CN203523018U - Audio frequency connecting device - Google Patents
Audio frequency connecting device Download PDFInfo
- Publication number
- CN203523018U CN203523018U CN201320545954.1U CN201320545954U CN203523018U CN 203523018 U CN203523018 U CN 203523018U CN 201320545954 U CN201320545954 U CN 201320545954U CN 203523018 U CN203523018 U CN 203523018U
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- resistance
- electrically connected
- audio signal
- moving contact
- output port
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Abstract
The utility model provides an audio frequency connecting device comprising a first input port, a second input port, a first output port and a second output port. The audio frequency connecting device also comprises a first attenuation circuit outputting a first audio signal to the first output port after the first audio signal is attenuated, a second attenuation circuit outputting a second audio signal to the second output port after the second audio signal is attenuated, a first high-pass filter circuit outputting the first audio signal to the first output port after the first audio signal is subjected to a high-pass filtering process, a second high-pass filter circuit outputting the second audio signal to the second output port after the second audio signal is subjected to the high-pass filtering process, a first low-pass filter circuit outputting the first audio signal to the second output port after the first audio signal is subjected to a low-pass filtering process, and a second low-pass filter circuit outputting the second audio signal to the first output port after the second audio signal is subjected to the low-pass filtering process. The passive audio frequency connecting device is advantageous in that the connecting device can build a good sound field and is convenient to carry.
Description
Technical field
The utility model relates to Audio Signal Processing field, relates in particular to a kind of audio connector that can be to Audio Signal Processing.
Background technology
Present music CD disc is generally reset and records in order to offer audio amplifier, is about to the separately recording of L channel and R channel, and the audio signal of L channel is reset for left side audio amplifier, and the audio signal of R channel is reset for the right audio amplifier.When people listen audio amplifier playback time, because sound is the spatial at certain distance, so people's left ear is except hearing the sound sending from left side audio amplifier, also one hears that a part is from the sound sending of the right audio amplifier surely, auris dextra is except hearing the sound sending from the right audio amplifier, and also one hears the sound that send from audio amplifier on a part of left side surely.So just, can form normal free found field, make people experience the sense of reality and the telepresenc of sound simultaneously.
Yet, when people utilize the listen to the music playback time of CD of earphone, because the acoustic design of earphone is to need the cavity of a sealing to lower the Frequency Power Loss of music, when the audio signal of L channel is reset at the left side of earphone phonation unit, the audio signal of R channel is at the right of earphone phonation unit playback time, people's left ear can only be heard the sound of L channel, and auris dextra can only be heard the sound of R channel, thereby has caused " effect in head " being commonly called as." head in effect " refers to because earphone Vertical Acoustic Field is not dark, and headphone unit too approaches apart from ear the factitious sensation of sound field producing, and when its concrete manifestation is listened to the music exactly, musical instrument is present in brain and in non-space seemingly.Because the sound of non-free found field meets people, do not listen to normally experience, so will make people experience good telepresenc when listening to the music, need to build good sound field, make people place oneself in the midst of seemingly the center of a music hall.
Summary of the invention
The purpose of this utility model is to provide a kind of passive audio connector of building good sound field and being convenient for carrying.
In order to realize the purpose of this utility model, the utility model provides a kind of audio connector, comprise first input end mouth, the second input port, the first output port and the second output port, first input end mouth receives the first audio signal, the second input port receives the second audio signal, wherein, audio connector also comprises the first attenuator circuit, the second attenuator circuit, the first high-pass filtering circuit, the second high-pass filtering circuit, the first low-pass filter circuit and the second low-pass filter circuit, the first attenuator circuit is used for receiving the first audio signal and the first audio signal is outputed to the first output port after decay, the second attenuator circuit is used for receiving the second audio signal and the second audio signal is outputed to the second output port after decay, the first high-pass filtering circuit is used for receiving the first audio signal and the first audio signal is outputed to the first output port after high-pass filtering, the second high-pass filtering circuit is used for receiving the second audio signal and the second audio signal is outputed to the second output port after high-pass filtering, the first low-pass filter circuit is used for receiving the first audio signal and the first audio signal is outputed to the second output port after low-pass filtering, the second low-pass filter circuit is used for receiving the second audio signal and the second audio signal is outputed to the first output port after low-pass filtering.
From such scheme, the part low frequency signal of the first audio signal is outputed to the second output port, the part low frequency signal of the second audio signal is outputed to the first output port, also utilize high-pass filtering circuit compensated part high-frequency signal simultaneously, make the audio signal of the first output port output comprise part the second audio signal, the audio signal of the second output port output comprises part the first audio signal, be conducive to build a good sound field for hearer, and it is oppressive can not make people experience, this audio connector is passive device simultaneously, be convenient for carrying use.
Scheme further, the first attenuator circuit comprises the first resistance and the second resistance, first input end mouth is electrically connected on the first end of the first resistance, and the first output port is electrically connected on the second end of the first resistance and the first end of the second resistance, the second end ground connection of the second resistance.
Scheme further, the second attenuator circuit comprises the 3rd resistance and the 4th resistance, the second input port is electrically connected on the first end of the 3rd resistance, and the second output port is electrically connected on the second end of the 3rd resistance and the first end of the 4th resistance, the second end ground connection of the 4th resistance.
Therefore, by attenuator circuit, audio signal is carried out outputing to output port after certain decay, avoid making because audio signal is excessive audio frequency Overlay bad.
Scheme further, audio connector also comprises the first double-point double-throw switch, the first double-point double-throw switch comprises the first fixed contact, the second fixed contact, the first moving contact, the second moving contact, the 3rd moving contact and the 4th moving contact, the first fixed contact is selectively electrically connected to the first moving contact or the second moving contact, the second fixed contact is selectively electrically connected to the 3rd moving contact or the 4th moving contact, the first attenuator circuit also comprises the 5th resistance, the first end of the 5th resistance is electrically connected to first input end mouth, the first attenuator circuit also comprises the 6th resistance, the first end of the 6th resistance is electrically connected to the second input port, the first fixed contact is electrically connected to the first output port, the second fixed contact is electrically connected to the second output port, the first moving contact is electrically connected to the 5th resistance, the second moving contact is connected with the second end of the first resistance electricity, the 3rd moving contact is electrically connected to the 6th resistance, the 4th moving contact is electrically connected to the second end of the 3rd resistance.
Therefore, by dpdt double-pole double-throw (DPDT), select decay in various degree, be convenient for people to according to varying environment, decay be regulated.
Scheme further, the resistance value of the 5th resistance is larger than the resistance value of the first resistance, and the resistance value of the 6th resistance is larger than the resistance value of the 3rd resistance.
Therefore high resistance is applicable to the player that power output is larger, low-resistance value is applicable to the player that power output is less, by the wide usage that improves audio connector that arranges of different resistances.
Scheme further, the first high-pass filtering circuit comprises the first electric capacity and the 7th resistance, the first end of the first electric capacity is electrically connected to first input end mouth, and the second end of the first electric capacity is electrically connected to the first end of the 7th resistance, and the second end of the 7th resistance is electrically connected to the first output port.
Scheme further, the second high-pass filtering circuit comprises the second electric capacity and the 8th resistance, the first end of the second electric capacity is electrically connected to the second input port, and the second end of the second electric capacity is electrically connected to the first end of the 8th resistance, and the second end of the 8th resistance is electrically connected to the second output port.
Therefore, utilize high-pass filtering circuit that the part high-frequency signal of audio signal is outputed to output port, because output audio signal has increased low frequency signal partly, in order to make sound can not cause due to too much low frequency signal the imbalance of sound, so need the high-frequency signal of compensated part, make the better effects if of output audio signal.
Scheme further, the first low-pass filter circuit comprises the 9th resistance, the tenth resistance and the 3rd electric capacity, the first end of the 9th resistance is electrically connected to first input end mouth, the second end of the 9th resistance is electrically connected to the first end of the first end of the tenth resistance and the 3rd electric capacity, the second end of the tenth resistance is electrically connected to the second output port, the second end ground connection of the 3rd electric capacity.
Scheme further, the second low-pass filter circuit comprises the 11 resistance, the 12 resistance and the 4th electric capacity, the first end of the 11 resistance is electrically connected to the second input port, the second end of the 11 resistance is electrically connected to the first end of the 12 resistance and the first end of the 4th electric capacity, the second end of the 12 resistance is electrically connected to the first output port, the second end ground connection of the 4th electric capacity.
Therefore, utilize low-pass filter circuit that the part low frequency signal of audio signal is extracted, the part low frequency signal of the first audio signal is outputed to the second output port, the part low frequency signal of the second audio signal is outputed to the first output port, thereby realize intersecting, present mutually.
Scheme further, audio connector also comprises the second double-point double-throw switch, the second double-point double-throw switch comprises the 3rd fixed contact, the 4th fixed contact, the 5th moving contact, the 6th moving contact, the 7th moving contact and the 8th moving contact, the 3rd fixed contact is selectively electrically connected to the 5th moving contact or the 6th moving contact, the 4th fixed contact is selectively electrically connected to the 7th moving contact or the 8th moving contact, the 3rd fixed contact and first input end mouth electrically contact, the 4th fixed contact and the second input port electrically contact, the second end of the 5th moving contact and the first electric capacity electrically contacts, the 6th moving contact is electrically connected to the first end of the 9th resistance, the 7th moving contact is electrically connected to the first end of the 11 resistance, the 8th moving contact is electrically connected to the second end of the second electric capacity.
Therefore, by the second double-point double-throw switch, to intersecting mutual feedback function, switch, whether people can select to need to open according to self-demand intersects feedback function mutually.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model audio connector embodiment.
Fig. 2 is the electrical schematic diagram of the utility model audio connector embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
With reference to Fig. 1, Fig. 1 is the structure chart of the utility model audio connector 1.Audio connector 1 comprises a housing 11, housing 11 two ends are respectively arranged with input port 13 and output port 12, input port 13 comprises L channel input port, R channel input port and grounding ports, and output port 12 comprises L channel output port 121, R channel output port 122 and grounding ports 123.
With reference to Fig. 2, Fig. 2 is the electrical schematic diagram of the utility model audio connector 1, in the housing 11 of audio connector 1, be provided with a substrate, substrate is provided with five terminals LI, LO, RI, RO and GND, wherein terminals LI is electrically connected to L channel input port, and terminals LO is electrically connected to L channel output port 121, and terminals RI is electrically connected to R channel input port, terminals RO and R channel output port 122, terminals GND is electrically connected to grounding ports 123.
On substrate, be also provided with the first attenuator circuit, the second attenuator circuit, the first high-pass filtering circuit, the second high-pass filtering circuit, the first low-pass filter circuit, the second low-pass filter circuit, double-point double-throw switch S1 and double-point double-throw switch S2, wherein, double-point double-throw switch S1 comprises fixed contact d1, fixed contact d2, moving contact a1, moving contact a2, moving contact b1 and moving contact b2, fixed contact d1 is selectively electrically connected to moving contact a1 or moving contact b1, fixed contact d2 is selectively electrically connected to moving contact a2 or moving contact b2, double-point double-throw switch S2 comprises fixed contact g1, fixed contact g2, moving contact e1, moving contact e2, moving contact f1 and moving contact f2, fixed contact g1 is selectively electrically connected to moving contact e1 or moving contact f1, fixed contact g2 is selectively electrically connected to moving contact e2 or moving contact f2.Fixed contact d1 is electrically connected to terminals LO, and fixed contact d2 is electrically connected to terminals RO, and fixed contact g1 is electrically connected to terminals LI, and fixed contact g2 is electrically connected to terminals RI.
The first attenuator circuit comprises resistance R 11, resistance R 21 and resistance R 61, resistance R 11 and resistance R 21 first end separately are all electrically connected to terminals LI, the second end of resistance R 11 is electrically connected to moving contact a1, the second end of resistance R 21 is electrically connected to moving contact b1, the first end of resistance R 61 is electrically connected to fixed contact d1 and terminals LO, the second end ground connection of resistance R 61, preferably, the resistance value of resistance R 11 is larger than the resistance value of resistance R 21.
The second attenuator circuit comprises resistance R 12, resistance R 22 and resistance R 62, resistance R 12 and resistance R 22 first end separately are all electrically connected to terminals RI, the second end of resistance R 12 is electrically connected to moving contact a2, the second end of resistance R 22 is electrically connected to moving contact b2, the first end of resistance R 62 is electrically connected to fixed contact d2 and terminals RO, the second end ground connection of resistance R 62.Preferably, the resistance value of resistance R 12 is larger than the resistance value of resistance R 22.
The first high-pass filtering circuit comprises capacitor C 1 and resistance R 31, and the first end of capacitor C 1 is electrically connected to terminals LI, and the second end of capacitor C 1 is electrically connected to the first end of resistance R 31 and moving contact e1, and the second end of resistance R 31 is electrically connected to terminals LO.
The second high-pass filtering circuit comprises capacitor C 2 and resistance R 32, and the first end of capacitor C 2 is electrically connected to terminals RI, and the second end of capacitor C 2 is electrically connected to the first end of resistance R 32 and moving contact e2, and the second end of resistance R 32 is electrically connected to terminals RO.
The first low-pass filter circuit comprises resistance R 41, resistance R 51 and capacitor C 3, the first end of resistance R 41 is electrically connected to moving contact f1, the second end of resistance R 41 is electrically connected to the first end of the first end of resistance R 51 and capacitor C 3, the second end ground connection of capacitor C 3, the second end of resistance R 51 is electrically connected to terminals RO.
The second low-pass filter circuit comprises resistance R 42, resistance R 52 and capacitor C 4, the first end of resistance R 42 is electrically connected to moving contact f2, the second end of resistance R 42 is electrically connected to the first end of the first end of resistance R 52 and capacitor C 4, the second end ground connection of capacitor C 4, the second end of resistance R 52 is electrically connected to terminals LO.
When double-point double-throw switch S1 connects moving contact b1 and moving contact b2, when dpdt double-pole double-throw (DPDT) S2 connects moving contact f1 and moving contact f2, when audio signal is inputted from input port 13, wherein audio signal comprises left channel audio signal and right channel audio signal, left channel audio signal is from terminals LI input, and right channel audio signal is inputted from terminals RI.
The first attenuator circuit left channel audio signal is decayed after left channel audio signal after output attenuatoin, the first high-pass filtering circuit is exported left channel audio signal L channel high-frequency signal after high-pass filtering, the second low-pass filter circuit is exported right channel audio signal R channel low frequency signal after low-pass filtering, becomes L channel output signal and export from terminals LO after the left channel audio signal after decay, L channel high-frequency signal and the stack of R channel low frequency signal.
The second attenuator circuit right channel audio signal is decayed after right channel audio signal after output attenuatoin, the second high-pass filtering circuit is exported right channel audio signal R channel high-frequency signal after high-pass filtering, the first low-pass filter circuit is exported left channel audio signal L channel low frequency signal after low-pass filtering, becomes R channel output signal and export from terminals RO after the right channel audio signal after decay, R channel high-frequency signal and the stack of L channel low frequency signal.
From such scheme, the low frequency signal that L channel output signal has comprised part R channel, the low frequency signal that R channel output signal has comprised part L channel, people are when using earphone to listen to music playback, left ear not only can hear that the sound of L channel can also hear the sound of part R channel, the sound that auris dextra also not only can be understood R channel can also be heard the sound of part L channel, thereby build the effect that is similar to free found field, make people experience the sense of reality and the telepresenc of sound.
Certainly, people can also be according to the actual demand of oneself, when dpdt double-pole double-throw (DPDT) S2 is connected to moving contact e1 and moving contact e2, low frequency signal will can not intersect mutual feedback, high-frequency signal can not produce yet simultaneously, left channel audio signal is directly from terminals LO output after decay, and right channel audio signal is directly exported from terminals RO after decay.When audio signal is powerful audio signal, people can be connected to dpdt double-pole double-throw (DPDT) S1 moving contact a1 and moving contact a2, by the larger R11 of resistance value and R12, powerful audio signal are decayed, and effectively improve the wide usage of audio connector.
Finally it is emphasized that; the utility model is not limited to above-mentioned execution mode; as the change of attenuator circuit, high-pass filtering circuit or low-pass filter circuit; also for example adopt other switching modes to switch circuit, these variations also should be included in the protection range of the utility model claim.
Claims (10)
1. audio connector, comprises first input end mouth, the second input port, the first output port and the second output port, and described first input end mouth receives the first audio signal, and described the second input port receives the second audio signal;
It is characterized in that:
Described audio connector also comprises
The first attenuator circuit, for receiving described the first audio signal and described the first audio signal being outputed to described the first output port after decay;
The second attenuator circuit, for receiving described the second audio signal and described the second audio signal being outputed to described the second output port after decay;
The first high-pass filtering circuit, for receiving described the first audio signal and described the first audio signal being outputed to described the first output port after high-pass filtering;
The second high-pass filtering circuit, for receiving described the second audio signal and described the second audio signal being outputed to described the second output port after high-pass filtering;
The first low-pass filter circuit, for receiving described the first audio signal and described the first audio signal being outputed to described the second output port after low-pass filtering;
The second low-pass filter circuit, for receiving described the second audio signal and described the second audio signal being outputed to described the first output port after low-pass filtering.
2. audio connector according to claim 1, is characterized in that:
Described the first attenuator circuit comprises the first resistance and the second resistance, described first input end mouth is electrically connected on the first end of described the first resistance, described the first output port is electrically connected on the second end of described the first resistance and the first end of described the second resistance, the second end ground connection of described the second resistance.
3. audio connector according to claim 2, is characterized in that:
Described the second attenuator circuit comprises the 3rd resistance and the 4th resistance, described the second input port is electrically connected on the first end of described the 3rd resistance, described the second output port is electrically connected on the second end of described the 3rd resistance and the first end of described the 4th resistance, the second end ground connection of described the 4th resistance.
4. audio connector according to claim 3, is characterized in that:
Described audio connector also comprises the first double-point double-throw switch, described the first double-point double-throw switch comprises the first fixed contact, the second fixed contact, the first moving contact, the second moving contact, the 3rd moving contact and the 4th moving contact, described the first fixed contact is selectively electrically connected to described the first moving contact or described the second moving contact, and described the second fixed contact is selectively electrically connected to described the 3rd moving contact or described the 4th moving contact;
Described the first attenuator circuit also comprises the 5th resistance, the first end of described the 5th resistance is electrically connected to described first input end mouth, described the first attenuator circuit also comprises the 6th resistance, the first end of described the 6th resistance is electrically connected to described the second input port, and described the first fixed contact is electrically connected to described the first output port;
Described the second fixed contact is electrically connected to described the second output port, described the first moving contact is electrically connected to described the 5th resistance, described the second moving contact is electrically connected to the second end of described the first resistance, described the 3rd moving contact is electrically connected to described the 6th resistance, and described the 4th moving contact is electrically connected to the second end of described the 3rd resistance.
5. audio connector according to claim 4, is characterized in that:
The resistance value of described the 5th resistance is larger than the resistance value of described the first resistance, and the resistance value of described the 6th resistance is larger than the resistance value of described the 3rd resistance.
6. according to the audio connector described in claim 1 to 4 any one, it is characterized in that:
Described the first high-pass filtering circuit comprises the first electric capacity and the 7th resistance, the first end of described the first electric capacity is electrically connected to described first input end mouth, the second end of described the first electric capacity is electrically connected to the first end of described the 7th resistance, and the second end of described the 7th resistance is electrically connected to the first output port.
7. audio connector according to claim 6, is characterized in that:
Described the second high-pass filtering circuit comprises the second electric capacity and the 8th resistance, the first end of described the second electric capacity is electrically connected to described the second input port, the second end of described the second electric capacity is electrically connected to the first end of described the 8th resistance, and the second end of described the 8th resistance is electrically connected to the second output port.
8. audio connector according to claim 7, is characterized in that:
Described the first low-pass filter circuit comprises the 9th resistance, the tenth resistance and the 3rd electric capacity, the first end of described the 9th resistance is electrically connected to described first input end mouth, the second end of described the 9th resistance is electrically connected to the first end of the first end of described the tenth resistance and the 3rd electric capacity, the second end of described the tenth resistance is electrically connected to described the second output port, the second end ground connection of described the 3rd electric capacity.
9. audio connector according to claim 8, is characterized in that:
Described the second low-pass filter circuit comprises the 11 resistance, the 12 resistance and the 4th electric capacity, the first end of described the 11 resistance is electrically connected to described the second input port, the second end of described the 11 resistance is electrically connected to the first end of described the 12 resistance and the first end of the 4th electric capacity, the second end of described the 12 resistance is electrically connected to described the first output port, the second end ground connection of described the 4th electric capacity.
10. audio connector according to claim 9, is characterized in that:
Described audio connector also comprises the second double-point double-throw switch, described the second double-point double-throw switch comprises the 3rd fixed contact, the 4th fixed contact, the 5th moving contact, the 6th moving contact, the 7th moving contact and the 8th moving contact, described the 3rd fixed contact is selectively electrically connected to described the 5th moving contact or described the 6th moving contact, and described the 4th fixed contact is selectively electrically connected to described the 7th moving contact or described the 8th moving contact;
Described the 3rd fixed contact and described first input end mouth electrically contact, described the 4th fixed contact and described the second input port electrically contact, the second end of described the 5th moving contact and described the first electric capacity electrically contacts, described the 6th moving contact is electrically connected to the first end of described the 9th resistance, described the 7th moving contact is electrically connected to the first end of described the 11 resistance, and described the 8th moving contact is electrically connected to the second end of described the second electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545954.1U CN203523018U (en) | 2013-09-03 | 2013-09-03 | Audio frequency connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545954.1U CN203523018U (en) | 2013-09-03 | 2013-09-03 | Audio frequency connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203523018U true CN203523018U (en) | 2014-04-02 |
Family
ID=50381884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320545954.1U Expired - Fee Related CN203523018U (en) | 2013-09-03 | 2013-09-03 | Audio frequency connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203523018U (en) |
-
2013
- 2013-09-03 CN CN201320545954.1U patent/CN203523018U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Audio connecting device for acoustic equipment Effective date of registration: 20190910 Granted publication date: 20140402 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN OCVACO ELECTRONIC Co.,Ltd. Registration number: Y2019980000140 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20210903 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230302 Granted publication date: 20140402 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN OCVACO ELECTRONIC Co.,Ltd. Registration number: Y2019980000140 |