CN204014021U - With the earphone of sound-conducting apparatus - Google Patents
With the earphone of sound-conducting apparatus Download PDFInfo
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- CN204014021U CN204014021U CN201420273790.6U CN201420273790U CN204014021U CN 204014021 U CN204014021 U CN 204014021U CN 201420273790 U CN201420273790 U CN 201420273790U CN 204014021 U CN204014021 U CN 204014021U
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Abstract
The utility model discloses a kind of earphone with sound-conducting apparatus, comprise sound-conducting apparatus, in order to input people's acoustical signal, and convert people's acoustical signal to first audio signal; Echo treatment circuit, is electrically connected with described sound-conducting apparatus, in order to described the first audio signal is carried out to echo processing; Audio connector, in order to input music signal, and converts described music signal to second audio signal; Stereo process circuit, is electrically connected with described echo treatment circuit and audio connector, carries out stereo process in order to will carry out echo the first audio signal after treatment and the second audio signal; Power amplification circuit, is electrically connected with described stereo process circuit, carries out power amplification in order to the mixed audio signal to after stereo process; Loudspeaker, are connected with described power amplification circuit signal, the mixed audio signal after amplifying in order to output.Earphone of the present utility model, both can be used for listening to the music, and can also be used to, with sing karaoke, greatly strengthen the practicality of earphone, satisfied the demands of consumers.
Description
Technical field
The utility model relates to earphone, relates in particular to a kind of earphone with sound-conducting apparatus.
Background technology
Along with the development of electronic technology and the raising of people's living standard, various electronic products become product indispensable in people's daily life, work, leisure, and especially earphone becomes people and carries audio frequency apparatus.But existing earphone, generally only for listening to the music etc., and can not realize Kara OK function.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art and a kind of earphone with sound-conducting apparatus is provided, and this earphone can be used for listening to the music, and can also follow sing karaoke.
The technical scheme that the utility model solution prior art problem adopts is: a kind of earphone with sound-conducting apparatus, comprising:
Sound-conducting apparatus, in order to input people's acoustical signal, and converts described people's acoustical signal to first audio signal;
Echo treatment circuit, is electrically connected with described sound-conducting apparatus, in order to described the first audio signal is carried out to echo processing;
Audio connector, in order to input music signal, and converts described music signal to second audio signal;
Stereo process circuit, is electrically connected with described echo treatment circuit and audio connector, carries out stereo process in order to will carry out echo the first audio signal after treatment and described the second audio signal;
Power amplification circuit, is electrically connected with described stereo process circuit, carries out power amplification in order to the mixed audio signal to after stereo process;
Loudspeaker, are connected with described power amplification circuit signal, the mixed audio signal after amplifying in order to output.
Below technique scheme is further elaborated:
Further, between described sound-conducting apparatus and described echo treatment circuit, be connected with pre-amplification circuit, in order to the first audio signal is amplified.
Further, between described audio connector and stereo process circuit, be connected with left and right acoustic channels commutation circuit, in order to switch the left and right acoustic channels of the first audio signal of described audio connector input.
Further, described sound-conducting apparatus is microphone.
Further, described echo treatment circuit comprises echo process chip, the 11 resistance, the 13 resistance, the 15 resistance, the 16 resistance, the 17 resistance, the 18 resistance, the 19 resistance, the 3rd electric capacity, the 6th electric capacity, the 8th electric capacity, the 9th electric capacity, the 12 electric capacity, the 28 electric capacity, the 30 electric capacity and adjustable resistance;
One end of described the 11 resistance is connected with the first low-pass filtering input pin of described echo process chip, the other end is connected in series the 28 electric capacity and the 19 resistance successively, described the 19 resistance is connected with described adjustable resistance, and described adjustable resistance is connected with the second low-pass filtering output pin of described echo process chip by described the 30 electric capacity, the 15 resistance successively; The node of described the 11 resistance and the 28 electric capacity is connected to the first low-pass filtering output pin of described echo process chip by the 13 resistance, between described the first low-pass filtering input pin and the first low-pass filtering output pin, be connected described the 3rd electric capacity, described the 28 electric capacity is connected with the 19 node of resistance and the output of described pre-amplification circuit, and the node of described the 15 resistance and the 30 electric capacity is by the 9th capacity earth;
Described the second low-pass filtering input pin connects described the 17 resistance one end, described the second low-pass filtering output pin connects described the 16 resistance one end, described the 16 resistance and the 17 resistance other end, by described the 8th capacity earth, are also connected with described the 5th electric capacity between described the second low-pass filtering input pin and described the second low-pass filtering output pin;
The node of described the 16 resistance and the 8th electric capacity is connected to the second amplifier output pin of described echo process chip by described the 18 resistance, described the second amplifier output pin is also connected to the second amplifier input pin of described echo process chip by described the 12 electric capacity; Between the first amplifier input pin of described echo process chip and the first amplifier output pin, be connected with the 13 electric capacity.
Further, described stereo process circuit comprises the 14 resistance, the 20 resistance, the 21 resistance, the 29 electric capacity, described the first low-pass filtering output pin connects described the 14 resistance, the 29 electric capacity successively, described the 29 electric capacity connects respectively one end of the 20 resistance and the 21 resistance, described the 20 other end of resistance and the R channel of described audio connector are connected, and described the 21 other end of resistance and the L channel of described audio connector are connected.
Further, described echo process chip is PT2399.
The beneficial effects of the utility model are: earphone of the present utility model, can be by microphone arrangement by typing user's sound, and sneak into left and right acoustic channels after this sound is processed by echo, finally realize individual Kara OK function.So, earphone of the present utility model both can be used for listening to the music, and can also be used to, with sing karaoke, greatly strengthen the practicality of earphone, satisfied the demands of consumers.
Brief description of the drawings
Fig. 1 is the functional-block diagram of the utility model embodiment;
Fig. 2 is the circuit theory diagrams of a specific embodiment of the utility model.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Describe the technical solution of the utility model in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present utility model intuitively.
Shown in Fig. 1, embodiment of the present utility model provides a kind of earphone with sound-conducting apparatus, comprise sound-conducting apparatus, echo treatment circuit 20, audio connector 30, stereo process circuit 40, power amplification circuit 50, loudspeaker 60 and power module (not shown), wherein, sound-conducting apparatus is in order to input people's acoustical signal, and convert described people's acoustical signal to first audio signal and input to echo treatment circuit 20, this sound-conducting apparatus can adopt microphone 10.Echo treatment circuit 20 is electrically connected with described sound-conducting apparatus, in order to described the first audio signal is carried out to echo processing.Audio connector 30 is in order to input music signal, and converts described music signal to second audio signal and input to stereo process circuit 40; Stereo process circuit 40 is electrically connected with described echo treatment circuit 20 and audio connector 30, in order to carry out stereo process formation mixed audio signal by carrying out the second audio signal that echo the first audio signal after treatment and audio connector 30 input; Power amplification circuit 50 is electrically connected with described stereo process circuit 40, carries out power amplification in order to the mixed audio signal to after stereo process; Loudspeaker 60 are connected with described power amplification circuit 50 signals, the mixed audio signal after amplifying in order to output, and general, loudspeaker 60 comprise left horn and right horn, power module is above-mentioned each circuit supply.
In a preferred embodiment of the present utility model, between sound-conducting apparatus and described echo treatment circuit 20, be connected with pre-amplification circuit 70, in order to the first audio signal is amplified, the first audio signal after amplification inputs to echo treatment circuit 20 again and carries out echo processing.
In another preferred embodiment of the present utility model, between audio connector 30 and stereo process circuit 40, be connected with left and right acoustic channels commutation circuit 80, in order to switch the left and right acoustic channels of the first audio signal that described audio connector 30 inputs, general L channel is used for transmitting former tone signal, and R channel transmission audio signal can be mixed former tone signal and/or audio signal by switching right and left sound channel with the first audio signal.
In specific works process, first audio connector 30 is inserted into mobile phone, on the audio-frequence player devices such as MP3, by audio-frequence player device audio plays, now, audio connector 30 converts music signal to second audio signal and inputs to stereo process circuit 40, simultaneously, user can follow the rhythm of music with singing, convert the first audio signal with singing people's acoustical signal of sending to after by microphone 10 typings, this first audio signal can be undertaken inputing to echo treatment circuit 20 after signal amplification by pre-amplification circuit 70 and be carried out echo processing, input to again in stereo process circuit 40 and carry out stereo process formation mixed audio signal with the second audio signal through the first audio signal of echo processing, this mixed audio signal carries out power amplification by power amplification circuit 50 again, finally export by loudspeaker 60.
In said process, can control by left and right acoustic channels commutation circuit 80 left and right acoustic channels of audio connector 30, to select former tone signal and first audio signal mixing of L channel, or audio signal and first audio signal mixing of selection R channel, or selection dual track and the first audio signal mixing, so, reach different Karaoke effects.
In addition, dead battery in power module, or user selects while only listening to the music, and the music of the audio-frequence player devices such as mobile phone, MP3 directly transfers to power amplification circuit 50 by audio connector 30 and carries out after power amplification, export by loudspeaker 60, can keep so the original function of earphone.
Shown in Fig. 2, Fig. 2 is circuit theory diagrams of the present utility model, in a specific embodiment of the present utility model, pre-amplification circuit 70 comprises triode Q1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the second capacitor C the 2, the 23 capacitor C the 23, the 34 resistance R the 34, the 27 capacitor C 27 etc., and the first audio signal is carried out signal amplification by triode Q1.
Echo treatment circuit 20 comprises echo process chip D1 (this echo process chip can adopt PT2399), the 11 resistance R the 11, the 13 resistance R the 13, the 15 resistance R the 15, the 16 resistance R the 16, the 17 resistance R the 17, the 18 resistance R the 18, the 19 resistance R 19, the 3rd capacitor C 3, the 6th capacitor C 6, the 8th capacitor C 8, the 9th capacitor C the 9, the 12 capacitor C the 12, the 28 capacitor C the 28, the 30 capacitor C 30 and adjustable resistance R35; Wherein, one end of the 11 resistance R 11 is connected with the first low-pass filtering input pin 16 of described echo process chip D1, the other end is connected in series the 28 capacitor C the 28 and the 19 resistance R 19 successively, the 19 resistance R 19 is connected with described adjustable resistance R35, and adjustable resistance R35 is connected with the second low-pass filtering output pin 14 of described echo process chip D1 by described the 30 electric capacity R30, the 15 resistance R 15 successively; The node of the 11 resistance R 11 and the 28 capacitor C 28 is connected to the first low-pass filtering output pin 15 of described echo process chip D1 by the 13 resistance R 13, between described the first low-pass filtering input pin 16 and the first low-pass filtering output pin 15, be connected described the 3rd capacitor C 3, the 28 capacitor C 28 is connected with the 19 node of resistance R 19 and the output of described pre-amplification circuit, and the node of the 15 resistance R 15 and the 30 capacitor C 30 is by the 9th capacitor C 9 ground connection; The second low-pass filtering input pin 13 connects described the 17 resistance R 17 one end, described the second low-pass filtering output pin 14 connects described the 16 resistance R 16 one end, the 16 resistance R the 16 and the 17 resistance R 17 other ends, by described the 8th capacitor C 8 ground connection, are also connected with described the 5th capacitor C 5 between described the second low-pass filtering input pin 13 and described the second low-pass filtering output pin 14; The node of the 16 resistance R 16 and the 8th capacitor C 8 is connected to the second amplifier output pin 12 of described echo process chip D1 by described the 18 resistance R 18, described the second amplifier output pin 12 is also connected to the second amplifier input pin 11 of described echo process chip D1 by described the 12 capacitor C 12; Between the first amplifier input pin 10 of described echo process chip D1 and the first amplifier output pin 9, be connected with the 13 capacitor C 13.The first audio signal of pre-amplification circuit input is processed rear formation echo effect by echo process chip D1, and the amplitude of echo can be adjusted by adjustable resistance R35, and for example echo can the adjusting from 3 milliseconds to 300 milliseconds.
Stereo process circuit 40 comprises the 14 resistance R the 14, the 20 resistance R the 20, the 21 resistance R the 21, the 29 capacitor C 29, the first low-pass filtering output pin 15 connects described the 14 resistance R the 14, the 29 capacitor C 29 successively, the 29 capacitor C 29 connects respectively one end of the 20 resistance R 20 and the 21 resistance R 21, the 20 other end of resistance R 20 and the R channel of audio connector are connected, and the 21 other end of resistance R 21 and the L channel of described audio connector are connected.Be mixed to R channel by echo the first audio signal after treatment by the 20 resistance R 20, be mixed to L channel by the 21 resistance R 21.
Power amplification circuit 50 comprises power amplifier chips IC2, the 18 capacitor C the 18, the 22 capacitor C the 22, the 36 resistance R the 36, the 37 resistance R 37 etc., mixed audio signal after stereo process, undertaken after power amplification by power amplifier chips IC2, by left horn SPKL2 and right horn SPKR2 output.
In sum, earphone of the present utility model, can be by microphone arrangement by typing user's sound, and sneak into left and right acoustic channels after this sound is processed by echo, finally realizes individual Kara OK function.So, earphone of the present utility model both can be used for listening to the music, and can also be used to, with sing karaoke, greatly strengthen the practicality of earphone, satisfied the demands of consumers.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. the earphone with sound-conducting apparatus, is characterized in that, comprising:
Sound-conducting apparatus, in order to input people's acoustical signal, and converts described people's acoustical signal to first audio signal;
Echo treatment circuit, is electrically connected with described sound-conducting apparatus, in order to described the first audio signal is carried out to echo processing;
Audio connector, in order to input music signal, and converts described music signal to second audio signal;
Stereo process circuit, is electrically connected with described echo treatment circuit and audio connector, carries out stereo process in order to will carry out echo the first audio signal after treatment and described the second audio signal;
Power amplification circuit, is electrically connected with described stereo process circuit, carries out power amplification in order to the mixed audio signal to after stereo process;
Loudspeaker, are connected with described power amplification circuit signal, the mixed audio signal after amplifying in order to output.
2. the earphone with sound-conducting apparatus according to claim 1, is characterized in that: between described sound-conducting apparatus and described echo treatment circuit, be connected with pre-amplification circuit, in order to the first audio signal is amplified.
3. the earphone with sound-conducting apparatus according to claim 1, is characterized in that: between described audio connector and stereo process circuit, be connected with left and right acoustic channels commutation circuit, in order to switch the left and right acoustic channels of the first audio signal of described audio connector input.
4. the earphone with sound-conducting apparatus according to claim 1, is characterized in that: described sound-conducting apparatus is microphone.
5. the earphone with sound-conducting apparatus according to claim 2, is characterized in that: described echo treatment circuit comprises echo process chip, the 11 resistance, the 13 resistance, the 15 resistance, the 16 resistance, the 17 resistance, the 18 resistance, the 19 resistance, the 3rd electric capacity, the 6th electric capacity, the 8th electric capacity, the 9th electric capacity, the 12 electric capacity, the 28 electric capacity, the 30 electric capacity and adjustable resistance;
One end of described the 11 resistance is connected with the first low-pass filtering input pin of described echo process chip, the other end is connected in series the 28 electric capacity and the 19 resistance successively, described the 19 resistance is connected with described adjustable resistance, and described adjustable resistance is connected with the second low-pass filtering output pin of described echo process chip by described the 30 electric capacity, the 15 resistance successively; The node of described the 11 resistance and the 28 electric capacity is connected to the first low-pass filtering output pin of described echo process chip by the 13 resistance, between described the first low-pass filtering input pin and the first low-pass filtering output pin, be connected described the 3rd electric capacity, described the 28 electric capacity is connected with the 19 node of resistance and the output of described pre-amplification circuit, and the node of described the 15 resistance and the 30 electric capacity is by the 9th capacity earth;
Described the second low-pass filtering input pin connects described the 17 resistance one end, described the second low-pass filtering output pin connects described the 16 resistance one end, described the 16 resistance and the 17 resistance other end, by described the 8th capacity earth, are also connected with the 5th electric capacity between described the second low-pass filtering input pin and described the second low-pass filtering output pin;
The node of described the 16 resistance and the 8th electric capacity is connected to the second amplifier output pin of described echo process chip by described the 18 resistance, described the second amplifier output pin is also connected to the second amplifier input pin of described echo process chip by described the 12 electric capacity; Between the first amplifier input pin of described echo process chip and the first amplifier output pin, be connected with the 13 electric capacity.
6. the earphone with sound-conducting apparatus according to claim 5, it is characterized in that: described stereo process circuit comprises the 14 resistance, the 20 resistance, the 21 resistance, the 29 electric capacity, described the first low-pass filtering output pin connects described the 14 resistance, the 29 electric capacity successively, described the 29 electric capacity connects respectively one end of the 20 resistance and the 21 resistance, described the 20 other end of resistance and the R channel of described audio connector are connected, and described the 21 other end of resistance and the L channel of described audio connector are connected.
7. the earphone with sound-conducting apparatus according to claim 5, is characterized in that: described echo process chip is PT2399.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273790.6U CN204014021U (en) | 2014-05-27 | 2014-05-27 | With the earphone of sound-conducting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273790.6U CN204014021U (en) | 2014-05-27 | 2014-05-27 | With the earphone of sound-conducting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN204014021U true CN204014021U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420273790.6U Expired - Fee Related CN204014021U (en) | 2014-05-27 | 2014-05-27 | With the earphone of sound-conducting apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338451A (en) * | 2015-11-26 | 2016-02-17 | 宁波柏人艾电子有限公司 | Control circuit of loudspeaker box |
| CN105338449A (en) * | 2015-11-26 | 2016-02-17 | 宁波柏人艾电子有限公司 | Sound effect processing circuit |
| CN105357611A (en) * | 2015-11-26 | 2016-02-24 | 宁波柏人艾电子有限公司 | Audio pre-amplification circuit |
| CN108737918A (en) * | 2017-04-21 | 2018-11-02 | 李龙根 | A kind of adjustable double reverberation Karaoke earphones of tone |
| CN111147981A (en) * | 2020-01-20 | 2020-05-12 | 山东建筑大学 | Experimental audio amplification circuit using earphone as microphone |
| CN112333586A (en) * | 2020-09-28 | 2021-02-05 | 歌尔科技有限公司 | Earphone equalizer adjusting device and earphone |
| CN116095564A (en) * | 2023-04-10 | 2023-05-09 | 深圳市嘉润原新显科技有限公司 | Display mixing circuit and display |
-
2014
- 2014-05-27 CN CN201420273790.6U patent/CN204014021U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338451A (en) * | 2015-11-26 | 2016-02-17 | 宁波柏人艾电子有限公司 | Control circuit of loudspeaker box |
| CN105338449A (en) * | 2015-11-26 | 2016-02-17 | 宁波柏人艾电子有限公司 | Sound effect processing circuit |
| CN105357611A (en) * | 2015-11-26 | 2016-02-24 | 宁波柏人艾电子有限公司 | Audio pre-amplification circuit |
| CN108737918A (en) * | 2017-04-21 | 2018-11-02 | 李龙根 | A kind of adjustable double reverberation Karaoke earphones of tone |
| CN111147981A (en) * | 2020-01-20 | 2020-05-12 | 山东建筑大学 | Experimental audio amplification circuit using earphone as microphone |
| CN112333586A (en) * | 2020-09-28 | 2021-02-05 | 歌尔科技有限公司 | Earphone equalizer adjusting device and earphone |
| CN116095564A (en) * | 2023-04-10 | 2023-05-09 | 深圳市嘉润原新显科技有限公司 | Display mixing circuit and display |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160608 Address after: 518000, L building, building 20, 9 blocks C, science and Technology Park, 1 Qing Xiang Road, Longhua New District, Guangdong, Shenzhen, China Patentee after: Shenzhen Micro Communication Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Songgang Yanchuan Street Community Yan Chao Lu No. 57 building F 3-4 layer Patentee before: SHENZHEN AOHONG ELECTRONICS CO., LTD. |
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| 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: 20141210 Termination date: 20160527 |