CN201682599U - Earphone equalizer - Google Patents
Earphone equalizer Download PDFInfo
- Publication number
- CN201682599U CN201682599U CN2010201424253U CN201020142425U CN201682599U CN 201682599 U CN201682599 U CN 201682599U CN 2010201424253 U CN2010201424253 U CN 2010201424253U CN 201020142425 U CN201020142425 U CN 201020142425U CN 201682599 U CN201682599 U CN 201682599U
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- China
- Prior art keywords
- band pass
- pass filter
- out terminal
- earphone
- equalizer
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Abstract
The utility model provides an earphone equalizer, including a housing, a circuit board provided in the housing, and at least one input terminal and output terminal, wherein at least a set of filters are provided between the input terminal and output terminal, the filter has an adjusting device, and a modulation piece for modulating the adjusting device is provided on the outer wall of the housing. The earphone equalizer provided by the utility model can modulate the output voice mode of the portable music player and can facilitate the operation use of the users.
Description
Technical field
The utility model relates to a kind of equalizer, especially a kind of earphone equalizer that is used with earphone.
Background technology
Along with the development of Digital Electronic Technique, people are extensive use of various digital electronic products in entertainment life, comprising portable music player, as CD Player, MP3, MP4 etc.When using music player, use wired earphone to listen to the music mostly.
Because the amplitude of each frequency range of audio signal of existing portable music player is fixed, promptly the output mode of audio signal is fixed, and the user is the original audio signal of portable music player output from the sound of earphone uppick.
But the user often has the music playing mode of oneself liking, and the portable music player of existing part can't be regulated the amplitude of each frequency range of audio signal according to user's hobby, makes the music pattern dullness of earphone output.For example, some users like the bigger music of stress proportion, and as the music of rock and roll mode playback, and other users like the bigger music of high pitch proportion, and existing part portable music player or earphone can't be regulated according to user's hobby.
In addition, though existing part portable music player has the function of regulating music frequency range amplitude, but portable music player is placed in the inner bag of trouser pocket or clothes often, if the user all needed portable music player is operated when regulating play mode at every turn, also bring great inconvenience to the user.
Summary of the invention
Main purpose of the present utility model provides the earphone equalizer of a plurality of frequency range amplitudes of a kind of scalable audio signal.
Another purpose of the present utility model provides the earphone equalizer that a kind of user of being convenient to regulates the audio signal play mode of earphone output.
For realizing above-mentioned main purpose, the earphone equalizer that the utility model provides includes housing, be provided with circuit board in the housing, and the earphone equalizer is provided with at least one input terminal and lead-out terminal, at least be connected with one group of filter between input terminal and the lead-out terminal, filter has an adjusting device, and the outer wall of housing is provided with the regulating part that is used to regulate adjusting device.
By such scheme as seen, because the filter of earphone equalizer only allows the audio signal of some characteristic frequency to pass through, and adjusting device is set on filter, the user can be according to the hobby of oneself, regulate the filter output amplitude, thereby regulate the audio signal output amplitude of different frequency range, like this, the proportion of each different frequency range sound changes, and then arrives the effect of regulating the output sound pattern.
A preferred scheme is that this filter is two groups or two groups of above band pass filters of connection parallel with one another.Like this, equalizer can be regulated the frequency range more than two sections or two sections, and the adjustable frequency range of user is wider, and the output sound pattern is more various, caters to more multi-user's consumption requirement.
Further scheme is, lead-out terminal comprises L channel lead-out terminal and R channel lead-out terminal, and every group of band pass filter comprises two corresponding with L channel lead-out terminal and R channel lead-out terminal respectively band pass filters.
This shows that the band pass filter of each group has respectively and two band pass filters that lead-out terminal is corresponding, guarantee to the amplitude of each frequency band audio signal of each lead-out terminal output identical, thereby guarantee harmony to the earphone output sound.
Further scheme is, each regulating part connects the adjusting device of two band pass filters of corresponding one group of band pass filter with it.Like this, can regulate the output amplitude of two band pass filters of same group of band pass filter when the user promotes regulating part simultaneously, can guarantee that same group of band pass filter output amplitude regulate simultaneously.
Description of drawings
Fig. 1 is the partial structurtes figure of the utility model first embodiment.
Fig. 2 is the partial structurtes figure at the utility model first another visual angle of embodiment.
Fig. 3 is the electrical schematic diagram of the utility model first embodiment.
Fig. 4 is the circuit diagram of the utility model first embodiment.
Fig. 5 is the circuit diagram of the utility model second embodiment.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
First embodiment.
Referring to Fig. 1 and Fig. 2, the earphone equalizer has a housing 6, housing 6 has outer wall 60,61,62,63 and 64, outer wall 61 peripheral hardwares have outward extending connecting line 65, the overhanging end of connecting line 65 is connected with the attachment plug as input terminal (invisible among Fig. 1), attachment plug can be inserted in the portable player, to the audio signal of earphone equalizer input portable player output.
The outer wall 62 relative with outer wall 61 is provided with the gang socket 78 as lead-out terminal, and the attachment plug of earphone can be inserted in the gang socket 78, to realize that the earphone equalizer is to the earphone output audio signal.Outer wall 60 is provided with a switch 67 and volume adjustment knob 68.And, below outer wall 64, be provided with a holder 69, be convenient to the user earphone equalizer is clamped on clothes or the handbag.
Be provided with a circuit board (invisible among the figure) in the earphone equalizer housing 6, circuit board is provided with circuit such as band pass filter, and the electrical schematic diagram of earphone equalizer as shown in Figure 3.
Equalizer is provided with the sub-IN of audio signal input end, receives the audio signal from portable music player.Audio signal is transferred into respectively in three band pass filters that are connected in parallel 11,12 and 13 through after the capacitor C 1, three band pass filters 11,12,13 correspond respectively to the frequency range of 50 hertz, 1k hertz and 10k hertz, and each band pass filter 11,12,13 all is provided with adjusting device.
Similarly, band pass filter 12 is the band pass filter of 1k hertz frequency range, it is made up of resistance R 5, R6, R7 and capacitor C 3, C4, wherein resistance R 6 is a swept resistance, can change the amplitude of band pass filter 12 output audio signals by the resistance of regulating swept resistance R6, the amplitude of its lifting or decay also is in 10 decibels.The audio signal of band pass filter 11 outputs also is to export amplifier A1 to.
After the amplification of audio signal through amplifier A1 of three band pass filter 11,12,13 outputs, export lead-out terminal OUT to, OUT exports loudspeaker to by lead-out terminal.Because therefore the equal scalable of amplitude of each band pass filter 11,12,13 output audio signal can realize the lifting or the decay of each frequency band audio signal amplitude.Like this, the user can be according to the hobby of oneself, sound is arranged to the pattern of oneself hobby, as rock and roll pattern, jazz's pattern etc.
Referring to Fig. 4, during the present embodiment practical application, the earphone equalizer is provided with two audio signal output end, be respectively L channel lead-out terminal L-OUT and R channel lead-out terminal R-OUT, equalizer will be provided with three groups of band pass filters, every group of band pass filter has two band pass filters, for example first group of band pass filter is made up of band pass filter 21 and 31, two band pass filters 21,31 are the band pass filter of 50 hertz of frequency ranges, and corresponding with R channel lead-out terminal R-OUT with L channel lead-out terminal L-OUT respectively.
Similarly, second group of band pass filter is made up of band pass filter 22,32, and its corresponding frequency range is a 1k hertz frequency range, and corresponding with R channel lead-out terminal R-OUT with L channel lead-out terminal L-OUT respectively.The 3rd group of band pass filter is made up of band pass filter 23,33, and corresponding frequency range is the 10k hertz, and is also corresponding with R channel lead-out terminal R-OUT with L channel lead-out terminal L-OUT respectively.
Band pass filter 21,22,23 outputs corresponding with L channel lead-out terminal L-OUT are connected to triode Q1, and audio signal exports amplifying circuit 25 to after amplifying through triode Q1.Band pass filter 31,32,33 outputs corresponding with R channel lead-out terminal R-OUT are connected to triode Q2, and audio signal exports amplifying circuit 25 to after amplifying through triode Q2.
Amplifying circuit 25 outputs connect the left and right sound channels lead-out terminal L-OUT and the R-OUT of equalizer, thereby to the earphone output audio signal.
In the present embodiment, also be provided with the power circuit 26 to amplifying circuit 25 power supplies, power circuit 26 receives 1.5 volts direct voltage, and the direct current that forms 3 volts through boosting is to amplifying circuit 25 power supplies.Power circuit 26 is provided with a LED 1 as indicator light, and the positive pole of LED 1 is connected with DC power supply, minus earth.
Review Fig. 1, the outer wall 63 of housing 6 is provided with three 71,73,75, three slide blocks 71,73,75 of slide block as regulating part and is separately positioned in three chutes 72,74,76, and can reciprocatingly slide in chute 72,74,76.Three slide blocks 71,73,75 are respectively applied for the swept resistance that promotes three groups of band pass filters and slide.For example, slide block 71 promotes the swept resistance of first group of band pass filter 21,31 simultaneously, guarantee two band pass filters, 21,31 adjusted in concert of same frequency range, thereby guarantee the audio signal equilibrium of L channel lead-out terminal L-OUT and R channel lead-out terminal R-OUT output.
Similarly, slide block 73 is regulated the swept resistance of second group of band pass filter 22,32 simultaneously, and slide block 75 promotes the swept resistance of the 3rd group of band pass filter 23,33 simultaneously.
Audio signal from portable music player is input to equalizer by L channel input terminal L-IN and R channel input terminal R-IN, respectively through behind three groups of band pass filters 21,31,22,32,23,33, amplify back input amplifying circuit 25 through triode Q1 and Q2 again, export L channel lead-out terminal L-OUT and R channel lead-out terminal R-OUT to after amplifying once more.
Owing to be provided with the earphone equalizer between earphone and the portable music player, especially on the portable music player that does not have balancer function, use the earphone equalizer, the user can be provided with the output amplitude of a plurality of band pass filters 21,31,22,32,23,33 according to the hobby of oneself, can change the pattern of sound.
And the earphone equalizer can be clamped on the pocket top or collar of clothes, and it is convenient more than regulating portable music player that the user regulates the earphone equalizer, also helps manipulating of user.
Second embodiment.
The earphone equalizer of present embodiment also has a housing, and the outer wall of housing is provided with gang socket, and attachment plug is connected with circuit board in the housing by connecting line.Be provided with a circuit board in the housing, circuit board is provided with seven groups of band pass filters, and the circuit diagram of present embodiment as shown in Figure 5.
The earphone equalizer of present embodiment is seven sections equalizers, promptly have seven groups of band pass filters, first group of band pass filter 41,51 frequency range is 40 hertz, corresponding with the L channel loudspeaker respectively with the R channel loudspeaker, second group of band pass filter 42,52 frequency range is 100 hertz, the 3rd group of band pass filter 43,53 frequency range is 250 hertz, the 4th group of band pass filter 44,54 frequency range is 630 hertz, the 5th group of band pass filter 45,55 frequency range is the 1.6k hertz, the 6th group of band pass filter 46,56 frequency range is the 4k hertz, and the 7th group of band pass filter 47,57 frequency range is the 10k hertz.
The band pass filter of each group include a band pass filter corresponding with L channel lead-out terminal L-OUT and with the corresponding band pass filter of R channel lead-out terminal R-OUT, and each band pass filter is equipped with the swept resistance as adjusting device.The user can change the output audio signal amplitude of band pass filter by regulating the resistance of swept resistance, thereby realizes changing the pattern of sound.
Identical with first embodiment, the output of the band pass filter 41,42,43,44,45,46,47 corresponding with L channel lead-out terminal L-OUT all is connected to triode Q3, and the output of the band pass filter 51,52,53,54,55,56,57 corresponding with R channel lead-out terminal R-OUT all is connected to triode Q4.Audio signal exports amplifying circuit 48 to after amplifying through triode Q3, Q4, and the output of amplifying circuit 48 is connected with L channel lead-out terminal L-OUT and R channel lead-out terminal R-OUT.
Equalizer also is provided with the power circuit 49 to amplifying circuit 48 power supplies, and power circuit 49 is provided with LED 2 as indicator light, and the positive pole of LED 2 connects DC power supply, minus earth.
Certainly, also be provided with seven slide blocks as regulating part on the housing of present embodiment, each slide block is used for promoting simultaneously the swept resistance of one group of band pass filter, thereby regulates the pattern of sound.
Because present embodiment is provided with seven groups of band pass filters, user's adjustable range is broad more, and sound can be configured to more multi-mode, satisfies user's demand.
Certainly, the foregoing description only is the utility model preferred implementation, during actual the use, more change can also be arranged, for example, every group of band pass filter only is provided with a band pass filter, and band pass filter sound channel lead-out terminal output audio signal to the left and right simultaneously; Perhaps use alternative slide blocks such as knob as regulating part; Or, use low pass filter to substitute the minimum band pass filter of frequency range, use high pass filter to substitute the highest band pass filter of frequency range; Again or, the attachment plug that is connected with portable music player is set directly on the outer wall of housing, and does not use connecting line connection etc., these change does not influence enforcement of the present utility model.
It is emphasized that at last; the utility model is not limited to above-mentioned execution mode, promotes or the variations such as change of attenuation amplitude also should be included in the protection range of the utility model claim as band pass filter quantity changes, change, amplifying circuit and the power circuit of every group of band pass filter corresponding frequency band constitute change, each frequency band audio signal amplitude.
Claims (7)
1. the earphone equalizer is characterized in that: comprise
Housing is provided with circuit board in the described housing;
Input terminal and lead-out terminal;
At least be connected one group of filter between described input terminal and lead-out terminal, described filter has an adjusting device;
Also be provided with the regulating part that is used to regulate described adjusting device on the outer wall of described housing.
2. earphone equalizer according to claim 1 is characterized in that:
Described filter is two groups or two groups of above band pass filters parallel with one another.
3. earphone equalizer according to claim 2 is characterized in that:
The quantity of described regulating part equates with the group number of described band pass filter, and described regulating part is corresponding one by one with described one group of band pass filter.
4. according to claim 2 or 3 described earphone equalizers, it is characterized in that:
Described lead-out terminal comprises L channel lead-out terminal and R channel lead-out terminal;
Every group of described band pass filter comprises two corresponding with described L channel lead-out terminal and described R channel lead-out terminal respectively band pass filters.
5. earphone equalizer according to claim 4 is characterized in that:
Described each regulating part connects the adjusting device of two band pass filters of corresponding one group of band pass filter with it.
6. according to each described earphone equalizer of claim 1 to 3, it is characterized in that:
Also be provided with a holder on the outer wall of described housing.
7. according to each described earphone equalizer of claim 1 to 3, it is characterized in that:
Described adjusting device is a swept resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424253U CN201682599U (en) | 2010-03-26 | 2010-03-26 | Earphone equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424253U CN201682599U (en) | 2010-03-26 | 2010-03-26 | Earphone equalizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682599U true CN201682599U (en) | 2010-12-22 |
Family
ID=43347632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201424253U Expired - Lifetime CN201682599U (en) | 2010-03-26 | 2010-03-26 | Earphone equalizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932706A (en) * | 2012-10-22 | 2013-02-13 | 歌尔声学股份有限公司 | Headset with two built-in loudspeakers and signal processing method of headset |
-
2010
- 2010-03-26 CN CN2010201424253U patent/CN201682599U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932706A (en) * | 2012-10-22 | 2013-02-13 | 歌尔声学股份有限公司 | Headset with two built-in loudspeakers and signal processing method of headset |
| CN102932706B (en) * | 2012-10-22 | 2016-05-04 | 歌尔声学股份有限公司 | A kind of earphone of built-in double horn and its signal processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |