JPH07203600A - Sound image shifting device - Google Patents

Abstract

PURPOSE:To reduce the setting space of a designating means at a sound image shifting position and a display means at the sound image position. CONSTITUTION:DSP 10 outputs plural inputted audio signals to the speakers 24, 26, 28 and 30 of a sound field 23 as a surroung stereo signal. The position of the sound image in the sound place 23 is shifted based on sound image position control information from CPU 32. CPU 32 displays the sound field 23 in a touch display 34, detects a contact position when a finger is touched to an optional position in the display and reports it to CPU 32. CPU 32 generates sound image position control information in accordance with it. At the same time, CPU 32 displays a sound image position display element 36 at the contact position and displays the position of the sound image.

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 the position of a sound image in a sound field.

[0002]

2. Description of the Related Art Conventionally, the above-described sound image moving device may be incorporated in an audio mixer device. FIG. 3 shows an adjusting table of an audio mixer device incorporating this sound image moving device. In this adjustment table, the adjustment unit 2 for adjusting the acoustic characteristics of the input audio signal is used.
Are provided in large numbers. In addition to this, a joystick 4 for generating sound image position control information and a display device 6 for displaying the position of the sound image designated by the joystick 4 are provided as the sound image moving device. In this display device 6, the position of the sound image is displayed by the sound image position indicator 8, and the display position of the sound image position indicator 8 changes according to the operation of the joystick 4.

[0003]

In such a sound image moving device, it is necessary to arrange both the joystick 4 and the display device 6 on the adjustment desk. In the case of a model in which such a sound image moving device is incorporated in the audio mixer device, various devices other than these are incorporated, and a large number of knobs for operating these devices are provided. . Therefore, it is difficult to secure a space for installing the joystick 4 and the display device 6. Even these joysticks 4
Even if the space for installing the display device 6 can be secured, the two devices may be installed in a considerably separated state,
In such a case, there is a problem that it is difficult to set the sound image position.

[0004]

In order to solve the above-mentioned problems, the present invention provides a sound image position control for moving the position of the sound image in the sound field of the input audio signal according to the sound image position control information. Means, and a means for detecting the contact position of the contact object on the screen, display means for displaying the sound field,
Depending on the contact position of the contact object on the screen of the display means, a sound image position control information generating means for generating the sound image position control information, and a sound image position indicator at the contact position of the contact object on the screen of the display means. And display control means for displaying.

[0005]

According to the present invention, when the position of the screen of the sound field displayed on the display means corresponding to the position where the sound image is to be moved is contacted by the contact object, the contact position is detected by the detection means, and the sound image is detected. The position control information generating means generates sound image position control information according to the detected position and supplies it to the sound image moving means. At the same time, the display control means displays the sound image position indicator at the contact position of the contact object on the display means.

[0006]

EXAMPLE In this example, as shown in FIG.
P10 (digital signal processing device), which inputs a plurality of digital audio signals, adjusts acoustic characteristics and the like, mixes them appropriately, and outputs them as a digital audio signal of a surround stereo signal,
A program for converting these into analog audio signals by the D / A converters 16, 18, 20, 22 and supplying them to the left and right speakers 24, 26, the center, and the rear speakers 28, 30 provided in the sound field 23. Has been done.

Further, the DSP 10 is configured to be able to change the position of the sound image formed by the voices amplified by the speakers 24, 26, 28, 30 in the sound field. That is, it is programmed to function as a surround pan capable of moving a sound image.

Information for moving the sound image, that is, sound image position control information is supplied from the CPU 32 to the DSP 10. The CPU 32 displays the sound image position control information on the display means,
For example, it is obtained from the touch display 34. The touch display 34 is provided with a detection switch (not shown) on the front surface of its screen. When a touching object, for example, a finger touches the screen, the touch display 34 detects the coordinates of the touched position and the CPU 32
Supply to.

On the screen of the touch display 34,
The display corresponding to the sound field 23 is made, and further, the sound image position indicator 36 showing the position of the sound image is also displayed.
The PU 32 controls the touch display 34. That is,
The CPU 32 functions as a sound image position control information generation unit and a display control unit.

As shown in FIG. 1B, when a finger touches an arbitrary position on the screen of the sound field displayed on the touch display 34, a sound image position indicator 36 is displayed at the contact position. As described above, the CPU 32 controls the touch display 34, and the sound image position control information for moving the sound image to the position on the sound field 23 corresponding to the display position is C
The PU 32 supplies the DSP 10. In addition, in the state where the sound image position indicator 36 is displayed in this manner,
As shown in (c), when the finger touches another position on the display screen of the touch display 34, the display of the sound image position indicator 36 moves to that position, and the sound image position for moving the sound image to that position. Control information is supplied to the DSP 10.

In order to perform the above control, the CPU 3
2 performs an operation as shown in the flowchart of FIG. 2, for example. First, is the touch display 34 touched?
That is, it is determined whether or not the finger touches the screen (step S
2). If not in contact, step S2 is repeated. Therefore, at this time, if the position of the sound image is already designated at a certain position, that position is maintained.

When the touch display 34 is touched, the coordinates of the touched point are read by the signal from the detection switch (step S4). Then, the sound image position control information to be supplied to the DSP 10 in order to move the sound image to this coordinate position is generated and supplied to the DSP 10 (step S6). Further, the sound image position indicator 36 is displayed at the contacted position (step S8), and the process returns to step S2.

Therefore, each time the finger touches the display screen,
Sound image position control information corresponding to the contact position is generated,
Moreover, the sound image position indicator 36 is displayed at the contact position.

In the above embodiment, the present invention is applied to the surround pan device, but it can also be applied to the movement (pan) of the sound image position in a normal 2-channel stereo.

[0015]

As described above, according to the present invention, the display means having the contact position detection means is used, and the screen of the sound field is displayed on the screen. When a position on the screen corresponding to the position to which the sound image is to be moved is contacted with a contact object, the sound image position control information generation means generates sound image position control information according to the contact position and supplies it to the sound image movement means. The display control means displays the sound image position indicator at the contact position of the contact object of the display means. Therefore, since the display means and the sound image position designation means are integrated,
Since the space for providing the designating means is not required and the space can be saved, the sound image moving position can be set by touching the display means, so that the setting means and the display means can be located at positions separated from each other. Rather, the operability is improved.

[Brief description of drawings]

FIG. 1 is a block diagram of an audio mixer device embodying a sound image moving device according to the present invention and a diagram showing a display screen of the embodiment.

FIG. 2 is a flowchart of the same embodiment.

FIG. 3 is a perspective view showing an adjusting table of an audio mixer device including a conventional sound image moving device.

[Explanation of symbols]

10 DSP (Sound Image Moving Means) 23 Sound Field 32 CPU (Sound Image Position Control Information Generating Means, Display Control Means) 34 Touch Display (Display Means)

Claims (1)

[Claims] 1. A sound image position control means for moving a position of a sound image in a sound field of an input audio signal according to sound image position control information, and a means for detecting a contact position of a contacting object on a screen, wherein the sound field is Display means to be displayed, sound image position control information generating means for generating the sound image position control information according to the contact position of the contact object on the screen of the display means, and contact position of the contact object on the screen of the display means A sound image moving device comprising: a display control means for displaying a sound image position indicator on the display.