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Karaoke device and karaoke system

A technology of karaoke and signal, applied in the direction of sensor parts, sensors, electrical components, etc., can solve the problem of user's movement restriction

Active Publication Date: 2021-06-01
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the actions of the user are restricted.

Method used

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  • Karaoke device and karaoke system
  • Karaoke device and karaoke system
  • Karaoke device and karaoke system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0020] Karaoke system 100 according to this embodiment is used in vehicle C. As shown in FIG. figure 1 It is a plan view of a vehicle C equipped with the karaoke system 100 according to the first embodiment of the present invention, figure 2 is a side view of vehicle C.

[0021] In the compartment R of the vehicle C, in addition to the karaoke system 100, four seats 51 to 54 arranged in a rectangular shape; a ceiling 6; a right front door 71; a left front door 72; a right rear door 73; back door74. The seat 51 is a driver's seat, the seat 52 is a passenger's seat, the seat 53 is a rear right seat, and the seat 54 is a rear left seat. Each of the seats 51 to 54 is made of cloth or leather, and has sound-absorbing properties. The seats 51 to 54 face a common direction.

[0022] The karaoke system 100 is comprised including the microphone 11, the 1st speaker 21, the 2nd speaker 22, the 3rd speaker 23, and the 4th speaker 24.

[0023] The microphone 11 has a sound pickup uni...

no. 2 Embodiment approach ＞

[0050] Next, the karaoke system 200 which concerns on 2nd Embodiment is demonstrated. Figure 5 The electric structure of the karaoke system 200 which concerns on 2nd Embodiment is shown. The karaoke system 200 supplies the first signal Dv1 to the synthesizing unit 362, and the phase inversion unit 34 is provided between the synthesizing unit 362 and the DAC 372, except for this point. Figure 3A The karaoke system 100 of the first embodiment described is configured in the same manner. Since the phase inverting unit 34 is provided at a subsequent stage of the combining unit 362, the phase of the signal obtained by combining the first signal Dv1 and the second music signal Ds2 is reversed.

[0051] exist Image 6 Here, the phases of the sounds emitted from the first to fourth speakers 21 to 24 in the karaoke system 200 of the second embodiment will be described. In this example, the inverted sound of the singing component included in the first music signal Ds1 and the second...

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Abstract

The karaoke device and the karaoke system of the present invention reduce howling. The karaoke device (30) has: a microphone (11), which converts the sound picked up into an audio signal and outputs it; 21) The estimated signal (E) corresponding to the transfer characteristic of the feedback transfer system up to the microphone (11) is used to generate a first signal (Dv1), and a second signal ( Dv2); and a signal processing section (30B), which synthesizes the first signal (Dv1) and the first music signal (Ds1) to generate the first output signal (out1), and combines the second signal (Dv2) and the second music signal The signals ( Ds2 ) are combined to generate a second output signal ( out2 ).

Description

technical field [0001] The invention relates to a karaoke device and a karaoke system. Background technique [0002] In recent years, in-vehicle karaoke entertainment has begun, and various technologies related to in-vehicle karaoke systems have been developed. In an in-vehicle karaoke system, in order to reduce howling noise, for example, a technology has been developed in which a bone conduction unit is installed on a car seat (see Citation 1), which is adapted to each seat of the car. A technique for installing a directional speaker (see Cited Document 2) and the like. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2005-242057 [0004] Patent Document 2: Japanese Patent No. 4999497 [0005] However, when a bone conduction unit or a directional speaker is used, the overall structure of the karaoke system becomes large and complicated. In particular, when using a bone conduction unit, it is necessary to place a microphone near the user's mouth, and the user n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2420/03
Inventor 辻信昭河野则昭
Owner YAMAHA CORP