter 22 by dynamically estimating the error path transfer function C (z) that easily
changes in accordance with the environmental change. Further, the virtual sound source filter 24
generates a sound having a sound image in front of the listener, and the back sound source
inverse filter 25 further causes the sound image based on the position of the self-seat speaker 13
to be close to the occupant's ear. Localization to a position can provide an individualized acoustic
environment with a sense of reality.
[0029]
09-05-2019
9
Next, an outline of the sound system 10 according to the present embodiment will be described.
FIG. 3 is a view showing the configuration of the sound system 10 according to the present
embodiment. As shown in FIG. 3, the sound system 10 according to the present embodiment
includes a speaker 4 including speakers 4 a to 4 h, a main amplifier 31, an audio output unit 32,
a DSP (Digital Signal Processor) 33, and a display unit 34. And an operation unit 35 and the like,
and a control unit 37.
[0030]
The sound output unit 32 includes a sound source 38 and a reproduction device 39 of the sound
source 38. The sound source 38 is, for example, a CD, a DVD, an MD, an HDD, an FM / AM tuner,
a TV tuner, a portable audio recording medium, or the like. An audio signal output from the audio
output unit 32 is converted into a digital signal by an A / D converter (not shown). The voice
signal converted into the digital signal is subjected to processing such as equalization by the DSP
33 and converted into an analog signal by a D / A converter (not shown). The audio signal
converted into the analog signal is amplified by the main amplifier 31 and output from the
speaker 4 as audio.
[0031]
The interface unit 36 includes the display unit 34, the operation unit 35, and the like. Various
information is displayed on the display unit 34. The display unit 34 is, for example, a liquid
crystal display device, a plasma display panel, a CRT (Cathode Ray Tube), an electroluminescence
panel or the like. Although not shown, the display unit 34 includes a RAM for storing image data,
and a drive circuit for driving the display unit 34 based on the data of the RAM. However, a RAM
for storing image data, a drive circuit for driving the display unit 34 and the like may be provided
independently as an image processing substrate. In that case, data constituting screen
information from the control unit 37 is input to the image processing board.
[0032]
The operation unit 35 receives an operation from a listener. For example, the operation unit 35 is
a button or a switch for selecting / changing the display content of the display unit 34.
Furthermore, the operation unit 35 may be able to receive an operation instruction such as a
09-05-2019
10
button or a switch provided on a remote controller (not shown). In addition, the operation unit
35 may be a touch panel capable of detecting a touch on the surface, and the display content of
the display unit 34 may be selected / changed by a touch operation on the touch panel. In this
case, when the touch operation on the operation unit 35 is performed, the interface unit 36
outputs a detection signal of the touch operation to the control unit 37.
[0033]
The interface unit 36 is preferably installed at a position where it can be viewed from each seat
in the vehicle 1. However, when the interface unit 36 functions as a display screen of the
navigation system, it is preferable that the interface unit 36 be installed at a position where there
is no hindrance to the operation of the vehicle 1. Further, the interface unit 36 can be installed in
each seat of the vehicle 1. For example, an interface unit 36 capable of functioning as a display
screen of a navigation system is installed in the driver's seat of the vehicle 1, and an interface
unit 36 capable of functioning as an image display is installed in other seats. You may
[0034]
The control unit 37 is configured by a CPU (Central Processing Unit) 40, a memory 41, and the
like, and executes various processing when the program stored in the memory 41 is read by the
CPU. Further, the control unit 37 controls the entire sound system 10 including control of the
sound output unit 32, the DSP 33, the interface unit 36, and the like. For example, the control
unit 37 receives a signal of selection / change of the display content of the display unit 34 via
the operation unit 35, and controls the display of the display unit 34 accordingly. The memory
41 is realized by a power-backed volatile memory controlled by a computer program executed on
the CPU, and a non-volatile memory such as a flash memory.
[0035]
When the listener desires to reproduce the sound source 38 in the individual sound environment,
selection of the sound source 38 and designation of the individual sound environment are
performed. Specifically, the control unit 37 detects an operation on the operation unit 35 by the
listener, and the display unit 34 displays the selection screen of the sound source 38 and the
setting screen of the sound environment. Selection of the sound source 38 and designation of an
individual sound environment are performed through 35. For example, designation of the
09-05-2019
11
individual acoustic environment is performed by designating a seat in the vehicle 1. In this case,
the individual acoustic environment may be specified by specifying a plurality of seats in the
vehicle 1. The reproduction process of the selected sound source 38 is performed by the audio
output unit 32 being controlled by the control unit 37, and the DSP 33 is controlled by the
control unit 37 to provide an individual acoustic environment. Specifically, an audio signal output
from the selected sound source 38 is input to the main amplifier 31 via the DSP 33, and audio is
output from the speaker 4 provided in the designated seat.
[0036]
On the other hand, when the listener desires to reproduce the sound source 38 in the same
sound environment, selection of the sound source 38 and designation of the same sound
environment are performed. Specifically, the control unit 37 detects an operation on the
operation unit 35 by the listener, and the display unit 34 displays the selection screen of the
sound source 38 and the setting screen of the sound environment. Selection of the sound source
38 and designation of the same sound environment are performed via 35. For example,
designation of the same acoustic environment is performed by designating all the seats in the
vehicle 1. The reproduction process of the selected sound source 38 is performed by the audio
output unit 32 being controlled by the control unit 37, and the DSP 33 is controlled by the
control unit 37 to provide the same acoustic environment. Specifically, an audio signal output
from the selected sound source 38 is input to the main amplifier 31 via the DSP 33, and audio is
output from the speakers 4 provided on all the seats.
[0037]
Next, the display process of the display unit 34 when the individual acoustic environment is
provided and the display process of the display unit 34 when the same acoustic environment is
provided will be described. FIG. 4 is a flowchart showing the flow of display processing in the
audio system 10 according to the present embodiment.
[0038]
The display process in the sound system 10 according to the present embodiment is performed
when the reproduction process of the sound source 38 is started. First, the control unit 37
determines whether the acoustic environment designated on the setting screen of the acoustic
09-05-2019
12
environment is an individual acoustic environment (S01). That is, it is determined whether the
individual sound environment is specified or the same sound environment is specified on the
setting screen of the sound environment.
[0039]
When the individual sound environment is designated on the setting screen of the sound
environment (YES in the process of S01), the control unit 37 controls the DSP 33 to provide the
individual sound environment and controls the interface unit 36. A sign is displayed on the
screen of the display unit 34 to indicate that the provision of the individual acoustic environment
is being performed (S02). The sign indicating that the individual acoustic environment is
provided is, for example, an icon, but may be another figure or character, a combination of an
icon and a letter, a combination of a figure or a character, or the like.
[0040]
On the other hand, when the same sound environment is designated on the setting screen of the
sound environment (NO in the process of S01), the control unit 37 controls the interface unit 36
while providing the same sound environment by controlling the DSP 33. By doing this, a sign
indicating that the same acoustic environment is being provided is displayed on the screen of the
display unit 34 (S03). The sign indicating that the same acoustic environment is provided is, for
example, an icon, but may be another figure or character, a combination of an icon and a letter, a
combination of a figure or a character, or the like.
[0041]
Referring to FIGS. 5 to 11, a sign indicating that provision of an individual acoustic environment
displayed on the screen of display unit 34 is performed and a sign indicating that provision of
the same acoustic environment is performed are performed. A specific example will be described.
[0042]
FIG. 5 is a view showing an example of the sign according to the present embodiment.
09-05-2019
13
On the right side of the thick arrow shown in FIG. 5, the sign indicating the provision of an
individual acoustic environment is made up of two diagonally hatched two substantially circular
icons and two substantially circular non-hatched icons. It is represented by the icon. On the left
side of the thick arrow shown in FIG. 5, a sign indicating that the same acoustic environment is
provided is represented by four hatched substantially circular icons. Here, the hatched
substantially circular icon and the hatched substantially circular icon mean that the colors added
to the icons are different.
[0043]
When two substantially circular icons with diagonal lines and two substantially circular icons
without diagonal lines are displayed on the screen of display unit 34, different types of icons are
displayed on the screen of display unit 34. As a result, the listener can recognize that the
provision of the individual acoustic environment is being performed. Therefore, the listener can
recognize that the provision of the individual acoustic environment is performed in the vehicle 1
simply by looking at the icons displayed on the screen of the display unit 34.
[0044]
On the other hand, when four substantially circular icons with hatched lines are displayed on the
screen of the display unit 34, the same kind of icons are displayed on the screen of the display
unit 34. It is possible to recognize that the provision of Therefore, the listener can recognize that
provision of the same acoustic environment is performed in the vehicle 1 simply by looking at
the icon displayed on the screen of the display unit 34.
[0045]
Also, the four icons on the right side of the thick arrow in FIG. 5 or the four icons on the left side
of the thick arrow correspond to the position of the seat in the vehicle 1. Therefore, when the
four icons on the right side of the thick arrow in FIG. 5 are displayed on the screen of the display
unit 34, the listener uses the same sound source in the front and rear seats 3a and 3c on the
right side in the vehicle 1 It can be recognized that the provision of In addition, the listener can
recognize that provision of an individual acoustic environment is performed by the same sound
source in the front and rear seats 3b and 3d on the left side in the vehicle 1.
09-05-2019
14
[0046]
FIG. 6 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 6, a sign indicating that provision of an individual
acoustic environment is performed is represented by two rectangular icons and two substantially
circular icons. In the present specification, a rectangle refers to a rectangular quadrilateral
including a rectangle and a square. On the left side of the thick arrow shown in FIG. 6, a sign
indicating that the same acoustic environment is provided is represented by four substantially
circular icons.
[0047]
As shown in FIG. 6, a sign indicating the provision of an individual acoustic environment is
represented by a plurality of icons of different types, and a sign indicating the provision of the
same acoustic environment is represented by a plurality of same types of icons. The listener can
recognize the type of acoustic environment provided in the vehicle 1 by displaying the icon of.
The rectangular icons shown in FIG. 6 and the substantially circular icons may have different
colors. As a result, the listener can recognize the type of acoustic environment provided in the
vehicle 1 not only by the shape of the icon displayed on the screen of the display unit 34 but also
by the color of the icon. Further, similarly to the icon shown in FIG. 5, the icon shown in FIG. 6
corresponds to the position of the seat in the vehicle 1.
[0048]
FIG. 7 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 7, a sign indicating that the provision of an individual
acoustic environment is performed is represented by four substantially circular icons. On the left
side of the thick arrow shown in FIG. 7, a sign indicating that the same acoustic environment is
being provided is represented by a single substantially circular icon. The substantially circular
icon on the left side of the thick arrow in FIG. 7 is larger in shape than the substantially circular
icon on the right side of the thick arrow.
[0049]
09-05-2019
15
As shown in FIG. 7, a sign indicating that provision of an individual acoustic environment is
performed is represented by a plurality of icons of the same type, and a sign indicating that
provision of the same acoustic environment is performed is performed by one icon. By
representing, the listener can recognize the type of acoustic environment provided in the vehicle
1. Note that different colors may be given to substantially circular icons of different sizes shown
in FIG. Thus, the listener can recognize the type of acoustic environment provided in the vehicle
1 not only by the size of the icon displayed on the screen of the display unit 34 but also by the
color of the icon.
[0050]
FIG. 8 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 8, a sign indicating that the provision of the individual
acoustic environment is performed is represented by one rectangular icon. On the left side of the
thick arrow shown in FIG. 8, a sign indicating that the same acoustic environment is being
provided is represented by a single substantially circular icon. As shown in FIG. 8, listening is
made by representing the sign indicating that the provision of the individual acoustic
environment is being performed and the sign indicating that the same acoustic environment is
being provided by icons having different shapes. The person can recognize the type of acoustic
environment provided in the vehicle 1. Different colors may be attached to the icons having
different shapes shown in FIG. As a result, the listener can recognize the type of acoustic
environment provided in the vehicle 1 not only by the shape of the icon displayed on the screen
of the display unit 34 but also by the color of the icon.
[0051]
FIG. 9 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 9, a sign indicating the provision of an individual
sound environment is a substantially circular icon 60 on which information indicating the type of
the sound source 38 currently being reproduced is superimposed. , 61, and 62, and an icon 63
which graphically represents information indicating the type of the sound source 38 currently
being reproduced. On the left side of the thick arrow shown in FIG. 9, a sign indicating that the
same acoustic environment is provided is represented by four substantially circular icons. The
four icons 60 to 63 on the right side of the thick arrow in FIG. 9 or the four icons on the left side
of the thick arrow correspond to the position of the seat in the vehicle 1.
09-05-2019
16
[0052]
An icon 60 shown in FIG. 9 indicates that the sound source 38 currently subjected to
reproduction processing is a radio, and in the seat 3a corresponding to the icon 60, provision of
an individual acoustic environment is performed with the radio as the sound source 38. ing.
Further, an icon 61 shown in FIG. 9 indicates that the sound source 38 currently subjected to the
reproduction processing is a CD, and in the seat 3 b corresponding to the icon 61, provision of an
individual acoustic environment using the CD as the sound source 38 It has been done.
Furthermore, an icon 62 shown in FIG. 9 indicates that the sound source 38 currently being
reproduced is a DVD, and the seat 3c corresponding to the icon 62 provides an individual
acoustic environment using the DVD as the sound source 38. It has been done. An icon 63 shown
in FIG. 9 indicates that the sound source 38 currently being reproduced is a portable audio
recording medium, and the seat 3 d corresponding to the icon 63 is a portable audio recording
medium Providing an individual acoustic environment as a sound source 38 is performed.
[0053]
When the icons 60, 61, 62, and 63 shown in FIG. 9 are displayed on the screen of the display
unit 34, the listener recognizes that the provision of the individual sound environment is being
performed, and the playback process is currently being performed. It is possible to recognize the
type of sound source 38 that is being played. On the other hand, when four substantially circular
icons shown in FIG. 9 are displayed on the screen of the display unit 34, the same kind of icons
are displayed on the screen of the display unit 34. It can be recognized that the offer is being
made.
[0054]
FIG. 10 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 10, a sign indicating the provision of an individual
acoustic environment is a substantially circular icon 60 on which information indicating the type
of the sound source 38 currently being reproduced is superimposed. , 61 and 62, and an icon 63
which graphically represents information indicating the type of the sound source 38 currently
being reproduced. On the left side of the thick arrow shown in FIG. 10, a sign indicating that the
same acoustic environment is being provided is one of substantially circular information on
09-05-2019
17
which information indicating the type of the sound source 38 currently being reproduced is
superimposed. Represented by the icon 64. The icons 60, 61, 62 and 63 shown in FIG. 10 are the
same as in FIG. One substantially circular icon 64 shown in FIG. 10 indicates that the sound
source 38 currently being reproduced is a CD.
[0055]
When the icons 60, 61, 62, and 63 shown in FIG. 10 are displayed on the screen of the display
unit 34, the listener recognizes that the provision of the individual acoustic environment is being
performed, and the playback process is currently performed. It is possible to recognize the type
of sound source 38 that is being played. On the other hand, when one substantially circular icon
64 shown in FIG. 10 is displayed on the screen of the display unit 34, the listener recognizes that
the provision of the same acoustic environment is being performed, and the current reproduction
process The type of sound source 38 being performed can be recognized.
[0056]
FIG. 11 is a view showing an example of the sign according to the present embodiment. On the
right side of the thick arrow shown in FIG. 11, a sign indicating that an individual acoustic
environment is provided is a substantially circular icon 60 on which information indicating the
type of the sound source 38 currently being reproduced is superimposed. , 61 and 62, and an
icon 63 which graphically represents information indicating the type of the sound source 38
currently being reproduced. On the left side of the thick arrow shown in FIG. 11, four signs that
indicate provision of the same acoustic environment are four substantially circular shapes in
which information indicating the type of the sound source 38 currently being reproduced is
superimposed. Represented by the icons 65, 66, 67 and 68. The icons 60, 61, 62 and 63 shown
in FIG. 11 are the same as in FIG. Four substantially circular icons 65, 66, 67 and 68 shown in
FIG. 11 indicate that the sound source 38 currently subjected to reproduction processing is a CD.
Further, similarly to the icon shown in FIG. 5, the icon shown in FIG. 11 corresponds to the
position of the seat in the vehicle 1.
[0057]
When the icons 60, 61, 62, and 63 shown in FIG. 11 are displayed on the screen of the display
unit 34, the listener recognizes that the provision of the individual sound environment is being
09-05-2019
18
performed, and the playback process is currently being performed. It is possible to recognize the
type of sound source 38 that is being played. On the other hand, when the icons 65, 66, 67 and
68 shown in FIG. 11 are displayed on the screen of the display unit 34, the listener recognizes
that the provision of the same acoustic environment is being performed, and the reproduction
process is currently performed. Can recognize the type of sound source 38 that is being
performed.
[0058]
When the navigation processing is performed by the control unit 37, the current position of the
vehicle 1 or a map around the vehicle 1 is displayed on the screen of the display unit 34. In this
case, a sign indicating that an individual acoustic environment is provided or a sign indicating
that an identical acoustic environment is provided is displayed at a position other than the center
on the screen of the display unit 34. Do. That is, the display is performed at a position that does
not interfere with the current position of the vehicle 1 displayed on the screen of the display unit
34 or a map around the vehicle 1 or the like. For example, as shown in FIG. 12, the icon 70 may
be displayed in the upper right corner on the screen of the display unit 34. Further, on the screen
of the display unit 34, an area where a current position of the vehicle 1 or a map around the
vehicle 1 is displayed and an area where the icon 70 is displayed may be displayed separately.
[0059]
Here, setting confirmation and setting change of the acoustic environment in the vehicle 1 by the
listener will be described. For example, the listener causes the setting screen of the acoustic
environment to be displayed on the screen of the display unit 34 by selecting the icon 70
illustrated in FIG. 12 via the operation unit 35. When the same acoustic environment is provided
in the vehicle 1, sound source information and music information are displayed on the setting
screen of the acoustic environment. The sound source information is information indicating the
type of the sound source 38 such as CD, MD, DVD, HD, AUX (auxiliary), and the like, and the
music information is information such as a music title and playback time. When provision of an
individual acoustic environment is performed in the vehicle 1, sound source information and
music information are displayed on the setting screen of the acoustic environment for each
sound output to each seat. In the setting screen of the acoustic environment, it is also possible to
perform basic setting of the sound system 10 such as the volume of the sound output in the
vehicle 1, the virtual sound field, and the equalizer.
09-05-2019
19
[0060]
<Modification> As described above, when the provision of the individual acoustic environment is
performed in the vehicle 1, a sign indicating that the provision of the individual acoustic
environment is performed is displayed on the screen of the display unit 34. In the case where the
same acoustic environment is provided in the vehicle 1, a sign indicating that the same acoustic
environment is provided is displayed on the screen of the display unit 34. In this modification,
the following modification may be made.
[0061]
For example, only when the provision of the individual acoustic environment is performed in the
vehicle 1, a sign indicating that the provision of the individual acoustic environment is performed
may be displayed on the screen of the display unit 34. . When the same acoustic environment is
provided in the vehicle 1, a sign indicating that the same acoustic environment is provided may
not be displayed on the screen of the display unit 34. . If a sign indicating that the provision of
the individual acoustic environment is being performed is displayed on the screen of the display
unit 34, the listener should recognize that the provision of the individual acoustic environment is
being performed. Can. Then, when the sign indicating that the provision of the individual acoustic
environment is performed is not displayed on the screen of the display unit 34, the listener
recognizes that the provision of the same acoustic environment is performed. can do.
[0062]
Further, for example, only when the provision of the same acoustic environment is performed in
the vehicle 1, a sign indicating that the provision of the same acoustic environment is performed
is displayed on the screen of the display unit 34. It is also good. And when provision of an
individual acoustic environment is performed in the vehicle 1, you may make it not display the
label which shows that provision of an individual acoustic environment is performed on the
screen of the display part 34. . If a sign indicating that the same acoustic environment is being
provided is displayed on the screen of the display unit 34, the listener should recognize that the
same acoustic environment is being provided. Can. Then, when a sign indicating that the same
individual acoustic environment is being provided is not displayed on the screen of the display
unit 34, the listener is aware that the individual acoustic environment is being provided. It can be
recognized.
09-05-2019
20
[0063]
It is the schematic of the vehicle by which the sound system which concerns on this embodiment
is mounted. It is explanatory drawing of the leak sound reduction process of the acoustic system
which concerns on this embodiment. It is a figure showing the composition of the sound system
concerning this embodiment. It is a flowchart which shows the flow of the display process in the
sound system which concerns on this embodiment. It is an example of the label | mark which
concerns on this embodiment. It is an example of the label | mark which concerns on this
embodiment. It is an example of the label | mark which concerns on this embodiment. It is an
example of the label | mark which concerns on this embodiment. It is an example of the label |
mark which concerns on this embodiment. It is an example of the label | mark which concerns on
this embodiment. It is an example of the label | mark which concerns on this embodiment. It is an
example of the screen displayed on the display part which concerns on this embodiment.
Explanation of sign
[0064]
Reference Signs List 1 vehicle 2 vehicle space 3 seat 4 speaker 5 error microphone 10 sound
system 12 other speaker 13 self-seat speaker 14 self-seat error microphone 15 virtual sound
source 21 other-seat sound source 22 leakage sound reduction filter 23 self-seat sound source
24 virtual sound source filter 25 back sound source inverse filter 26 auxiliary filter 31 main
amplifier 32 audio output unit 33 DSP 34 display unit 35 operation unit 36 interface unit 37
control unit 38 sound source 39 reproduction device 40 CPU 41 memory
09-05-2019
21
Документ
Категория
Без категории
Просмотров
0
Размер файла
34 Кб
Теги
jp2009143498
1/--страниц
Пожаловаться на содержимое документа