JPH1055185A - Acoustic equipment with accompaniment performance function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an acoustic equipment with an accompaniment performance function capable of setting the most suitable sound field in the acoustic equipment provided with a 'KARAOKE' (orchestration without lyrics) function. SOLUTION: This acoustic equipment is constituted of a reproducing part 2, a display part 3, an operation part 6, a microphone 4, a speaker 9, a microcomputer 10 and a DSP part 11. Then, a sound signal is fetched by the microphone 4, and the sound signal is divided to respective frequency bands by the DSP(digital sound processor) part 11 to be displayed on the display part 3 as a frequency characteristic. Thus, a user can realize easily the required sound field by performing the equalizing processing of the sound signal based on the frequency characteristic displayed on the display part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio equipment having an accompaniment performance function, such as a compact disk or a compact cassette, having an accompaniment performance function (hereinafter also referred to as "karaoke function"). The present invention relates to an audio device with an accompaniment performance function that measures and displays the frequency characteristics of an input audio signal to improve user convenience.

[0002]

2. Description of the Related Art In recent years, with the development of electronic technology, audio equipment has become multifunctional. As an example of such audio equipment, the in-vehicle audio equipment (car audio) has been remarkably multifunctional, and the style of enjoying karaoke and listening to music such as compact discs by car audio having a karaoke function has been established.

On the other hand, an audio signal obtained from a sound source is emphasized in a specific frequency band using an equalizer or a digital sound processor (hereinafter simply referred to as “DS”).
A sound correction technique for correcting a sound field using P (abbreviated as “P”) is widely known. In particular, car audio having such a sound correction function is becoming popular.

[0004] However, there is no car audio having such a karaoke function that can measure and display the frequency characteristics of music and the like generated by itself, and conversely, an audio device that can measure and display the frequency characteristics has a karaoke function. There is no audio device that does not have both functions. Therefore, the same sound effect is not always obtained even if the same sound correction is performed in a vehicle room with a different acoustic environment, and it is very difficult to set a sound field that matches each place. was there.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the problem is that there is no conventional audio equipment having a karaoke function capable of measuring and displaying frequency characteristics. Audio equipment that can measure and display frequency characteristics does not have a karaoke function, which solves the problem that it is difficult to set an optimal acoustic environment.
An object of the present invention is to provide an audio device with an accompaniment performance function that can set an optimal sound field in each place.

[0006]

According to a first aspect of the present invention, there is provided an audio apparatus with an accompaniment performance function, an audio apparatus main body, voice input means (microphone or the like) built in or connectable to the audio apparatus main body, lyric information and the like. An audio device with an accompaniment performance function having a sound source means for outputting an accompaniment performance such as music information, and an audio control means for analyzing a frequency band of an audio signal input to the audio input means and dividing the frequency band into each frequency band; Display means for displaying the frequency characteristics of the audio signal divided and controlled by the audio control means.

According to the audio device with the accompaniment performance function of the first aspect, the audio signal output from the sound source means is collected by the audio input means, and the obtained audio signal is sent to the audio control means. The captured audio signal is divided into each frequency band by the audio control means, and the level of each frequency band is converted into a measurement curve of a predetermined stage and displayed on the display means as frequency characteristics. This allows the user to easily measure the frequency characteristics of the sound field, even if the sound field changes, for example, by changing the arrangement of furniture in the room or the position of the speaker, and to optimize the sound field accordingly. Can be modified.

According to a second aspect of the present invention, there is provided an audio equipment with an accompaniment performance function, an audio equipment main body, voice input means built in or connectable to the audio equipment main body, and a sound source for outputting an accompaniment performance such as lyrics information and music information. An audio device with an accompaniment performance function, comprising: a voice control unit that analyzes a frequency band of a voice signal including a vocal sound of a user input to a voice input unit and divides the frequency band into respective frequency bands; Display means for displaying the frequency characteristics of the audio signal divided and controlled by the control unit.

According to the second aspect of the present invention, a sound signal including a vocal sound of a user mixed with a sound signal output from a sound source means is collected by a sound input means. The sound signal obtained by the sound collection is taken into the sound control means, divided into respective frequency bands, and displayed as frequency characteristics on the display means. As a result, the user can easily know the frequency characteristics of the audio signal including the vocal sound, and can, for example, emphasize the vocal sound and confirm the sound range.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

First, referring to FIG. 1, a description will be given of a configuration of an example of a product form of an audio device with an accompaniment performance function according to the present invention. FIG. 1 is a perspective view showing an example of an audio device with an accompaniment performance function of the present invention.

Reference numeral 1 in FIG. 1 denotes an audio equipment main body. The audio equipment main body 1 includes a reproducing unit 2 such as a compact disk for inserting and playing a predetermined disk, and a frequency characteristic A and a lyrics A display unit 3 for displaying information (not shown); an input unit 5 for inputting a microphone 4 as a voice input unit; an operation unit 6; a remote control for remotely operating the audio equipment main unit 1; It comprises a control device 7, a light receiving unit 8 to which a control signal of the remote control device 7 is input, a stereo L / R speaker 9 connected to the audio equipment main body 1, and the like. Note that the audio equipment main body 1 of this example is an example of a design, and the overall shape and arrangement may be another design.

The operation of the thus configured audio equipment with accompaniment performance function of the present invention will be described.

A compact disc (CD, CD-G, video CD, DV,
D and a compact cassette etc.), a karaoke sound source, lyrics information synchronized with the sound source, a background image, and the like are recorded. The reproducing unit 2 reproduces a compact disc, separates an image signal such as lyric information and an audio signal, and displays the image signal on the display unit 3 together with a frequency characteristic A (details will be described later). The audio signal separated by the reproduction unit 2 is mixed with an audio signal input from the microphone 4 (including a vocal sound when the user sings using the microphone 4) by a DSP unit to be described later to produce a speaker. 9 from the L / R.

On the other hand, the user operates the operation unit 6 or the remote control device 7 provided in the audio equipment main body 1 to transmit a music code corresponding to a desired program. The remote control device 7 includes a conventionally known music selection key, pitch adjustment, volume adjustment, and the like. The light receiving section 8 of the audio equipment body 1 receives and decodes a predetermined format control signal transmitted from the remote control device 7, and searches and outputs a desired disc position and music position by controlling with a predetermined means. .

Next, the circuit configuration of an audio device with an accompaniment performance function according to the present invention will be described with reference to FIG. FIG. 2 is a block circuit diagram showing the configuration of an audio device with an accompaniment performance function according to the present invention. Note that parts common to the parts shown in FIG. 1 are denoted by the same reference numerals.

The circuit configuration of the audio equipment according to the present invention includes a reproducing unit 2 as a sound source unit, a display unit 3 as a display unit, an operation unit 6,
In addition to the components of the microphone 4 and the speaker 9,
It comprises a microprocessor (hereinafter simply abbreviated as “microcomputer”) 10 and a DSP unit 11 as voice control means for controlling an audio device with an accompaniment performance function.

The circuit operation of the audio equipment with the accompaniment performance function of the present invention having the above-described configuration will be described.

The microphone 4 inputs a user's voice or a voice signal from the speaker 9. That is, when the user sings using the microphone 4, the vocal sound is captured, and when the microphone 4 is not used, the voice signal generated by the speaker 9 is directly used by the DSP unit 1.
Take in 1.

The DSP unit 11 is provided with a microphone sound analysis unit (not shown), which converts an analog audio signal input from the microphone 4 into a digital signal, and converts the captured audio signal from about 20 Hz to 20 kHz. The audio signal is divided into frequency bands in the audio frequency band, and the level of each frequency band is converted into a measurement curve at a predetermined stage and displayed on the display unit 3 in the form of a bar graph or a line graph.

The DSP unit 11 performs equalizing processing of the fetched audio signal by a predetermined operation of the operation unit 6 in addition to the vocal sound and the mixing operation of the reproduction unit 2. That is, the user can easily realize a desired sound field by performing the equalizing process on the audio signal based on the frequency characteristics displayed on the display unit 3.

The loudspeaker 9 produces the sound or music processed as described above, and produces a reference sound divided into frequency bands serving as reference signals as required.

In the acoustic device with an accompaniment performance function of the present invention, the following specific effects can be obtained. First, in a conventional audio device with an accompaniment performance function having a karaoke function, it is possible to add a function for measuring and displaying the frequency characteristic of an audio signal by only partially modifying the DSP section, and to provide an accompaniment performance function. Productivity of the audio equipment can be improved.
Second, since the audio equipment with an accompaniment performance function of the present invention has a function of measuring and displaying frequency characteristics, the sound field may change due to, for example, changing the arrangement of indoor furniture or the position of speakers. In addition, the frequency characteristics of the sound field can be easily measured, and the user can perform an equalizing operation based on the measurement to correct the sound field to an optimum sound field. Third, for in-vehicle acoustic equipment used in complex sound fields such as in automobiles, the optimum sound field can be easily realized by performing equalizing operation based on the frequency characteristics obtained by measurement. Can be obtained.

The present invention is not limited to the above-described embodiment, but can adopt various embodiments. For example, in the above-described embodiment, an audio device using a disk reproduction such as a compact disk (CD) has been illustrated. However, a telephone line or an integrated digital communication network ISDN (Integrated Sequential Network)
The present invention is also applicable to communication karaoke in which music information is obtained from a database center, which is a provider, via a rvice digital network) line or the like. In addition, it goes without saying that the present invention is not limited to the embodiment described above, but can be developed in various forms.

[0025]

As described above, according to the audio device with the accompaniment performance function of the first aspect of the present invention, the audio signal output from the sound source means and the like is collected by the microphone and collected. The obtained audio signal is taken into the audio control means, divided into frequency bands, and displayed as frequency characteristics on the display means. This allows
Even if the sound field changes, for example, by changing the arrangement of furniture in the room or the position of the speaker, the user can easily measure the frequency characteristics of the sound field, and correct the sound field accordingly. It becomes possible.

Further, according to the second aspect of the present invention, the audio signal including the vocal sound of the user mixed with the audio signal output from the sound source means is output from the microphone. The sound signal collected and collected is taken into the sound control means, divided into each frequency band, and displayed on the display means as a frequency characteristic including the vocal sound. This allows
The user can easily know the frequency characteristics of the audio signal including the vocal sound, and can correct the sound field to a desired sound field.
It is informative.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an audio device with an accompaniment performance function of the present invention.

FIG. 2 is a block circuit diagram showing a configuration of an audio device with an accompaniment performance function of the present invention.

[Explanation of symbols]

1 ... Acoustic equipment main body, 2 ... Reproducing unit, 3 ... Display unit, 4
…… Microphone, 5… Input unit, 6… Operation unit, 7
...... Remote control device, 8 ... Receiver unit, 9 ...
Speaker, 10 microcomputer, 11 DSP section

Claims (5)

[Claims] 1. An audio device having an accompaniment performance function, comprising: an audio device main body; audio input means built in or connectable to the audio device main body; and sound source means for outputting an accompaniment performance. Audio control means for analyzing a frequency band of an audio signal input to the audio signal and dividing the frequency band into respective frequency bands; anddisplay means for displaying frequency characteristics of the audio signal divided and controlled by the audio control means. Characteristic sound equipment with accompaniment performance function. 2. An audio equipment with an accompaniment performance function, comprising: an audio equipment main body; audio input means built in or connectable to the audio equipment main body; and sound source means for outputting an accompaniment performance. Voice control means for analyzing a frequency band of a voice signal including a vocal sound of a user to be inputted and dividing the frequency band into respective frequency bands; and display means for displaying frequency characteristics of the voice signal divided and controlled by the voice control means. An acoustic device with an accompaniment performance function, comprising: 3. An equalizing adjusting means for adjusting a desired frequency characteristic based on a frequency characteristic of an audio signal displayed on a display means, wherein the audio equipment main body is provided with an equalizing adjusting means. An acoustic device with an accompaniment performance function according to claim 2. 4. The sound with accompaniment performance function according to claim 1, wherein the sound source means is any one of a tape-shaped medium, a disk-shaped medium, and a communication karaoke medium. machine. 5. The audio device with an accompaniment performance function according to claim 1, wherein the audio device with an accompaniment performance function is a vehicle-mounted audio device.