JP2000197198A - Sound image moving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to easily learn how to operate the title device by realizing sound image movement, which has been realized through provision of two dimensional or three dimensional information to a control section, by means of providing linear information to a control means so as to relieve the load of the user. SOLUTION: A worker operates an operating knob of an entry fader to trace points of a sound image moving path in a linear motion (one stroke writing) while viewing a sound image moving path menu displayed on a displaying section 5 so as to provide a signal to a control section 2. The control section 2 generates sound image position control information on the basis of a signal from an operation section 4 and supplies the information to a sound image movement processing section 1, which moves a position of a sound image in a sound field on the basis of the sound image position control information so as to apply mixing control to a moving object sound source A thereby providing an output to a plurality of speakers #1,#2,..., #k,...-, #n.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound image moving device for moving a position of a sound image in a sound field such as a hall.

[0002]

2. Description of the Related Art When moving a sound image in an acoustic system, a sound image moving device is used. This sound image moving device has been realized by providing two-dimensional or three-dimensional information to a control unit (CPU) in real time using a joystick or a touch panel for generating position control information of a sound image. That is, position control information of a sound image is generated using a moving joystick or the like equipped on a control surface of the sound system, and the position of the sound image specified by the joystick or the like is displayed on a display device, and the operation of the joystick or the like is performed. Depending on,
The display of the sound image position was changed to move the sound image.

[0003]

However, in the above-described conventional sound image moving apparatus, the sound image is moved using a moving joystick or the like, and it is necessary to send two-dimensional (plane) information. In addition, if the user is not familiar with the operation method of the moving joystick or touch panel, the sound image cannot be moved well, and the degree of crossover at the time of moving the sound image cannot be set. There was a problem that it could not be performed.

[0004] Furthermore, there is a problem that two operation elements such as a joystick and a touch panel need to be provided when moving a sound image in a vertical direction (three-dimensional), although it can cope with a sound image movement on a plane.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object the sound image movement realized by providing two-dimensional or three-dimensional information to a control unit. Is provided by providing one-dimensional information to the control means, thereby reducing the load on the user and providing a sound image moving device capable of easily learning the operation.

[0006]

In order to achieve the above object, a sound image moving apparatus according to the present invention controls mixing of a sound source to be moved, outputs the sound to a plurality of speakers arranged in a sound field, and sets a sound image position. Sound image movement processing means for moving the position of a sound image in a sound field based on control information; display means for displaying sound image movement paths corresponding to a plurality of speakers arranged in the sound field; While generating position control information and supplying it to the sound image movement processing means,
Sound image movement control means for displaying the sound image movement path corresponding to the plurality of speakers arranged in the sound field on the display means to indicate the position of the sound image, and pointing to the plurality of speakers arranged in the sound field Operating means for setting a sound image moving path connecting the points and tracing the points in the sound image moving path with one-dimensional movement to supply a signal to the sound image moving control means.

Therefore, the operator operates the operating means while watching the sound image moving path displayed on the display means, and traces the points along the sound image moving path by one-dimensional movement to supply a signal to the sound image moving control means. I do. The sound image movement control means generates sound image position control information based on a signal from the operation unit and supplies the sound image position control information to the sound image movement processing means.The sound image movement processing means determines the position of the sound image in the sound field based on the sound image position control information. The sound source is moved, and the sound source to be moved is mixed and output to a plurality of speakers.

For this purpose, the sound image movement which has conventionally been realized by providing two-dimensional or three-dimensional information to the control unit can be realized by providing one-dimensional information to the sound image movement control means. As described above, since the sound image movement can be realized only by providing the one-dimensional information to the sound image movement control means, the load on the user can be reduced and the operation can be easily learned.

[0009]

A sound image moving apparatus according to the first aspect of the present invention controls a sound source to be moved, outputs the sound to a plurality of speakers arranged in a sound field, and outputs the sound field based on sound image position control information. Sound image movement processing means for moving the position of the sound image in, display means for displaying a sound image movement path corresponding to a plurality of speakers arranged in the sound field, and sound image position control information generated by a signal from an operation unit, Sound image movement control means for supplying to the sound image movement processing means, and displaying, on the display means, a sound image movement path corresponding to a plurality of speakers arranged in the sound field to indicate where the sound image is located;
Setting a plurality of loudspeakers arranged in a sound field into points, setting a sound image movement path connecting the points, tracing the points in the sound image movement path with one-dimensional movement, and supplying a signal to the sound image movement control means; Means.

[0010] With this configuration, the operator operates the operating means while looking at the sound image movement path displayed on the display means, traces the points along the sound image movement path in a one-dimensional motion, and sends a signal to the sound image movement control means. Supply. The sound image movement control means generates sound image position control information based on a signal from the operation unit and supplies the sound image position control information to the sound image movement processing means.The sound image movement processing means determines the position of the sound image in the sound field based on the sound image position control information. The sound source is moved, and the sound source to be moved is mixed and output to a plurality of speakers.

Therefore, the sound image movement which has conventionally been realized by giving two-dimensional or three-dimensional information to the control unit can be realized by giving one-dimensional information to the sound image movement control means. As described above, since the sound image movement can be realized only by providing the one-dimensional information to the sound image movement control means, the load on the user can be reduced and the operation can be easily learned.

According to a second aspect of the present invention, in the sound image moving apparatus according to the first aspect, the operating means has an operation element for tracing a point in the sound image moving path by one-dimensional movement. It is a fader.

With this configuration, by moving the operation element in the fader, it is possible to trace between points on the sound image moving path by one-dimensional movement. For this,
The same operation and effect as the operation and effect of the first aspect of the invention can be obtained.

According to a third aspect of the present invention, there is provided the sound image moving apparatus according to the first aspect, wherein the operation means uses a two-dimensional or three-dimensional sound image moving path setting device to move the sound image. It has a function to set a route in advance.

With this configuration, not only can the same operation and effect as the above-mentioned invention of claim 1 be obtained, but also
Using a three-dimensional or three-dimensional sound image movement path setting device,
It is possible to set the sound image moving path while visually grasping the position where the sound image is localized.

According to a fourth aspect of the present invention, there is provided a sound image moving apparatus according to the first, second or third aspect, wherein a crossover level is set with respect to a sound image movement between each point of the sound image moving path. Was set.

According to this configuration, not only the same operation and effect as the above-described first embodiment can be achieved, but also by setting a crossover level with respect to the movement of the sound image between the points on the sound image movement path, the fineness can be obtained. Sound image movement can be realized.

According to a fifth aspect of the present invention, there is provided a sound image moving apparatus according to the second, third, or fourth aspect, wherein each point of the sound image moving path is determined by an equal time method and a constant velocity method. Was assigned to the operator.

According to this configuration, not only the same operation and effect as the above-described first embodiment can be obtained, but also the method of arranging each point on the operation device by the isochronous method and the constant velocity method, Points can be arranged on the operator according to the actual distance or arranged at equal intervals, and points can be arranged according to the user's preference.

According to a sixth aspect of the present invention, in the sound image moving apparatus according to any one of the first to fifth aspects, the total time of the sound image movement is given to the sound image moving path setting means of the operating means. Thus, the sound image moving path is automatically moved in the given total time.

According to this configuration, not only the same operation and effect as the above-described first embodiment can be achieved, but also the sound image movement can be automatically realized, and the sound image movement operation is not performed at all. Sound image movement can be realized.

According to a seventh aspect of the present invention, in the sound image moving apparatus according to any one of the first to sixth aspects, the operation of moving the sound image is stored in the storage means to enable reproduction.

With this configuration, it is possible to not only achieve the same operation and effect as the operation and effect of the first aspect of the present invention, but also to record and reproduce the operation content of the sound image movement. For this reason, by recording the operation once when it is desired to perform the same movement repeatedly, it is possible to save labor for the second and subsequent operations.

In the sound image moving apparatus according to the present invention, the sound image moving path is stored in the storage means so that the sound image moving path can be reused.

According to this configuration, not only the same operation and effect as the above-described first embodiment can be obtained, but also the sound image moving path can be saved and reused. For this reason, even when it is desired to perform some sound image movements, it is not necessary to set the sound image movement path every time, and the movement path can be set by reading the stored data. Operation can be saved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of a configuration of a sound image moving device according to the present invention, and FIG. 2 is a front view of an operation panel.

As shown in FIG. 1, the sound image moving device according to the present invention has a sound image moving processing section (sound image moving processing means) 1, a control section (sound image moving control means) 2, a storage device (storage means) 3, and an operating section. (Operation means) 4 and a display unit (display means) 5 having a display.

The sound image movement processing section 1 is provided with a digital signal processing device, which inputs a digital signal from a sound source 5 to be moved, adjusts acoustic characteristics and the like, and performs appropriate mixing control to perform digital mixing. Output as signals, and convert these to analog signals with a D / A converter.
Speakers # 1, # 2, #k of sound field 6 like a hall
.. Function to supply #n.

The sound image movement processing unit 1 has a function to change the position of the sound image formed by the sound loudspeaked by the speakers # 1, # 2... #K. Is what you do.

Information for moving the sound image, that is, sound image position control information is supplied from the CPU of the control unit 2 to the sound image movement processing unit 1. The CPU of the control unit 2 obtains sound image position control information from a signal from the operation unit 4.
Further, the CPU displays a plurality of speakers # 1, # 2,...
#K... A sound image moving route setting screen corresponding to #n is displayed to indicate where the sound image is located.

The operation unit 4 has an operation panel 7 shown in FIG. The operation panel 7 has a function key 8 for calling a screen on the display of the display unit 5.
A numeric keypad 9 for inputting a numerical value in a focused portion of the screen, a control key 10 for controlling start and stop of sound image movement, a cursor key 11 for moving a cursor on the screen, and pointing related to the screen.・ Move the track ball 12 to be used as a device and the data value of the focused portion of the screen.
When the switch is turned on, an entry fader 13 for providing a sound image moving position and an input fader 14 are provided. The entry fader 13 includes an operator 13A for performing one-dimensional movement in an operation area thereof.

The operation section 4 has a function of setting a sound image moving path in advance by using a two-dimensional or three-dimensional sound image moving path setting device. With this function, the sound image movement path can be set using a two-dimensional or three-dimensional sound image movement path setting device while visually grasping the position where the sound image is localized.

The storage device 3 stores the operation contents of the sound image movement and the sound image movement path. By recording the operation contents of the sound image movement, it is possible to reproduce the operation contents, and by storing the sound image movement path, the sound image movement path can be saved and reused.
For this reason, even when it is desired to perform some sound image movement, it is not necessary to set the sound image movement path every time, and the movement path can be set by reading out the stored data. .

Next, the sound image movement will be described.

The sound image movement is performed by controlling the change in the volume of the speakers installed at the two points in time sequence. That is, for a plurality of speakers installed in the hall (sound field 6), the locus of the sound image movement is set in one stroke, and the loudness of each of the two speakers present in the locus is cross-fade, so that the locus of the loudness movement is changed. Get the effect.

As shown in FIG. 3, n speakers # 1, # 2... #K.
When the locus of the speakers # 1, # 2,..., #K,... #N moves in the sound image for the total time T, that is, the sound image moves between three or more speakers arranged two-dimensionally. There is a method of moving with time average (equal time method) and a method of moving with speed average (constant speed method).

In the isochronous method, the moving time between the speakers is the same. That is, since the whole sound image movement is completed in the total time T, the distance between the speakers, for example,
Since the sound image moving time Tk between the speaker # k-1 and the speaker #k is n-1 between the speakers, Tk =
T / n-1, which means that the sound image moves in this sound image moving time Tk. And the sound image moving time Tk between the speakers
Is defined by a cross-fade pattern.

The crossfade is a level change pattern with respect to a time change presented to obtain a smooth sound image movement when a speaker between two points is moved for a sound image movement time Tk. The cross-fade pattern has a cross-fade level (cross-over level) Lx as shown in FIG.

[DB] and the cross time Tx [s].

In FIG. 4, the volume L of speaker # k-1
The change in volume of k-1 and the volume Lk of the speaker #k is divided into three sections (1), (2) and (3), and the level is calculated by the following equations (Equation 1) [Equation 2] [Equation 3] Is given.

Section (1): [Equation 1]

[0042]

(Equation 1)

Section (2): [Equation 2]

[0044]

(Equation 2)

Section (3): [Equation 3]

[0046]

(Equation 3)

The constant speed method is a method of moving a sound image between speakers having variations at a constant speed. In order to achieve a constant speed, it is necessary to first calculate the total moving distance L in advance. The formula [Equation 4] for calculating the total moving distance L is as follows.

[0048]

(Equation 4)

Note that xk and yk indicate the coordinates of the speaker #k.

Next, each speaker # k-1 and speaker #
The travel time between k is obtained. The moving time of the sound image during this time is T
Assuming that k, the sound image moving time Tk can be obtained by the following equation (Equation 5).

[0051]

(Equation 5)

Then, the sound image moving time Tk between the speakers
Is defined by a cross-fade pattern. This crossfade is the same as in the case of the isochronous method described above.

Next, it is assumed that a sound image is moved by a constant time method and a constant velocity method in a place having a speaker arrangement as shown in FIG. In FIG. 5, L1 is the distance between speaker # 1 and speaker # 2, L2 is speaker # 2 and speaker #
L3 is the distance between the speakers # 3 and # 4. (0, 0) is the coordinates of speaker # 1, (0, 1) is the coordinates of speaker # 2, and (2, 0) is
1) is the coordinates of speaker # 3, and (2, 0) is the coordinates of speaker # 4.

First, when the sound image is moved by the isochronous method, the sound image moving screen displayed on the display includes:
Four speakers # 1, # 2, # 3, and # 4 are installed in a plane, and these four speakers # 1, # 2, # 3,
The sound image moves along the locus of # 4 for a total time (total time) T. The total movement time T is set to 10 [s]. In this case, the sound image moving time of each of the speakers # 1 to # 4 is T / 3 =
3.33 [s] is obtained. And entry fader 1
As shown in FIG. 6, assuming that 10 [s] is 100%, as shown in FIG.

The user looks at the sound image moving screen B displayed on the display and moves the operator 13A of the entry fader 13 from the starting speaker # 1 to the speakers # 2, # 3, and # 4 in order. By this operation, the CPU of the control unit 2 transmits the sound image position control information for moving the sound image to a position on the sound field corresponding to the position of the speaker through which the operation element 13A passes to the digital signal processing device of the sound image movement processing unit 1. Supply. This digital signal processing device inputs a digital signal from the moving target sound source 5, adjusts acoustic characteristics and the like, and then performs appropriate mixing control.
These are output as digital signals, and these are converted into analog signals by a D / A converter.
1, # 2, # 3, and # 4.

When moving the sound image by the constant velocity method,
The total movement time T is set to 10 [s]. In this case, the distance Lk between the speakers # 1 to # 4 is L1 =
1, L2 = 2 and L3 = 1. Also, since the total moving distance L is L1 + L2 + L3, each speaker # 1
The sound image movement times T1, T2, and T3 between # 4 and # 4 are as follows. T1 = L1 / L × T = 1/4 × 10 = 2.5 [s] T2 = L2 / L × T = 2/4 × 10 = 5 [s] T3 = L3 / L × T = 1/4 × 10 = 2.5 [s]

Then, as shown in FIG. 7, the entry fader 13 moves from the starting speaker # 1 to the speakers # 2, # 3, and # 4 in order from 10 [s] as 100%.

That is, the user looks at the sound image moving screen B displayed on the display and sees the entry fader 1.
3 from the starting speaker # 1 to the speaker # 1.
2. Move in order of speaker # 3 and speaker # 4. By this operation, the CPU of the control unit 2 transmits the sound image position control information for moving the sound image to a position on the sound field corresponding to the position of the speaker through which the operation element 13A passes to the digital signal processing device of the sound image movement processing unit 1. Supply. This digital signal processing device inputs a digital signal from the moving target sound source 5, adjusts acoustic characteristics and the like, performs appropriate mixing control, and outputs a digital signal.
The signal is converted into an analog signal by the A converter and supplied to the speakers # 1, # 2, # 3, and # 4 of the sound field 6.

According to the above-described embodiment, the worker
While looking at the sound image movement path screen displayed on the display unit 5, the operator 13A of the entry fader 13 is operated to send a signal to the tracing control unit 2 between points on the sound image movement path by one-dimensional movement (one-stroke). Supply. The control unit 2 generates sound image position control information based on a signal from the operation unit 4 and supplies the generated sound image position control information to the sound image movement processing unit 1. The sound image movement unit processing unit 1 generates a sound image in a sound field based on the sound image position control information. Is moved, and the sound source A to be moved is mixed and output to a plurality of speakers # 1, # 2, #k, #n.

Therefore, the sound image movement, which was conventionally realized by giving two-dimensional or three-dimensional information to the control unit, can be realized by giving one-dimensional information to the control unit 2. As described above, since the sound image movement can be realized only by providing the one-dimensional information to the control unit 2, the load on the user can be reduced and the operation can be easily learned.

[0061]

As described above, according to the sound image moving apparatus according to the first aspect of the present invention, the operator operates the operating means while watching the sound image moving path displayed on the display means, thereby moving the sound image. A signal is supplied to the sound image movement control means by tracing between points on the path with one-dimensional movement. The sound image movement control means includes:
A sound image position control information is generated by a signal from the operation unit and supplied to the sound image movement processing means. The sound image movement processing means moves the position of the sound image in the sound field based on the sound image position control information, and Can be mixed and output to a plurality of speakers.

Therefore, the sound image movement which has conventionally been realized by giving two-dimensional or three-dimensional information to the control unit can be realized by giving one-dimensional information to the sound image movement control means. As described above, since the sound image movement can be realized only by providing the one-dimensional information to the sound image movement control means, the load on the user can be reduced and the operation can be easily learned.

According to the sound image moving device of the second aspect of the present invention, the operating means sets the distance between the points on the sound image moving path to one.
Since the fader has an operator that traces in a dimensional motion, the operator in the fader can be moved to trace a point in the sound image moving path with a one-dimensional motion. For this reason, the same function and effect as the above-described claim 1 can be obtained.

According to the sound image moving device of the third aspect of the present invention, not only can the same effects as those of the first aspect of the present invention be obtained, but also the operating means can be two-dimensional or three-dimensional. By using the sound image movement path setting device, by having a function of setting the sound image movement path in advance,
Using the two-dimensional or three-dimensional sound image moving path setting device, the sound image moving path can be set while visually grasping the position where the sound image is localized.

According to the sound image moving device of the fourth aspect of the present invention, not only the same effects as those of the first aspect of the present invention can be obtained, but also the sound image moving between each point of the sound image moving path. By setting the crossover level for, fine sound image movement can be realized.

According to the sound image moving apparatus according to the fifth aspect of the present invention, not only the same operation and effect as those of the first aspect of the present invention can be obtained, but also the operation means of the isochronous method and the constant velocity method. By having a method of arranging each point to the operator, it is possible to arrange the points according to the actual distance on the operator or at equal intervals, and to arrange the points according to the user's preference Can be.

According to the sound image moving device according to the sixth aspect of the present invention, not only can the same effects as those of the first aspect of the present invention be provided, but also the sound image moving path setting means of the operating means. To give the total time for the sound image movement,
By automatically moving the sound image in the given total time on the sound image movement path, the sound image movement can be automatically realized, and the sound image movement can be realized without performing any sound image movement operation. be able to.

According to the sound image moving device of the seventh aspect of the present invention, not only the same effects as those of the first aspect of the present invention can be obtained, but also the operation of moving the sound image is stored in the storage means. By enabling the reproduction, the operation content of the sound image movement can be recorded and reproduced. For this reason, by recording the operation once when it is desired to perform the same movement repeatedly, it is possible to save labor for the second and subsequent operations.

The sound image moving apparatus according to the eighth aspect of the present invention not only can provide the same operation and effect as the above-described first embodiment, but also stores and reuses the sound image moving path by the storage means. Is enabled, the sound image movement path can be saved and reused. For this reason, even when it is desired to perform some sound image movements, it is not necessary to set the sound image movement path every time, and the movement path can be set by reading the stored data. Operation can be saved.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view of a sound image moving device according to the present invention.

FIG. 2 is a front view of an operation panel.

FIG. 3 is an explanatory diagram of a speaker arrangement in a sound field.

FIG. 4 is an explanatory diagram of a crossfade pattern.

FIG. 5 is an explanatory diagram of a sound image moving path.

FIG. 6 is an explanatory diagram of an isochronous method.

FIG. 7 is an explanatory diagram of a constant velocity method.

FIG. 8 is an explanatory diagram of a sound image moving route screen.

[Explanation of symbols]

 Reference Signs List 1 sound image movement processing unit (sound image movement processing means) 2 control unit (sound image movement control means) 3 storage device (storage means) 4 operation unit (operation means) 5 display unit (display means) 6 sound field 7 operation panel 13 entry fader (Fader) 13A Operator

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuyuki Seki 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture F-term in Matsushita Communication Industrial Co., Ltd. 5D062 DD02

Claims (8)

[Claims] 1. A sound image movement processing means for mixing and controlling a sound source to be moved, outputting the sound to a plurality of speakers arranged in the sound field, and moving the position of the sound image in the sound field based on the sound image position control information. Display means for displaying a sound image movement path corresponding to a plurality of speakers arranged in a field, sound image position control information generated by a signal from an operation unit and supplied to the sound image movement processing means; Sound image movement control means for displaying a sound image movement path corresponding to a plurality of speakers arranged in a sound field to indicate a position where a sound image is located; Operating means for setting a sound image moving path to be connected, tracing points between points of the sound image moving path by one-dimensional movement, and supplying a signal to the sound image moving control means. Sound image moving device. 2. The sound image moving apparatus according to claim 1, wherein the operation means is a fader having an operation element that traces a point on the sound image moving path with a one-dimensional movement. 3. The sound image moving apparatus according to claim 1, wherein the operation means has a function of setting a sound image moving path in advance using a two-dimensional or three-dimensional sound image moving path setting apparatus. 4. The sound image moving device according to claim 1, wherein a crossover level is set for a sound image moving between points on the sound image moving path. 5. The sound image moving device according to claim 2, wherein each point of the sound image moving path is assigned to an operation element by an isochronous method and a constant velocity method. 6. The sound image moving path is automatically moved in the given total time by giving the total time of the sound image moving to the sound image moving path setting means of the operating means. The sound image moving device according to claim 5. 7. The sound image moving device according to claim 1, wherein the operation of moving the sound image is stored by a storage means to enable reproduction. 8. The sound image moving apparatus according to claim 1, wherein the sound image moving path is stored by a storage means to enable reuse.