CN203407002U - Acoustic bass extension sound box - Google Patents

Acoustic bass extension sound box Download PDF

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Publication number
CN203407002U
CN203407002U CN201320495854.2U CN201320495854U CN203407002U CN 203407002 U CN203407002 U CN 203407002U CN 201320495854 U CN201320495854 U CN 201320495854U CN 203407002 U CN203407002 U CN 203407002U
Authority
CN
China
Prior art keywords
bass
audio
sound box
audio amplifier
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320495854.2U
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Chinese (zh)
Inventor
张玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Hua Weixu Electronics Co. Ltd.
Original Assignee
SHENZHEN HUAWEIXU ELECTRONIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN HUAWEIXU ELECTRONIC CO Ltd filed Critical SHENZHEN HUAWEIXU ELECTRONIC CO Ltd
Priority to CN201320495854.2U priority Critical patent/CN203407002U/en
Application granted granted Critical
Publication of CN203407002U publication Critical patent/CN203407002U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of sound box equipment and particularly discloses an acoustic bass extension sound box capable of improving the supper bass effect of an existing general sound box. The acoustic bass extension sound box comprises a sound box main body provided with a power supply input terminal and an audio input terminal. The audio input terminal of the sound box main body is connected with a supper bass processing circuit. The supper bass processing circuit is composed of a DC power supply input terminal, a supper bass processing chip, an audio input interface and an audio output interface connected with the audio input terminal of the sound box main body. The power supply input terminal of the supper bass processing circuit is connected with a voltage stabilizing circuit. The DC power supply input terminal is also connected with the voltage stabilizing circuit. The DC power inputted through the DC power supply input terminal is subjected to the voltage stabilizing circuit to supply power to the supper bass processing circuit. According to the technical scheme of the utility model, when the acoustic bass extension sound box is used for playing audio files, compared with the audio playing effect of a general sound box, the audio playing effect of the acoustic bass extension sound box at low, medium and high frequencies is more harmonious and the supper bass loudness of the acoustic bass extension sound box is greatly improved.

Description

A kind of bass extension audio amplifier
Technical field:
The utility model relates to sound-box device technical field, refers in particular to a kind of bass extension audio amplifier that promotes the supper bass effect of existing common audio amplifier.
Background technology:
Audio amplifier refers to audio signal to be transformed to a kind of equipment of sound, and popular saying just refer in audio amplifier main frame casing or subwoofer casing and carry power amplifier, and audio signal is amplified after processing and gone out sound by the playback of audio amplifier own.
Fast development along with mobile communication equipments such as mobile phones, the equipment such as mobile phone self have possessed audio frequency and have play playing function, but the audio system quality of mobile phone can be limited by the device-restrictive of self, lack the response of low frequency, and low-frequency phase should often there is powerful appeal to user's mood.Mobile Phone Consumption person has seen LF-response as and has weighed the important indicator of handset audio quality now.Yet the physical schemes of bass boost or other audio frequency processing scheme effects are also not fully up to expectations at present.
On the other hand, MaxxBass technology is a kind of bass extension technology, and it adopts psychologic acoustics to process, and realizes in this way bass extension, have with low cost, make simple, few on the impact of alt section.Compare with physical schemes or other audio frequency processing schemes of bass boost, effect is more obvious.MaxxBass is the designed a kind of psycho-acoustic bass extension technology of Israel Waves company, with solving in loudspeaker design stubborn problem the most: do not have large loud speaker and power amplifier just can not reproduce enough low bass frequencies.MaxxBass has utilized the fundamental frequency Loss being proven to make the audience can hear the bass of maximum 1.5 octaves below loud speaker physical restriction.It does not violate physics law, has just used the psychological illusion being equal to actual sound that it is sounded like.The low frequency replaying effect that kind method produces is thus penetrating and unambiguous, plentiful and not thin.And the requirement of speaker size, tank-volumes and horn material is significantly reduced, only need more small-bore loudspeaker unit just can hear bass more overcast, that have more glamour.Its operation principle is: the characteristic of musical instrument is the homophonic product that it produces.Partials are class frequencys, since one times of partials, are fundamental tone, and fundamental tone has determined the tone of note.Interesting feature of ear/brain system is: even the fundamental tone of one group of partials disappearance, we still can correctly hear its tone, especially when the partials of low frequency exist.Pipe organ producer utilizes this principle, with only sending homophonic airduct, produces extremely low note.By increasing the weight of the partials naturally in music signal, MaxxBass technology is exactly to utilize above-mentioned principle to promote the sensation of fundamental tone tone, realizes supper bass effect.
Current MaxxBass bass extension technology is applied in the equipment such as television set.But it is not also applied in the equipment such as little audio amplifier, mobile phone, this is also too low side of the speaker of voice box size that comes from these equipment, tank-volumes, horn material, cannot realize bass extension.The inventor, through constantly experiment, is applied to MaxxBass bass extension technology in the equipment such as little audio amplifier, mobile phone, to promote the supper bass effect of these equipment.
Utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of bass extension audio amplifier that promotes the supper bass effect of the equipment such as existing little audio amplifier, mobile phone is provided.
In order to solve the problems of the technologies described above, the utility model has adopted following technical proposals: this bass extension audio amplifier comprises: audio amplifier main body, this audio amplifier main body has power input and audio input end, audio input end in described audio amplifier main body is connected with a supper bass treatment circuit, this supper bass treatment circuit comprises DC supply input, supper bass process chip, audio input interface and the audio output interface being connected with the audio input end of audio amplifier main body, this supper bass treatment circuit power input is connected with a voltage stabilizing circuit, DC supply input connects voltage stabilizing circuit, the direct current of being inputted by DC supply input is processed electricity for supper bass and is powered after voltage stabilizing circuit.
Furthermore, in technique scheme, in described supper bass treatment circuit, supper bass process chip adopts MX3000DS chip.
Furthermore, in technique scheme, described voltage stabilizing circuit adopts voltage-stabiliser tube.
Furthermore, in technique scheme, the voltage of the direct current of described DC supply input input is 9V, inputs to the voltage of supper bass treatment circuit DC supply input for being 3V.
Furthermore, in technique scheme, described audio amplifier main body is mobile phone speaker or small-power audio amplifier.
Adopt after technique scheme, the utility model has following beneficial effect compared with prior art:
1, through the utility model is tested, the frequency response that surpasses 200Hz is completely smooth, and wherein supper bass treatment circuit is had no effect to these frequencies, and most of audio signals are not changed.
2, the small size lifting of added at 100Hz place+6dB.Near loudspeaker cut-off frequency+6dB promote compensated a little less than loudspeaker cut-off frequency place first-6dB frequency response decay.For the loudspeaker decay of first-6dB, the supper bass treatment circuit in the utility model can compensate by strengthening simply fundamental frequency, because loudspeaker only have very little loss in efficiency near cut-off frequency.
3, only to affect Fc be 100Hz and following frequency to the supper bass treatment circuit in the utility model, and its impact is near or below the low-frequency sound signal of physics loudspeaker cut-off place, and the main body of audio signal is not changed.
4, sense of hearing, the utility model can reduce the supper bass in original audio frequency, and the supper bass loudness of melody has certain lifting, and alt part does not have significant change in sense of hearing.
In sum, during the utility model audio plays, the more general audio amplifier result of broadcast of its low, middle and high frequency is more coordinated, and supper bass loudness has larger lifting.
Accompanying drawing explanation:
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the circuit diagram of the utility model voltage stabilizing circuit;
Fig. 3 is the circuit diagram of the utility model supper bass process chip.
Embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
See shown in Fig. 1,2,3, the utility model comprises an audio amplifier main body 1, and this audio amplifier main body 1 has power input 11 and audio input end 12.What the present embodiment middle pitch box main body 1 adopted is the audio amplifier of rambler R18T model, and its operating voltage is 220V.
The audio input end 12 of described audio amplifier main body 1 is connected with a supper bass treatment circuit 2, this supper bass treatment circuit 2 comprises DC supply input 21, supper bass process chip 20, audio input interface 22 and the audio output interface 23 being connected with the audio input end 12 of audio amplifier main body 1, the power input 24 of this supper bass treatment circuit 2 is connected with a voltage stabilizing circuit 3, DC supply input 4 connects voltage stabilizing circuits 3, the direct current of being inputted by DC supply input 4 bass processing circuit 2 power supplies of attaching most importance to after voltage stabilizing circuit 3.
In above-mentioned supper bass treatment circuit 2, supper bass process chip employing MaxxBass model is MX3000DS chip.Wire rod in audio transmission adopts 2.0 general tone frequency channel wires.
In order to simplify circuit, it is L78L33 voltage-stabiliser tube that described voltage stabilizing circuit 3 adopts model.
The voltage of the direct current of described DC supply input 4 inputs is 9V, can pass through battery supplied.Input to the voltage of supper bass treatment circuit 2 DC supply inputs 21 for being 3V.
During the utility model work, the audio output interface of audio player (for example mobile phone, MP3, MP4) is connected with the audio input interface 22 of supper bass treatment circuit 2, after audio player is opened, audio frequency is after the supper bass process chip 20 in supper bass treatment circuit 2 is processed, export to again in audio amplifier main body 1, after the power amplifier in audio amplifier main body 1 amplifies, output.The audio frequency low, middle and high frequency of output is more coordinated compared with audio amplifier result of broadcast originally, and supper bass loudness has larger lifting.
In supper bass process chip 20 in the utility model, be reserved with switch leads 201, can switch be set by this switch leads 201, user can select to need supper bass to process by this switch, or does not need supper bass to process.
Audio amplifier main body 1 in the utility model can be not only small-power audio amplifier, and it also can be integrated in mobile phone etc. has in the equipment of audio playing function, thus the further audio frequency result of broadcast of lifting mobile communication apparatus.
Certainly, the foregoing is only specific embodiment of the utility model, be not to limit the utility model practical range, all according to equivalence variation or modification that described in the utility model claim, structure, feature and principle are done, all should be included in the utility model claim.

Claims (5)

1. a bass extension audio amplifier, it comprises: audio amplifier main body (1), this audio amplifier main body (1) has power input (11) and audio input end (12), it is characterized in that: the audio input end (12) in described audio amplifier main body (1) is connected with a supper bass treatment circuit (2), this supper bass treatment circuit (2) comprises DC supply input (21), supper bass process chip (20), audio input interface (22) and the audio output interface (23) being connected with the audio input end (12) of audio amplifier main body (1), the power input (24) of this supper bass treatment circuit (2) is connected with a voltage stabilizing circuit (3), DC supply input (4) connects voltage stabilizing circuit (3), by the direct current of DC supply input (4) the input bass processing circuit (2) of attaching most importance to through voltage stabilizing circuit (3) after, powered.
2. a kind of bass extension audio amplifier according to claim 1, is characterized in that: in described supper bass treatment circuit (2), supper bass process chip adopts MX3000DS chip.
3. a kind of bass extension audio amplifier according to claim 1, is characterized in that: described voltage stabilizing circuit (3) adopts voltage-stabiliser tube.
4. a kind of bass extension audio amplifier according to claim 1, is characterized in that: the voltage of the direct current of described DC supply input (4) input is 9V, inputs to the voltage of supper bass treatment circuit (2) DC supply input (21) for being 3V.
5. a kind of bass extension audio amplifier according to claim 1, is characterized in that: described audio amplifier main body (1) is mobile phone speaker or small-power audio amplifier.
CN201320495854.2U 2013-08-10 2013-08-10 Acoustic bass extension sound box Expired - Fee Related CN203407002U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320495854.2U CN203407002U (en) 2013-08-10 2013-08-10 Acoustic bass extension sound box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320495854.2U CN203407002U (en) 2013-08-10 2013-08-10 Acoustic bass extension sound box

Publications (1)

Publication Number Publication Date
CN203407002U true CN203407002U (en) 2014-01-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320495854.2U Expired - Fee Related CN203407002U (en) 2013-08-10 2013-08-10 Acoustic bass extension sound box

Country Status (1)

Country Link
CN (1) CN203407002U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105812986A (en) * 2016-05-09 2016-07-27 中山奥凯华泰电子有限公司 Sound box and processing method for mixing multiple channels to two wireless channels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105812986A (en) * 2016-05-09 2016-07-27 中山奥凯华泰电子有限公司 Sound box and processing method for mixing multiple channels to two wireless channels

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20160629

Address after: 408100, 3 building, A building, B District, 6 Phoenix Road, Fuling District, Xincheng District, Chongqing

Patentee after: Chongqing Hua Weixu Electronics Co. Ltd.

Address before: 518100 Guangdong city of Shenzhen province Baoan District Dalang street, Dalang South Road Baolong Industrial Zone Weixu Hua Industrial Park

Patentee before: Shenzhen Huaweixu Electronic Co., Ltd.

Effective date of registration: 20160629

Address after: 408100, 3 building, A building, B District, 6 Phoenix Road, Fuling District, Xincheng District, Chongqing

Patentee after: Chongqing Hua Weixu Electronics Co. Ltd.

Address before: 518100 Guangdong city of Shenzhen province Baoan District Dalang street, Dalang South Road Baolong Industrial Zone Weixu Hua Industrial Park

Patentee before: Shenzhen Huaweixu Electronic Co., Ltd.

C41 Transfer of patent application or patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140122

Termination date: 20190810

CF01 Termination of patent right due to non-payment of annual fee