JPS619100A - Monaural recorded orchestral accompaniment play - Google Patents

Abstract

PURPOSE:To expand the reality of a middle sound frequency range by dividing the middle frequency range into two channels of orchestral and vocal sound, and direct sound and indirect sound by a control amplifier section and allowing one set of speaker system to reproduce the respective sound. CONSTITUTION:A microphone signal is mixed with a signal on a tape or the like and the result is amplified by a 2-channel amplifier 4. The level of a part of the signal is adjusted optionally by sound volume adjustment 11 via a band pass filter 9 and a delay element 10 and mixed with the direct sound via a buffer 14 so that one of the signals is in phase with the direct sound. Further, the other signal is mixed with the direct sound via a buffer 25 so as to be in opposite phase with the direct sound. Thus, the indirect sound is converted into two systems of signals being in phase and opposite phase to the direct sound, the signal is subject to optional level adjustment by a main sound volume adjustment 6 and the result is reproduced as sound from a speaker system 2 via a main amplifier 7.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はモノーラルカラオケシステムの音質を改善する
ことを目的とし再生音の中域をワイドな感覚にすること
によりステレオカラオケと似た臨場感を出すモノーラル
カラオケシステムに関するものである。□ 〔発明の背景〕 従来のカラオケシステムには第１図に示すよう°なモノ
−ジル方式が一般的である。この方式では、マイクの音
とオーケストラの音が一つのスピーカより再生され定位
感、臨場感に欠ける欠点がある。[Detailed Description of the Invention] [Field of Application of the Invention] The purpose of the present invention is to improve the sound quality of a monaural karaoke system, and to create a sense of presence similar to stereo karaoke by making the midrange of the reproduced sound wide. This relates to a monaural karaoke system. □ [Background of the Invention] Conventional karaoke systems generally employ a mono-sil system as shown in FIG. This method has the disadvantage that the sound of the microphone and the sound of the orchestra are played through a single speaker, resulting in a lack of localization and sense of presence.

〔発明の目的〕[Purpose of the invention]

本発明の目的はこのような音質での不満をなくし、より
臨場感のある音を再生できるカラオケシステムを提供す
ることにある。An object of the present invention is to eliminate such dissatisfaction with sound quality and provide a karaoke system that can reproduce sound with a more realistic feeling.

〔発明の概要〕[Summary of the invention]

本発明になるカラオケシステムは、オーケストラ、ボー
カルの音をコントロールアンプ部で中域を直接音と間接
音とに２チャンネル化し、１台のスピーカシステムでそ
れぞれの音を再生することにより中域の臨場感をワイド
感覚にしたカラオケシステムである。The karaoke system of the present invention converts orchestral and vocal sounds into two channels in the midrange into direct sound and indirect sound using a control amplifier section, and reproduces each sound using one speaker system, thereby creating a realistic midrange sound. This is a karaoke system with a wide feel.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第２図により説明する。第２
図は本発明のカラオケシステムの回路ブロック図を示す
。１はテープ等の外部入力端子で、２はその入力端子か
らの信号を受けるだめのバッファである。テープ等の外
部信号は２バツフアを通過してマイク信号と３でミキシ
ングされる。マイクは１５マイク入力端子から入力され
丁６マイクアンプで増幅された後１７マイク音量調整に
より任意のレベルに調整されその信号は一部１８エコー
回路によりエフェクトされた信号に変換された信号と１
９でミキシングされる。An embodiment of the present invention will be described below with reference to FIG. Second
The figure shows a circuit block diagram of the karaoke system of the present invention. 1 is an external input terminal such as a tape, and 2 is a buffer for receiving a signal from the input terminal. An external signal such as a tape passes through two buffers and is mixed with a microphone signal by three. The microphone is input from the microphone input terminal 15, amplified by the microphone amplifier 6, and then adjusted to an arbitrary level by adjusting the volume of the microphone 17. The signal is partially converted into an effected signal by the echo circuit 18.
Mixed at 9.

このマイク信号は先の６でテープ等の信号とミキシング
される。この信号を直接音の信号としＪ　　　　　２チ
ャンネルの４増幅器にて増幅される。又、一部その信号
は９バンドバスフイ・ルター、１０遅延素子、を介して
１１音量調整にて任意にレベル調整し、１２増幅器を通
過し、その信号の一方は直接音と同相になるように１４
バツフアと介して直接音と５でミキシングされる。又、
一方の信号は直接音と逆相になるように２５バツフアを
介して直接音と５でミキシングされる。これ等により間
接音は直接音に対して同相、逆相で２系統の信号に変換
されろ主音量調整により任意にレベル調整され７メイン
アンプを介してスピーカシステム２４より音として再生
される。２４スピーカシステムは低音用スピーカ２０．
中音用スピーカ２１．高音用スピーカ２２．で直接音と
、それと同相の間接音を再生し、直接音と、それと逆相
の間接音は２６中音用スピーカで再生される。This microphone signal is mixed with the signal from the tape, etc. in step 6 above. This signal is made into a direct sound signal and is amplified by 4 amplifiers with 2 channels. In addition, part of the signal is passed through a 9-band bass filter, 10 delay elements, 11 volume adjustment, arbitrarily level adjusted, 12 amplifier, and one of the signals is 14 so that it is in phase with the direct sound.
It is mixed with the direct sound through the buffer. or,
One signal is mixed with the direct sound by 5 through 25 buffers so that it is in reverse phase with the direct sound. As a result, the indirect sound is converted into two systems of signals, one in phase and the other in phase with respect to the direct sound.The level is arbitrarily adjusted by the main volume adjustment, and the indirect sound is reproduced as sound from the speaker system 24 via the seven main amplifiers. 24 speaker system has 20 bass speakers.
Midrange speaker 21. High-pitched speaker 22. The direct sound and the indirect sound that is in phase with it are reproduced, and the direct sound and the indirect sound that is in the opposite phase are reproduced by the 26 medium frequency speakers.

なお、２１中音用スピーカの再生周波数帯域は９バンド
パスフイルターと同じ周波数特性とするものである。ま
た、１ろスイッチは間接音を切るものである。Note that the reproduction frequency band of the 21 medium frequency speaker has the same frequency characteristics as that of the 9 band pass filter. Also, the 1-ro switch turns off indirect sound.

〔発明の効果」 オえ□、６カ、オケ７７ヶ、いよゎ。、ヶえ　　　ヴの
モノーラルカラオケに比べて臨場感の効果が多大になる
ばかりでなく、ステレオカラオケの場合２台のスピーカ
システムを必要とするが本発明のカラオケシステムでは
１台のスピーカシステムで音質効果を上げることができ
、かつシステムの置き場所もとらない等多大な効果があ
る。[Effects of the invention] Oh, 6, 77, okay. Not only does it provide a greater sense of presence than the monaural karaoke of Gaebu, but stereo karaoke requires two speaker systems, but the karaoke system of the present invention achieves sound quality effects with just one speaker system. It has great effects, such as being able to increase the speed of the system and saving space for the system.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のモノーラルカラオケブロック図、第２図
は本発明になるモノーラルカラオケシステムブロック図
である。 矢印２６は直接音の信号。 矢印２７は直接音と同相の間接音信号。 矢印２８は直接音と逆相の間接音信号。FIG. 1 is a block diagram of a conventional monaural karaoke system, and FIG. 2 is a block diagram of a monaural karaoke system according to the present invention. Arrow 26 is a direct sound signal. Arrow 27 is an indirect sound signal that is in phase with the direct sound. Arrow 28 indicates an indirect sound signal that has a phase opposite to that of the direct sound.

Claims (1)

【特許請求の範囲】[Claims] （１）カラオケシステムの主要操作部を受けもつアンプ
部に従来のモノーラル再生方式のプリメインアンプと同
様の入力端子を構成し、かつマイクミキシング、エコー
等のエフェクターを構成し、プリアンプ部は直接音再生
用と、それと同じ信号を遅延し、フェーズシフトした間
接音再生用の２チャンネルを有し、それぞれパワーアン
プに接続し、又、このアンプに接続するスピーカシステ
ムは直接音を再生する低音用のスピーカ、高音用のスピ
ーカと、直接音とそれと同相の間接音及び直接音とそれ
と逆相の間接音用の中音用スピーカからなる構成のスピ
ーカシステムにし、このシステムによりオーケストラ、
ボーカルの中域をワイドな感覚で再生することを特徴と
するモノーラルのカラオケシステム。(1) The amplifier section, which handles the main operation part of the karaoke system, has an input terminal similar to that of a conventional monaural playback integrated amplifier, and also includes effectors such as microphone mixing and echo, and the preamp section plays direct sound. The same signal is delayed and phase-shifted into two channels for indirect sound reproduction, each of which is connected to a power amplifier, and the speaker system connected to this amplifier is a bass speaker that reproduces direct sound. , a speaker system consisting of a high-pitched speaker, a medium-pitched speaker for direct sound and indirect sound in phase with it, and direct sound and indirect sound in phase opposite to it, and with this system, an orchestra,
A monaural karaoke system that reproduces the midrange of vocals with a wide feel.