CN101977345A - KTV (Karaok Television) compartment sound box system - Google Patents
KTV (Karaok Television) compartment sound box system Download PDFInfo
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- CN101977345A CN101977345A CN2010102958765A CN201010295876A CN101977345A CN 101977345 A CN101977345 A CN 101977345A CN 2010102958765 A CN2010102958765 A CN 2010102958765A CN 201010295876 A CN201010295876 A CN 201010295876A CN 101977345 A CN101977345 A CN 101977345A
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Abstract
The invention discloses a KTV (Karaok Television) compartment sound box system belonging to the technical field of electroacoustics. The audio signal output end of an equalizer is connected with an electronic frequency-halving circuit, the electronic frequency-halving circuit divides an accompanying music audio signal modulated by the equalizer into a low-frequency sound signal and a medium-high-frequency sound signal, amplifies the low-frequency sound signal through an amplification circuit, inputs the amplified signal into a bass sound box and inputs the medium-high-frequency sound signal into a sound mixing circuit, which is used for mixing the medium-high-frequency sound signal and a human voice audio signal modulated by the equalizer, amplifying the mixed audio signal through the amplification circuit and inputting the amplified signal to an full-frequency-band sound box. The invention has the advantages that sound box units are hardly damaged even under the continuous operation condition at a high-power and high-sound-pressure level, and the whole sound field does not bring a distorted, vague, husky or hoarse feeling under the condition of high-power operation.
Description
Technical field
The invention belongs to the electroacoustic techniques field, particularly a kind of karaoke chamber sound box system.
Background technology
At present, the unit spoilage of karaoke chamber audio amplifier is very high, and main cause is that the full range signal public address that music is mixed with voice all born by the audio amplifier of a pair of ten cun or eight cun unit.In noisy business environment, the audio amplifier in the room must reach certain loudness again, could satisfy and listen the requirement of singing.The continuous operation conditions of this high-power high sound pressure level has just caused the high bass unit that comprises the top quality brand audio amplifier to damage just.The coordination of visual aspects to decorative model should be looked after in the installation site of a pair of audio amplifier, also will take the sound picture unification of audio amplifier and tv screen into account.Here benly be, encirclement and relaxation in order can to obtain to sing the time, singer and main sound box must have suitable " reverberation radius " distance, this for about difficult two audio amplifiers that turn round and look at, required more than just more being difficult to satisfy.
Singly be to solve high sound pressure in the room, high-power, problem that the unit does not damage, can adopt a pair of performance level public address with grating before bugle audio amplifier and the cover high-power after grade configuration, just can satisfy above requirement.Not only price is moderate, and the first stage of singing in the short time also can be felt " very light ".But, above collocation mode is not used in a large number and is budded out into popularity for many years, its reason just is, when in the private room that occupies the majority with the following area of square meter more than 30, using this equipment, most of K singers feel to sing after use and get up " not express one's emotion ", particularly that suitable medium-long range public address, aggressive acoustic pressure is made us the psychological feelings existence that opening dare not be sung.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of karaoke chamber sound box system based on electroacoustic techniques and room acoustics foundation, it can reach depresses loudly that playback is rich in level and bass undistorted, continuous shock is play and can not burnt out unit, the requirement that equipment manufacturing cost is low.
The present invention is achieved by the following measures:
Karaoke chamber of the present invention sound box system, comprise equalizer, microphone reverberation effect treatment circuit, vocal mix circuit, amplifying circuit and audio amplifier, equalizer is used to regulate the sound accompaniment music audio signal of left and right acoustic channels and people's sound audio signals of exporting from microphone, described audio amplifier comprises woofer and full range band audio amplifier, the audio signal output end of described equalizer is connected with the electronics frequency-halving circuit, sound accompaniment music audio signal after described electronics frequency-halving circuit is regulated equalizer is divided into two kinds of low-frequency sound signal and medium-high frequency voice signals, and the low-frequency sound signal is input to woofer after amplifying circuit amplifies, the medium-high frequency voice signal is input to vocal mix circuit; Described vocal mix circuit is used for the medium-high frequency voice signal and the people's sound audio signals after equalizer is regulated mixes and mixed audio signal is input to full range band audio amplifier after the amplifying circuit amplification.
In order to make frequency division more reasonable, the frequency division better effects if, above-mentioned electronics frequency-halving circuit will be divided into the low-frequency sound signal smaller or equal to the audio signal of 110HZ, will be divided into the medium-high frequency signal greater than the audio signal of 110HZ.
Above-mentioned full range band audio amplifier is four 8 cun unit audio amplifiers, makes the voice performance more outstanding.
For making indoor result of use better, be arranged on diverse location according to different house type audio amplifiers, above-mentioned four 8 cun unit audio amplifiers are hung on four jiaos at the top in square room.
In video screen was arranged on rectangle room on the long abutment wall, four 8 cun unit audio amplifiers hung over another long abutment wall top and laterally evenly distributed in alignment.
In video screen was arranged on rectangle room on the minor face wall, the video screen top each side hung 8 cun unit audio amplifiers, and two other 8 cun unit audio amplifiers are hung in two long abutment wall tops.
8 cun unit audio amplifier air line distances that the 8 cun unit audio amplifiers that above-mentioned video screen one side is hung and the long abutment wall top of homonymy are hung are 1～2m, and such distance meets the sound field characteristic in the room, better effects if more.
Above-mentioned woofer is one and is placed on ground two ten cun woofers that the bass performance is better.
Consider that from electroacoustical angle the resonance frequency of above-mentioned two ten cun woofers is 55HZ, better effects if.
The invention has the beneficial effects as follows: even the unit of this patent audio amplifier under the continuous operation conditions of high-power high sound pressure level is not fragile yet, the installation site of audio amplifier makes the singer obtain suitable " reverberation radius " distance easily, thereby produces encirclement and relaxation when singing.Under the high power operation condition, voice to sing effect still smooth full, the level of sound accompaniment music is as clear as crystal, strong low frequency is moving, whole sound field has no unclear, the muddy hoarse sense of distortion, singing demand and can access greatly satisfied when the singer sings.
Description of drawings
Fig. 1 is a workflow block diagram of the present invention.
Embodiment
Now be described further by embodiment in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of karaoke chamber of the present invention sound box system comprises being used for the sound accompaniment music audio signal of left and right acoustic channels and regulating microphone reverberation effect treatment circuit, electronics frequency-halving circuit, vocal mix circuit, amplifying circuit and the audio amplifier of volume and senior middle school's bass equalizing circuit, handler's sound audio signals from people's sound audio signals of microphone output respectively.
Audio amplifier comprises woofer and the full range band audio amplifier of arranging according to sound field characteristic in the private room, and full range band audio amplifier adopts four 8 cun unit audio amplifiers and woofer to adopt two ten cun woofers; The electronics frequency-halving circuit is used for the sound accompaniment music audio signal of the left and right acoustic channels after regulating through equalizer is divided into low-frequency sound signal and medium-high frequency voice signal; Wherein the audio signal smaller or equal to 110HZ is the low-frequency sound signal, will be the medium-high frequency signal greater than the audio signal of 110HZ.Give two ten cun woofer sound reproduction after the low frequency signal amplifying circuit amplification of low frequency signal through left and right acoustic channels.The medium-high frequency signal as the medium-high frequency signal of sound accompaniment music with give left and right acoustic channels mixing amplifying circuit after the voice reverb signal mixes by hybrid circuit and amplify, the audio signal after the amplification is given four 8 cun unit audio amplifiers sound reproductions.
The arrangement form of four 8 cun unit audio amplifiers is: 1. adopt four jiaos to hang in square room.2. in the rectangle room, if video screen on long abutment wall the time, four 8 cun unit audio amplifiers hang over another long abutment wall top and laterally evenly distributed in alignment; If video screen is on the minor face wall time, each side hang one on minor face wall top, video screen place, other two are hung in two long abutment wall tops, and 8 cun unit audio amplifier air line distances that the long abutment wall top of 8 cun unit audio amplifiers hanging of video screen one side and homonymy is hung are 1～2m.
Its operation principle is:
By adopting four audio amplifiers of above Active crossover technological means, owing to only play the above voice full range of 110HZ and the medium-high frequency signal of music sound accompaniment, its function has become broadcast medium-high frequency audio signal by playing the full range audio signal, the low frequency signal of 70% above power energy is born by woofer, so it bears the power ratio nominal power and is more than doubled, and the low frequency signal that needs stroke significantly could play, then directly, the special-purpose high-power bass unit of voice coil loudspeaker voice coil is finished greatly by long stroke, thick line.The resonance frequency of these two ten cun woofers is that 55HZ and part-frequency point 110HZ form an octave.Because efficient sound reproduction means are adopted in the design of casing aspect, place on ground in addition, and under the situation that does not improve the electric acoustic power input, the sound reproduction acoustic pressure can improve nearly 7 decibels, therefore, need not to bear the public address volume that big power can reach to be needed in the room.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection range of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (9)
1. karaoke chamber sound box system, comprise equalizer, microphone reverberation effect treatment circuit, vocal mix circuit, amplifying circuit and audio amplifier, equalizer is used to regulate the sound accompaniment music audio signal of left and right acoustic channels and people's sound audio signals of exporting from microphone, described audio amplifier comprises woofer and full range band audio amplifier, it is characterized in that: the audio signal output end of described equalizer is connected with the electronics frequency-halving circuit, sound accompaniment music audio signal after described electronics frequency-halving circuit is regulated equalizer is divided into two kinds of low-frequency sound signal and medium-high frequency voice signals, and the low-frequency sound signal is input to woofer after amplifying circuit amplifies, the medium-high frequency voice signal is input to vocal mix circuit; Described vocal mix circuit is used for the medium-high frequency voice signal and the people's sound audio signals after equalizer is regulated mixes and mixed audio signal is input to full range band audio amplifier after the amplifying circuit amplification.
2. according to the described karaoke chamber of claim 1 sound box system, it is characterized in that: described electronics frequency-halving circuit will be divided into the low-frequency sound signal smaller or equal to the audio signal of 110HZ, will be divided into the medium-high frequency signal greater than the audio signal of 110HZ.
3. according to the described karaoke chamber of claim 1 sound box system, it is characterized in that: described full range band audio amplifier is four 8 cun unit audio amplifiers.
4. according to claim 1 or 3 described karaoke chamber sound box systems, it is characterized in that: described four 8 cun unit audio amplifiers are hung on four jiaos at the top in square room.
5. according to claim 1 or 3 described karaoke chamber sound box systems, it is characterized in that: in video screen was arranged on rectangle room on the long abutment wall, four 8 cun unit audio amplifiers hung over another long abutment wall top and laterally evenly distributed in alignment.
6. according to claim 1 or 3 described karaoke chamber sound box systems, it is characterized in that: in video screen is arranged on rectangle room on the minor face wall, the video screen top each side hangs 8 cun unit audio amplifiers, and two other 8 cun unit audio amplifiers are hung in two long abutment wall tops.
7. according to the described karaoke chamber of claim 6 sound box system, it is characterized in that: 8 cun unit audio amplifier air line distances that the 8 cun unit audio amplifiers that described video screen one side is hung and the long abutment wall top of homonymy are hung are 1～2m.
8. according to the described karaoke chamber of claim 1 sound box system, it is characterized in that: described woofer is one and is placed on ground two ten cun woofers.
9. according to claim 1 or 8 described karaoke chamber sound box systems, it is characterized in that: the resonance frequency of described two ten cun woofers is 55HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102958765A CN101977345A (en) | 2010-09-29 | 2010-09-29 | KTV (Karaok Television) compartment sound box system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102958765A CN101977345A (en) | 2010-09-29 | 2010-09-29 | KTV (Karaok Television) compartment sound box system |
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| Publication Number | Publication Date |
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| CN101977345A true CN101977345A (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102958765A Pending CN101977345A (en) | 2010-09-29 | 2010-09-29 | KTV (Karaok Television) compartment sound box system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03280699A (en) * | 1990-03-28 | 1991-12-11 | Toshiba Corp | Sound field effect automatic controller |
| CN1248760A (en) * | 1998-09-22 | 2000-03-29 | 雅马哈株式会社 | Device for processing microphone signal of karaoke equipment |
| KR100669034B1 (en) * | 2005-05-20 | 2007-01-15 | 주식회사 엔터기술 | A digital audio player and the playing method thereof |
-
2010
- 2010-09-29 CN CN2010102958765A patent/CN101977345A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03280699A (en) * | 1990-03-28 | 1991-12-11 | Toshiba Corp | Sound field effect automatic controller |
| CN1248760A (en) * | 1998-09-22 | 2000-03-29 | 雅马哈株式会社 | Device for processing microphone signal of karaoke equipment |
| KR100669034B1 (en) * | 2005-05-20 | 2007-01-15 | 주식회사 엔터기술 | A digital audio player and the playing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周毅: "一套适合于35～80m~2的KTV音响系统", 《电声技术》 * |
| 广州声德电子有限公司: "K－D100前置数字处理器", 《电声技术》 * |
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Application publication date: 20110216 |