CN108389568B - Karaoke system capable of automatically eliminating voice - Google Patents
Karaoke system capable of automatically eliminating voice Download PDFInfo
- Publication number
- CN108389568B CN108389568B CN201810426965.5A CN201810426965A CN108389568B CN 108389568 B CN108389568 B CN 108389568B CN 201810426965 A CN201810426965 A CN 201810426965A CN 108389568 B CN108389568 B CN 108389568B
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- 238000000034 method Methods 0.000 claims abstract description 12
- 230000005236 sound signal Effects 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 5
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
The invention relates to a Karaoke system capable of automatically eliminating human voice; the system comprises a radio unit, a control unit, a network unit, an image playing unit and a sound playing unit, wherein the radio unit and the network unit can be respectively connected with the control unit in a manner of transmitting audio signals, the network unit provides a program source and is connected with the image player, and the control unit is electrically connected with the sound playing unit through an AV amplifier. The beneficial effects of the invention are as follows: by combining the frequency control method and the phase method, the voice can be eliminated without operation intervention, after the microphone picks up the sound wave of singing by the user, the voice can be automatically eliminated, when the sound wave of singing by the user is not picked up, the original voice is automatically opened, the voice source is not limited, the standard MTV voice source can be used, the voice source can also be used when the common audio and video are played, the voice eliminating function can be realized, the application range is wide, and the practicability is strong.
Description
Technical Field
The invention relates to a karaoke system, in particular to an automatic voice-eliminating karaoke system capable of automatically starting a noise elimination function.
Background
The existing karaoke system generally needs to turn on the voice eliminating mode manually, when karaoke does not need accompaniment, the original voice is turned off by using a manual switch switching mode, when accompaniment is needed, voice accompaniment is turned back on manually, music in the current MTV of karaoke is processed specially, music song information is processed independently in left and right double channels respectively, background music is reserved in both channels, voice is stored in only one of the channels, when voice is eliminated, voice is eliminated only by comparing the audio of the left channel with the audio of the right channel, different parts are filtered, in addition, the voice eliminating function can be realized only by playing special songs meeting MTV standards in the existing karaoke system, and the existing karaoke system is inconvenient to use and has a certain limitation.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a karaoke system, in particular an automatic voice-eliminating karaoke system capable of automatically turning on a noise elimination function.
The technical scheme adopted by the invention is as follows: the karaoke system capable of automatically eliminating the human voice comprises a radio unit, a control unit, a network unit, an image playing unit and a sound playing unit, wherein the radio unit and the network unit are respectively connected with the control unit in a manner of transmitting audio signals, the network unit provides a program source and is connected with the image playing unit, and the control unit is electrically connected with the sound playing unit through an AV amplifier.
The sound receiving unit is provided with a sound pick-up, an amplifier and a limiter which are electrically connected with each other, the control unit is provided with a DSP noise reducer, and the sound receiving unit is electrically connected with the DSP noise reducer through the limiter and transmits the audio recorded by the sound pick-up to the control unit.
Wherein, the radio reception unit is provided with a switch button and a mode switching key.
The using method comprises the following steps:
(1) Firstly, selecting a program source through a network unit, transmitting image information of the program source to an image playing unit by the network unit, and transmitting audio information to a control unit by the network unit;
(2) Then, the sound pickup unit is opened and switched to an automatic mode, and in the mode, after the sound waves are picked up by the sound pickup unit, the sound waves are processed by the amplifier and the limiter and then transmitted to the control unit;
(3) The control unit compares the signal sent by the sound receiving unit with the preset value in the memory by the DSP, and when the amplitude of the signal input by the sound receiving unit reaches the preset value, an automatic sound eliminating judging mechanism is started.
In the step (2), the mode switching of the radio unit comprises two modes of manual switching and automatic switching, wherein the manual switching is realized by pressing a mode switching key, and the automatic switching is performed by automatically recognizing voice by the radio unit after the user sounds.
The beneficial effects of the invention are as follows: the invention aims to provide the karaoke system capable of automatically eliminating the voice, which can eliminate the voice without operation intervention by combining a frequency control method and a phase method, realize automatic voice elimination after a microphone picks up the sound wave of singing by a user, automatically open the original voice without limitation on the sound source when the microphone does not pick up the sound wave of singing by the user, can use a standard MTV sound source, can also use the voice source when playing common audio and video, can realize the voice elimination function, and has wide application range and strong practicability.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the invention for eliminating human voice.
The drawings are marked with the following description:
1-a radio unit; 2-a control unit; 3-network elements; 4-an image playing unit; 5-a sound playing unit; a 6-AV amplifier; 7-a sound pick-up; an 8-amplifier; 9-limiter; a 10-DSP noise reducer; 11-a switch button; 12-mode switch key.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings:
as shown in fig. 1-2, a karaoke system capable of automatically eliminating human voice comprises a radio unit 1, a control unit 2, a network unit 3, an image playing unit 4 and a sound playing unit 5, wherein the radio unit 1 and the network unit 3 are respectively connected with the control unit 2 in a manner of transmitting audio signals, the network unit 3 provides a program source and is connected with the image playing unit 4, and the control unit 2 is electrically connected with the sound playing unit 5 through an AV amplifier 6.
The sound receiving unit 1 is provided with a sound pickup 7, an amplifier 8 and a limiter 9 which are electrically connected with each other, the control unit 2 is provided with a DSP noise reducer 10, and the sound receiving unit 1 is electrically connected with the DSP noise reducer 10 through the limiter 9 to transmit the audio recorded by the sound pickup 7 to the control unit 2.
Wherein the radio reception unit 1 is provided with a switch button 11 and a mode switching key 12.
The using method comprises the following steps:
(1) Firstly, selecting a program source through a network unit 3, transmitting image information of the program source to an image playing unit 4 by the network unit 3, and transmitting audio information to a control unit 2 by the network unit 3;
(2) Then, the sound pickup unit 1 is turned on and switched to an automatic mode in which the sound pickup 7 of the sound pickup unit 1 picks up sound waves, processes the sound waves through the amplifier 8 and the limiter 9, and transmits the sound waves to the control unit 2;
(3) The control unit 2 compares the signal sent by the radio unit 1 with the preset value in the memory by the DSP, and when the signal amplitude input by the radio unit 1 reaches the preset value, an automatic voice-eliminating judging mechanism is started.
In step (2), the mode switching of the radio unit 1 includes two modes of manual switching and automatic switching, wherein the manual switching is realized by pressing the mode switching key 12, and the automatic switching is performed by automatically recognizing the voice by the radio unit 1 after the user sounds.
The automatic judgment mechanism of the voice is specifically as follows: firstly, comparing the sounds of the left and right channels of the karaoke currently played, and if the sound sources of the left and right channels are the same, using a frequency control method and simultaneously eliminating the voice of the human voice contained in the left and right channels; if the sound sources of the left and right channels are different, a phase method is started to eliminate the human voice.
The sound source after eliminating the human voice and the sound picked up by the sound receiving unit 1 are mixed after being processed by the DSP of the control unit 2, and then the mixed sound is transmitted to the AV amplifier 6, and the AV amplifier 6 drives the sound playing unit 5 to make sound.
When the DSP is compared with the operation, and the sound amplitude picked up by the sound pickup unit 1 is lower than the preset value in the memory, the sound eliminating function is automatically turned off.
In the automatic mode, the radio unit 1 can switch off the automatic sound eliminating mode by pressing the mode switching key 12 again.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, and those skilled in the art may make various changes and modifications within the scope of the technical solution of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical matters of the present invention are still within the scope of the technical solution of the present invention.
Claims (4)
1. A karaoke system automatically eliminating a human voice, characterized by: the system comprises a radio unit, a control unit, a network unit, an image playing unit and a sound playing unit, wherein the radio unit and the network unit are respectively connected with the control unit in a manner of transmitting audio signals, the network unit provides a program source and is connected with the image playing unit, and the control unit is electrically connected with the sound playing unit through an AV amplifier;
the using method comprises the following steps:
(1) Firstly, selecting a program source through a network unit, transmitting image information of the program source to an image playing unit by the network unit, and transmitting audio information to a control unit by the network unit;
(2) Then, the sound pickup unit is opened and switched to an automatic mode, and in the mode, after the sound waves are picked up by the sound pickup unit, the sound waves are processed by the amplifier and the limiter and then transmitted to the control unit;
(3) The control unit compares the signal sent by the sound receiving unit with the preset value in the memory by the DSP, and when the amplitude of the signal input by the sound receiving unit reaches the preset value, an automatic sound eliminating judging mechanism is started, wherein the sound eliminating automatic judging mechanism specifically comprises: firstly, comparing the sounds of the left and right channels of the karaoke currently played, and if the sound sources of the left and right channels are the same, using a frequency control method and simultaneously eliminating the voice of the human voice contained in the left and right channels; if the sound sources of the left and right channels are different, a phase method is started to eliminate the human voice.
2. A karaoke system automatically suppressing human voice as set forth in claim 1 wherein: the sound receiving unit is provided with a pickup, an amplifier and a limiter which are electrically connected with each other, the control unit is provided with a DSP noise reducer, and the sound receiving unit is electrically connected with the DSP noise reducer through the limiter and transmits the audio recorded by the pickup to the control unit.
3. A karaoke system automatically suppressing human voice as set forth in claim 2 wherein: the radio unit is provided with a switch button and a mode switching key.
4. A karaoke system automatically suppressing human voice as set forth in claim 1 wherein: in the step (2), the mode switching of the radio unit comprises two modes of manual switching and automatic switching, wherein the manual switching is realized by pressing a mode switching key, and the automatic switching is realized by automatically recognizing voice to switch after the user sounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426965.5A CN108389568B (en) | 2018-05-07 | 2018-05-07 | Karaoke system capable of automatically eliminating voice |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426965.5A CN108389568B (en) | 2018-05-07 | 2018-05-07 | Karaoke system capable of automatically eliminating voice |
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| Publication Number | Publication Date |
|---|---|
| CN108389568A CN108389568A (en) | 2018-08-10 |
| CN108389568B true CN108389568B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810426965.5A Active CN108389568B (en) | 2018-05-07 | 2018-05-07 | Karaoke system capable of automatically eliminating voice |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI751484B (en) * | 2020-02-04 | 2022-01-01 | 原相科技股份有限公司 | Method and electronic device for adjusting accompaniment music |
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| JP2000047677A (en) * | 1998-07-31 | 2000-02-18 | Yamaha Corp | Karaoke device |
| JP3075350U (en) * | 1999-08-02 | 2001-02-16 | 広東愛浪数字技術有限公司 | Automatic on-off device for karaoke equipment |
| CN1941073A (en) * | 2005-09-26 | 2007-04-04 | 三星电子株式会社 | Apparatus and method of canceling vocal component in an audio signal |
| CN101770772A (en) * | 2008-12-30 | 2010-07-07 | 杭州来同科技有限公司 | Embedded Internet kara OK entertainment device and method for controlling sound and images thereof |
| CN102103853A (en) * | 2009-12-18 | 2011-06-22 | 康佳集团股份有限公司 | Method for weakening voice in songs |
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| CN202871289U (en) * | 2012-09-07 | 2013-04-10 | 深圳市爱码芯科技有限公司 | Portable karaoke device based on MP3 format |
| CN203839030U (en) * | 2014-05-23 | 2014-09-17 | 北京视点科技有限公司 | Real-time interactive system between karaoke private rooms |
| CN208141816U (en) * | 2018-05-07 | 2018-11-23 | 深圳乐华高科实业有限公司 | A kind of karaoke OK system for the voice that disappears automatically |
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2018
- 2018-05-07 CN CN201810426965.5A patent/CN108389568B/en active Active
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| US4953212A (en) * | 1988-11-29 | 1990-08-28 | Pioneer Electronic Corporation | Auto voice changing apparatus |
| JP2000047677A (en) * | 1998-07-31 | 2000-02-18 | Yamaha Corp | Karaoke device |
| JP3075350U (en) * | 1999-08-02 | 2001-02-16 | 広東愛浪数字技術有限公司 | Automatic on-off device for karaoke equipment |
| CN1941073A (en) * | 2005-09-26 | 2007-04-04 | 三星电子株式会社 | Apparatus and method of canceling vocal component in an audio signal |
| CN101770772A (en) * | 2008-12-30 | 2010-07-07 | 杭州来同科技有限公司 | Embedded Internet kara OK entertainment device and method for controlling sound and images thereof |
| CN102103853A (en) * | 2009-12-18 | 2011-06-22 | 康佳集团股份有限公司 | Method for weakening voice in songs |
| CN102254548A (en) * | 2010-05-17 | 2011-11-23 | 上海海纳通讯有限公司 | Karaoke system for mobile terminal |
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| CN108389568A (en) | 2018-08-10 |
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