CN207340166U - A kind of frequency dividing circuit and music player - Google Patents
A kind of frequency dividing circuit and music player Download PDFInfo
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- CN207340166U CN207340166U CN201720794973.6U CN201720794973U CN207340166U CN 207340166 U CN207340166 U CN 207340166U CN 201720794973 U CN201720794973 U CN 201720794973U CN 207340166 U CN207340166 U CN 207340166U
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Abstract
The utility model embodiment is related to audio play-back technology field, is specifically related to a kind of frequency dividing circuit and music player.The circuit includes：First node, low-pass filter, bass high-pass filter, keynote high-pass filter, the first balanced device and the second balanced device；The input terminal connection first node of low-pass filter, the input terminal of the output terminal connection bass high-pass filter of low-pass filter, the output terminal of bass high-pass filter connect the input terminal of the first balanced device；The input terminal connection first node of keynote high-pass filter, the output terminal of keynote high-pass filter connect the input terminal of the second balanced device；First node is used for input audio signal, and the signal that low-pass filter and bass high-pass filter pass through is bass signal, and the signal that keynote high-pass filter passes through is midrange signals and high pitched signal.The embodiment can make the audio quality higher exported after frequency dividing.
Description
【Technical field】
The utility model embodiment is related to audio play-back technology field, is specifically related to a kind of frequency dividing circuit and music is broadcast
Put device.
【Background technology】
Bass frequencies refer to the sound that frequency is 20Hz-120Hz frequency ranges, and middle pitch frequency refers to that frequency is 160Hz-1280Hz
The sound of frequency range, treble frequency refer to that frequency is 16KHz-20KHz.In order to improve the quality of tonequality, use and divide in correlation technique
Frequency device separates the sound of high, medium and low audio section.
However, tonequality of the high, normal, basic cent from after is bad in correlation technique, it is impossible to preferably meets the needs of users.
【The content of the invention】
The utility model embodiment mainly solving the technical problems that provide a kind of frequency dividing circuit and music player,
The audio of different frequency range can preferably be isolated.
In order to solve the above technical problems, the technical solution that the utility model uses is：A kind of frequency dividing circuit is provided, is wrapped
Include：First node, low-pass filter, bass high-pass filter, keynote high-pass filter, the first balanced device and second are balanced
Device；
The input terminal of the low-pass filter connects the first node, described in the output terminal connection of the low-pass filter
The input terminal of bass high-pass filter, the output terminal of the bass high-pass filter connect the input terminal of first balanced device；
The input terminal of the keynote high-pass filter connects the first node, the output terminal of the keynote high-pass filter
Connect the input terminal of second balanced device；
The first node is used for input audio signal, the signal that low-pass filter and the bass high-pass filter passes through
For bass signal, the signal that the keynote high-pass filter passes through is midrange signals and high pitched signal.
In certain embodiments, the first power amplifier and the second power amplifier are further included,
The input terminal of first power amplifier connects the output terminal of first balanced device；
The input terminal of second power amplifier connects the output terminal of second balanced device.
In certain embodiments, bandpass filter, high-pass filter, the first level adjuster and adder are further included,
The input terminal of the bandpass filter connects the output terminal of the keynote high-pass filter, the bandpass filter
Output terminal connects the input terminal of first level adjuster, and the output terminal of first level adjuster connects the adder
First input end, the output terminal of the adder connects the input terminal of second balanced device；
The input terminal of the high-pass filter connects the output terminal of the keynote high-pass filter, the high-pass filter
Output terminal connects the second input terminal of the adder.
In certain embodiments, second electrical level adjuster is further included,
The input terminal of the second electrical level adjuster connects the output terminal of the high-pass filter, the second electrical level adjustment
The output terminal of device connects the second input terminal of the adder.
In order to solve the above technical problems, another technical solution that the utility model uses is：A kind of music is provided
Device, described device include：
Housing；
Woofer, keynote loudspeaker, audio input port on the housing is set；And
The frequency dividing circuit as described above being arranged in the housing；
Wherein, woofer and the keynote loudspeaker connect the frequency dividing circuit, the audio input port connection respectively
The first node.
In certain embodiments, the top of the housing is equipped with the first opening, and the side wall of the housing is opened equipped with second
Mouthful；
The keynote loudspeaker are fixed on second opening；
Elevating mechanism is equipped with the housing；
The woofer is fixed on the elevating mechanism, and the elevating mechanism is used for lifting or declines the bass loudspeaker
, so that the woofer is pierced by from the described first opening, or taken in from the described first opening in the housing.
In certain embodiments, the elevating mechanism is hydraulic cylinder.
In certain embodiments, the elevating mechanism is cylinder.
In certain embodiments, driving motor and controlling switch are additionally provided with the housing,
The driving motor is fixed in the housing, and the hydraulic cylinder or the cylinder are fixed on the driving
In the rotation axis of motor；
The controlling switch is fixed on the housing outer surface, and the controlling switch connects the driving motor.
The beneficial effect of the utility model embodiment is：It is different from the situation of the prior art, the utility model embodiment party
Formula carries out lifting or decay by increasing by two balanced devices to the audio after separation, so as to export with better quality effect
Audio.
【Brief description of the drawings】
Fig. 1 is a kind of electrical block diagram for frequency dividing circuit that the utility model embodiment provides；
Fig. 2 is the electrical block diagram for another frequency dividing circuit that the utility model embodiment provides；
Fig. 3 is the electrical block diagram for another frequency dividing circuit that the utility model embodiment provides；
Fig. 4 is a kind of structure diagram for music player that the utility model embodiment provides.
【Embodiment】
For the ease of understanding the utility model, with reference to the accompanying drawings and detailed description, the utility model is carried out more
Detailed description.It should be noted that when element is expressed " being fixed on " another element, it can be directly in another element
Above or therebetween there may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can
To be directly to another element or there may be one or more elements placed in the middle therebetween.This specification is used
Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, the skill of technical and scientific term all used in this specification with belonging to the utility model
The normally understood implication of technical staff in art field is identical.In the art used in the description of the utility model in this specification
Language is intended merely to the purpose of description specific embodiment, is not intended to limitation the utility model.Art used in this specification
Language "and/or" includes the arbitrary and all combination of one or more relevant Listed Items.
Referring to Fig. 1, Fig. 1 provides a kind of frequency dividing circuit, which includes：First node 201, low-pass filter
202nd, bass high-pass filter 203, keynote high-pass filter 204, the first balanced device 205 and the second balanced device 206.
Wherein, the input terminal of the low-pass filter 202 connects the first node 201, the low-pass filter 202
Output terminal connects the input terminal of the bass high-pass filter 203, described in the output terminal connection of the bass high-pass filter 203
The input terminal of first balanced device 205.The input terminal of the keynote high-pass filter 204 connects the first node 201, the master
The output terminal of pitch bandpass filter 204 connects the input terminal of second balanced device 206.
Wherein, the first node 201 is used for input audio signal, and audio signal passes through low-pass filter 202 and keynote
After high-pass filter 204 filters respectively, the audio separation of the audio and keynote frequency range of bass frequency range, and pass through bass high pass
Wave filter 203 carries out bass signal reinforcement processing, and is carried out respectively by the first balanced device 205 and the second balanced device 206
Corresponding lifting or decay, finally export two-way audio.
Wherein, the signal that the low-pass filter 202 and bass high-pass filter 203 pass through is bass signal, the master
The signal that pitch bandpass filter 204 passes through is midrange signals and high pitched signal.
Wherein, above-mentioned low-pass filter 202, the first balanced device 205 and the second balanced device 206 can use 2 rank IIR
Wave filter is designed.Above-mentioned bass high-pass filter 203 and keynote high-pass filter 204 can use 4 rank iir filters into
Row design.Using iir filter, the standard that can simulate ptototype filter designs, it is readily appreciated that, and low order can be used real
It is existing, it can run at high speed, realize the separation of bass and keynote faster.In addition, the cutoff frequency of each wave filter and balanced device,
The Parameter adjustables such as Q values, amplitude.It should be noted that in practical applications, other kinds of wave filter can also be used.
In certain embodiments, referring to Fig. 2, above-mentioned frequency dividing circuit further includes the first power amplifier 207 and the second work(
Rate amplifier 208, the input terminal of first power amplifier 207 connect the output terminal of first balanced device 205；Described
The input terminal of two power amplifiers 208 connects the output terminal of second balanced device 206.Pass through the first power amplifier and second
Power amplifier carries out power amplification to the audio signal after separation respectively, to export customer satisfaction system audio.
In certain embodiments, referring to Fig. 3, above-mentioned frequency dividing circuit further includes bandpass filter 209, high-pass filter
210th, the first level adjuster 211 and adder 212.
Wherein, the input terminal of the bandpass filter 209 connects the output terminal of the keynote high-pass filter 204, described
The output terminal of bandpass filter 209 connects the input terminal of first level adjuster 211, first level adjuster 211
Output terminal connect the first input end of the adder 212, the output terminal of the adder 212 connects second balanced device
206 input terminal；The input terminal of the high-pass filter 210 connects the output terminal of the keynote high-pass filter 204, the height
The output terminal of bandpass filter 210 connects the second input terminal of the adder 212.
Further, the frequency dividing circuit further includes second electrical level adjuster 213.The second electrical level adjuster 213
Input terminal connects the output terminal of the high-pass filter 210, and the output terminal of the second electrical level adjuster 213 connects the addition
Second input terminal of device 212.
In the present embodiment, by bandpass filter and high-pass filter by the high pitched signal in keynote signal and middle message
Number separated, and individually enhancing or attenuation processing carry out midrange signals by the first level adjuster, by the
Two level adjusters carry out high pitched signal individually enhancing or attenuation processing, finally by adder by the high pitch after adjustment
It is added with middle pitch, the second balanced device is inputted after addition, and exported after the amplification of the second power amplifier.Therefore, the reality
The mode of applying can separate the middle pitch in keynote and high pitch, and be strengthened respectively or attenuation operations, improve most
The play quality of the audio exported eventually.
Referring to Fig. 4, the utility model embodiment provides a kind of music player, which includes：
Point described in housing (not shown), woofer 302, keynote loudspeaker 303, audio input port 304 and above-described embodiment
Frequency circuit 305.
Wherein, the woofer 302, keynote loudspeaker 303, audio input port 304 are set on the housing；It is described
Frequency dividing circuit 305 is arranged in the housing.The woofer 302 and keynote loudspeaker 303 connect the frequency dividing circuit respectively
305, the audio input port 304 connects the first node, that is, connects the frequency dividing circuit 305.
The audio input port 304 is used for the input of audio, the external equipments such as USB flash disk can be inserted into the audio output
Mouth 304.
The woofer 302 is used to export audio bass, and the keynote loudspeaker 303 are used to export maintone audio.
On the basis of above-described embodiment, the woofer 302 can connect first balanced device, the woofer
302 can also connect first power amplifier.The keynote loudspeaker 303 can connect second balanced device, the master
Sound loudspeaker 303 can also connect second power amplifier.
In the present embodiment, the top of the housing is equipped with the first opening (not shown), and the side wall of the housing is equipped with
Second opening (not shown), wherein, the keynote loudspeaker 303 are fixed on second opening.
Further, it is equipped with elevating mechanism (not shown) in the housing.Wherein, the woofer 302 is fixed on institute
State on elevating mechanism, the elevating mechanism is used for lifting or declines the woofer 302 so that the woofer 302 from
First opening is pierced by, or is taken in from the described first opening in the housing, and the woofer 302 is opened from described first
The height that mouth is pierced by is adjustable, and the woofer 302 can be taken in the housing completely.
In the present embodiment, by lifting the woofer, on the one hand, the receipts of the music player can be facilitated
Receive, and appearance is more attractive；On the other hand, bass sounding phase can be adjusted according to specific application scenarios, Neng Goubang
Help lifting tonequality.
It should be noted that in other embodiments, the woofer 302 can also be fixed, by the keynote loudspeaker
303 be arranged to liftable, so as to adjust the sounding phase of keynote.
Further, the elevating mechanism can be hydraulic cylinder, either cylinder or other driving devices.When the liter
When descending mechanism is hydraulic cylinder or cylinder, the driving motor is fixed in the housing, and the hydraulic cylinder or described
Cylinder is fixed in the rotation axis of the driving motor.Herein, by driving motor to drive the hydraulic cylinder or the gas
Cylinder waves, and in the woofer after the described first opening is pierced by, can adjust the direction of woofer as needed, so that
Help lifts the tonequality of the audio of output.
Further, controlling switch (not shown) is additionally provided with the housing, the controlling switch is fixed on the housing
Outer surface, and the controlling switch connects the driving motor.Therefore, user can adjust the lifting by controlling switch
The angle that mechanism is waved, that is, adjust the direction of the woofer, so as to control the sounding phase of bass, help lifts output
The tonequality of audio.
In certain embodiments, WIFI module or bluetooth module, the WIFI are additionally provided with the music player
Module or bluetooth module connection driving device.Therefore, user can by connect WIFI either bluetooth by mobile phone or its
His mobile terminal controls the lifting of elevating mechanism in the music player or waves, so as to facilitate the operation of user.
The utility model embodiment provides a kind of music player, which can be by audio-source
Bass and keynote are separated, and high pitch in keynote and middle pitch can individually be increased or attenuation operations, lifting
The play quality of the audio of output.In addition, export basses and keynote by two loudspeaker, and the output of one of loudspeaker
The orientation of audio is adjustable, can help to lift the tonequality of the audio of output.Moreover, loudspeaker can be housed to music when inapplicable
In the housing of playing device, carry user more convenient, and the appearance of music player is more attractive.
It should be noted that the preferable implementation of the utility model is given in the specification and its attached drawing of the utility model
Mode, still, the utility model can be realized by many different forms, however it is not limited to the described implementation of this specification
Mode, these embodiments are not as the extra limitation to the utility model content, there is provided the purpose of these embodiments is to make
To the understanding more thorough and comprehensive of the disclosure of the utility model.Also, above-mentioned each technical characteristic continues to be mutually combined, formed
The various embodiments not being enumerated above, are accordingly to be regarded as the scope of the utility model specification record；Further, to this area
For those of ordinary skill, it can according to the above description be improved or be converted, and all these modifications and variations should all belong to
The protection domain of the appended claims for the utility model.
Claims (10)
- A kind of 1. frequency dividing circuit, it is characterised in that including：First node, low-pass filter, bass high-pass filter, keynote are high Bandpass filter, the first balanced device and the second balanced device；The input terminal of the low-pass filter connects the first node, and the output terminal of the low-pass filter connects the bass The input terminal of high-pass filter, the output terminal of the bass high-pass filter connect the input terminal of first balanced device；The input terminal of the keynote high-pass filter connects the first node, the output terminal connection of the keynote high-pass filter The input terminal of second balanced device；The first node is used for input audio signal, and the signal that low-pass filter and the bass high-pass filter passes through is low Sound signal, the signal that the keynote high-pass filter passes through are midrange signals and high pitched signal.
- 2. frequency dividing circuit according to claim 1, it is characterised in that further include the first power amplifier and the second power is put Big device,The input terminal of first power amplifier connects the output terminal of first balanced device；The input terminal of second power amplifier connects the output terminal of second balanced device.
- 3. frequency dividing circuit according to claim 2, it is characterised in that further include bandpass filter, high-pass filter, first Level adjuster and adder,The input terminal of the bandpass filter connects the output terminal of the keynote high-pass filter, the output of the bandpass filter End connects the input terminal of first level adjuster, and the output terminal of first level adjuster connects the of the adder One input terminal, the output terminal of the adder connect the input terminal of second balanced device；The input terminal of the high-pass filter connects the output terminal of the keynote high-pass filter, the output of the high-pass filter End connects the second input terminal of the adder.
- 4. frequency dividing circuit according to claim 3, it is characterised in that second electrical level adjuster is further included,The input terminal of the second electrical level adjuster connects the output terminal of the high-pass filter, the second electrical level adjuster Output terminal connects the second input terminal of the adder.
- 5. a kind of music player, it is characterised in that described device includes：Housing；Woofer, keynote loudspeaker, audio input port on the housing is set；AndBe arranged in the housing such as Claims 1-4 any one of them frequency dividing circuit；Wherein, woofer and the keynote loudspeaker connect the frequency dividing circuit respectively, described in the audio input port connection First node.
- 6. music player according to claim 5, it is characterised in that opened equipped with first at the top of the housing Mouthful, the side wall of the housing is equipped with the second opening；The keynote loudspeaker are fixed on second opening；Elevating mechanism is equipped with the housing；The woofer is fixed on the elevating mechanism, and the elevating mechanism is used for lifting or declines the woofer, with The woofer is pierced by from the described first opening, or taken in from the described first opening in the housing.
- 7. music player according to claim 6, it is characterised in that the elevating mechanism is hydraulic cylinder.
- 8. music player according to claim 6, it is characterised in that the elevating mechanism is cylinder.
- 9. music player according to claim 7, it is characterised in that driving motor and control are additionally provided with the housing System switch,The driving motor is fixed in the housing, and the hydraulic cylinder is fixed in the rotation axis of the driving motor；The controlling switch is fixed on the housing outer surface, and the controlling switch connects the driving motor.
- 10. music player according to claim 8, it is characterised in that be additionally provided with the housing driving motor and Controlling switch,The driving motor is fixed in the housing, and the cylinder is fixed in the rotation axis of the driving motor；The controlling switch is fixed on the housing outer surface, and the controlling switch connects the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794973.6U CN207340166U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency dividing circuit and music player |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794973.6U CN207340166U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency dividing circuit and music player |
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| Publication Number | Publication Date |
|---|---|
| CN207340166U true CN207340166U (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720794973.6U Active CN207340166U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency dividing circuit and music player |
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| CN (1) | CN207340166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152576A (en) * | 2019-06-27 | 2020-12-29 | 名世电子企业股份有限公司 | Natural sound field sound dividing system of vacuum tube and transistor amplifier |
-
2017
- 2017-06-30 CN CN201720794973.6U patent/CN207340166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152576A (en) * | 2019-06-27 | 2020-12-29 | 名世电子企业股份有限公司 | Natural sound field sound dividing system of vacuum tube and transistor amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220322 Address after: Rooms 1306-1309, 13 / F, 19 science Avenue West, Hong Kong Science Park, Shatin, New Territories, China Patentee after: BUILDWIN INTERNATIONAL (ZHUHAI) LTD. Address before: 3 / F (axis 7-13), stereo science and technology building, 184 Bailian Road, Jida, Zhuhai, Guangdong 519000 Patentee before: BUILDWIN INTERNATIONAL (ZHUHAI) Ltd. |
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| TR01 | Transfer of patent right |