JPS60237492A - Acoustic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention reproduces an accompaniment signal, adds a reverberation effect to this and an acoustic signal from a microphone, amplifies it with an appropriate frequency characteristic, and then synthesizes it to a speaker. play. The present invention relates to an audio device called a karaoke device, and particularly to a changeover switch for its reverberation effect and frequency characteristics.

[Prior art]

Conventionally, there has been a device of this type as shown in FIG.

FIG. 1 is a block diagram showing the configuration of a conventional audio device called a karaoke device. In FIG. (2) is an amplifier that amplifies the output of this magnetic head, (3) is an input terminal from a microphone (not shown), (4) is an amplifier for the microphone signal from this input terminal (3), and (5) is this amplifier. Create reverberation of the output signal of the amplifier (4). a reverberation effect generation device capable of switching reverberation time; (6) a mixer for mixing the output of the amplifier (4) with the output of the reverberation effect generation device (5); (71 an amplifier capable of switching frequency characteristics; 8) is this amplifier (
7) and the output of the accompaniment signal amplifier (2), (9) is an amplifier that amplifies the output of this mixer, α0 is a speaker, and aυ is the reverberation effect generator (5). ) Reverberation effect changeover switch that changes the reverberation time of
z is a frequency characteristic changeover switch for changing the frequency characteristic 9 of the amplifier (7), for example, the degree of amplification in the low frequency region.

In the above configuration, the singer selects the reverberation time with the switch aυ according to the performance to be performed, and also selects the reverberation time with the switch
2, I was singing by selecting the frequency characteristics. However, when such acoustic equipment is used for emcees, the reverberation time is reduced to ensure sound clarity, and the output in the low frequency range is reduced, or when used for singing such as enka, the reverberation time is reduced. Selection of reverberation time and frequency characteristics, such as increasing the reverberation time and decreasing the output of the low frequency region when singing a crisp song. This has the drawback that the user is forced to perform two operations, one for selecting one, and the operation is complicated.

[Summary of the invention]

The present invention has been made to eliminate the drawbacks of the conventional ones as described above, and includes a predetermined combination of the reverberation effect to be changed and the frequency characteristic to be changed to the reverberation effect changeover switch and the frequency characteristic changeover switch. By having a number of switching contacts according to the number of switches, and configuring these two switches to be linked so that they can be switched with a single operation,
The object of the present invention is to provide an audio device that is extremely easy to operate and can be used for multiple purposes.

[Embodiments of the invention]

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

FIG. 2 is a block diagram showing one embodiment of the present invention.
In the figure, (1) to H indicate exactly the same configuration as in FIG. The switch is configured so that it can be switched with a single operation, and the reverberation effect generator + 51 reverberation time can be switched between two reverberation effects (small), and the amplifier (7) has two frequency characteristics: large and small amplification in the low frequency region. Among the combinations, the most commonly used combinations are combination A of small reverberation time and low frequency region amplification factor, combination B of large reverberation time and low frequency region amplification factor, and reverberation. Each switch α4α9 is provided with three contacts corresponding to the three combinations C of large time and low frequency range amplification, and these two switches are configured to be switched in conjunction with each other.

In such a configuration, when used as a host, etc., by switching the selector switch Q3) to A, easy-to-listen, high-clarity audio with a small reverberation time and low output in the low frequency range can be obtained. When singing enka.

If you switch to C, you will get a moody singing output with a long reverberation time and a large output in the low frequency range.

If you want to sing a song with even more clarity, switch 03 may be switched to B. Note that the case where the reverberation time is small and the output in the low frequency range is large is not often used, so it has been omitted, but it may be provided if necessary.

In the above embodiment, the magnitude of the reverberation effect is changed by changing the magnitude of the reverberation time, but the magnitude of the reverberation may be changed. Also, an example was shown in which the amplification degree was changed depending on the frequency to a signal to which a reverberation effect was added.

The reverberation effect may be added after first changing the amplification degree depending on the frequency.

Furthermore, the number of reverberation effects and frequency characteristics that can be selected from 9,
It goes without saying that the number of combinations is not limited to two in each of the above embodiments, but may be three or more, and the number of combinations thereof is not limited to three, but can be selected as appropriate.

〔Effect of the invention〕

Since the present invention is configured as described above, the reverberation effect and frequency characteristics of the microphone signal can be changed with a single operation, and the operation is extremely easy.

This has the effect of providing an acoustic device that can be used for various purposes.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a conventional audio device called a karaoke device, and FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, position l) is a magnetic head for reproducing accompaniment signals. (2) is the amplifier, (3) is the microphone input terminal, (4
1 is an amplifier, (5) is a reverberation effect generation device capable of switching reverberation effects, (6) is a mixer, (71 is an amplifier capable of switching local wave number characteristics, (8) is a mixer, (9) is an amplifier, Ol is a speaker. Country 0 is a single-operation interlocking changeover switch, Q41 is its reverberation effect changeover switch, and nsi is its frequency characteristic changeover switch. In the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) After reproducing the accompaniment signal and passing it and the audio output signal from the microphone through a reverberation effect generator that provides different reverberation effects by switching, and an amplifier that provides amplification of different frequency characteristics by switching. In an acoustic device that is synthesized and played through a speaker, the number corresponds to a predetermined number of combinations of a plurality of reverberation effects provided by switching the reverberation effect generating device and a plurality of frequency characteristics provided by switching the amplifier. An audio device characterized in that two changeover switches, one for changing reverberation effects and the other for changing frequency characteristics, each having a changeover contact point, are configured so that they can be switched in conjunction with each other with a single operation. (2) The plurality of reverberation effects given by switching the reverberation effect generator described above are two reverberation effects of large and small reverberation times, and the plurality of frequency characteristics given by switching the above amplifier are large and small amplification in the low frequency region. The above two selector switches have two frequency characteristics: small remaining time,
A changeover switch for changing a reverberation effect having three changeover contacts of dog and large, and a changeover switch for frequency characteristic change having three changeover contacts of low frequency region amplification small, small and dog. The acoustic device according to item 1.