CN102740192A - Multifunctional microphone amplifier - Google Patents
Multifunctional microphone amplifier Download PDFInfo
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- CN102740192A CN102740192A CN2012101601637A CN201210160163A CN102740192A CN 102740192 A CN102740192 A CN 102740192A CN 2012101601637 A CN2012101601637 A CN 2012101601637A CN 201210160163 A CN201210160163 A CN 201210160163A CN 102740192 A CN102740192 A CN 102740192A
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Abstract
The invention provides a multifunctional microphone amplifier. Two corresponding microphone input preceding stage amplification modules and two signal embedding input modules are connected; the two signal embedding input modules are connected with two sound mixing modules; two linear input preceding stage amplification modules and the two sound mixing module; the two sound mixing modules are connected with a stereophonic single sound track switching module; the stereophonic single sound track switching module is connected with a USB (Universal Serial Bus) sound card; a sound mixing module is connected with a headphone amplifier output module, a power amplifier module and two socket signal output modules; a musical instrument digital signal input module is connected with the USB sound card through a musical instrument digital signal input/output indication module; the musical instrument digital signal input module is connected with the USB sound card through the musical instrument digital signal input/output indication module; and both the musical instrument digital signal input module and the musical instrument digital signal input/output indication module are connected with the USB sound card. With the adoption of the multifunctional microphone amplifier, a strong music function is realized; and a great music enjoyment and use flexibility can be brought to music lovers.
Description
Technical field
The invention provides a kind of multifunction microphone amplifier, belong to the audio processing technology field.
Background technology
Microphone amplifier is the equipment that the signal of a kind of microphone input amplifies, and existing microphone amplifier generally only has single sound enlarging function, and needs supporting sound card, power amplifier or ear equipment such as to put could to use.
Summary of the invention
The present invention only has a single sound enlarging function for what solve that existing microphone amplifier exists; And need supporting sound card, power amplifier or ear the problem that equipment could use such as to put; And then a kind of multifunction microphone amplifier is provided; Comprise that first microphone input prime amplification module, the first linear input prime amplification module, first signal embed input module, the first audio mixing module, second microphone input prime amplification module, the second linear input prime amplification module, secondary signal and embed input module, the second audio mixing module, stereo monophony handover module, musical instrument digital signal input module, musical instrument digital signal output module, musical instrument digital signal input and output indicating module, USB sound card, audio digital signals input module, audio digital signals output module, audio mixing module, 100mW ear and put output module, 2 * 6W power amplifier output module, RCA socket signal output module and 6.35JACK socket signal output module; The microphone signal output of first microphone input prime amplification module is connected with the microphone signal input that first signal embeds input module; The microphone signal output that first signal embeds input module is connected with the microphone signal input of the first audio mixing module; The linear signal output of the first linear input prime amplification module is connected with the linear signal input of the first audio mixing module; The microphone signal output of second microphone input prime amplification module is connected with the microphone signal input that secondary signal embeds input module; The microphone signal output that secondary signal embeds input module is connected with the microphone signal input of the second audio mixing module; The linear signal output of the second linear input prime amplification module is connected with the linear signal input of the second audio mixing module; The audio signal output of the first audio mixing module is connected with the first audio signal input of stereo monophony handover module; The audio signal output of the second audio mixing module is connected with the second audio signal input of stereo monophony handover module; First audio signal output end of stereo monophony handover module is connected with first audio signal input end of audio mixing module, and second audio signal output end of stereo monophony handover module is connected with the audio signal input end of USB sound card, and the audio signal output end of USB sound card is connected with second audio signal input end of audio mixing module; The ear discharge signal input that the ear discharge signal output and the 100mW ear of audio mixing module put output module is connected; The power amplifier signal output part of audio mixing module is connected with the power amplifier signal input part of 2 * 6W power amplifier output module, and the RCA socket signal output part of audio mixing module is connected with the RCA socket signal input part of RCA socket signal output module, and the JACK socket signal output part of audio mixing module is connected with the JACK socket signal input part of 6.35JACK socket signal output module; The digital signal output end of musical instrument digital signal input module is connected with the digital signal input end of musical instrument digital signal input and output indicating module; The digital signal input end of musical instrument digital signal output module is connected with the digital signal output end of musical instrument digital signal input and output indicating module, and the index signal output of musical instrument digital signal input and output indicating module is connected with the index signal input of USB sound card, and the index signal input of musical instrument digital signal input and output indicating module is connected with the index signal output of USB sound card; The digital signal output end of audio digital signals input module is connected with the digital signal input end of USB sound card, and the digital signal input end of audio digital signals output module is connected with the digital signal output end of USB sound card.
Technical scheme by the invention described above provides can be found out; The present invention has realized powerful music function and can bring great music to enjoy and the use flexibility to the music-lover through USB sound card, two-way MIC input, two-way LINE input, two-way LINE output, the input of MIDI music signal are put output with output, digital signal input and output, power amplifier output and ear and combined.
Description of drawings
Fig. 1 is the structural representation of the multifunction microphone amplifier that provides of the specific embodiment of the invention;
Fig. 2 is first microphone input prime amplification module that provides of the specific embodiment of the invention and the electrical block diagram of second microphone input prime amplification module;
Fig. 3 is the first linear input prime amplification module and the second linear electrical block diagram of importing the prime amplification module that the specific embodiment of the invention provides;
Fig. 4 is the electrical block diagram of the stereo monophony handover module that provides of the specific embodiment of the invention;
Fig. 5 is the electrical block diagram of 2 * 6W power amplifier output module of providing of the specific embodiment of the invention;
Fig. 6 is the electrical block diagram of the specific embodiment of the invention musical instrument digital signal input module, musical instrument digital signal output module and the musical instrument digital signal input and output indicating module that provide;
Fig. 7 is the electrical block diagram that 100mW ear that the specific embodiment of the invention provides is put output module.
Embodiment
The specific embodiment of the invention provides a kind of multifunction microphone amplifier; As shown in Figure 1; Comprise that the linear input prime amplification module of first microphone input prime amplification module 1, first 2, first signal embed the linear input prime amplification module of input module 3, the first audio mixing module 4, second microphone input prime amplification module 5, second 6, secondary signal and embed input module 7, the second audio mixing module 8, stereo monophony handover module 9, musical instrument digital signal input module 10, musical instrument digital signal output module 11, musical instrument digital signal input and output indicating module 12, USB sound card 13, audio digital signals input module 14, audio digital signals output module 15, audio mixing module 16,100mW ear and put output module 17,2 * 6W power amplifier output module 18, RCA socket signal output module 19 and 6.35JACK socket signal output module 20; The microphone signal output of first microphone input prime amplification module 1 is connected with the microphone signal input that first signal embeds input module 3; The microphone signal output that first signal embeds input module 3 is connected with the microphone signal input of the first audio mixing module 4; The linear signal output of the first linear input prime amplification module 2 is connected with the linear signal input of the first audio mixing module 4; The microphone signal output of second microphone input prime amplification module 5 is connected with the microphone signal input that secondary signal embeds input module 7; The microphone signal output that secondary signal embeds input module 7 is connected with the microphone signal input of the second audio mixing module 8; The linear signal output of the second linear input prime amplification module 6 is connected with the linear signal input of the second audio mixing module 8; The audio signal output of the first audio mixing module 4 is connected with the first audio signal input of stereo monophony handover module 9; The audio signal output of the second audio mixing module 8 is connected with the second audio signal input of stereo monophony handover module 9; First audio signal output end of stereo monophony handover module 9 is connected with first audio signal input end of audio mixing module 16; Second audio signal output end of stereo monophony handover module 9 is connected with the audio signal input end of USB sound card 13; The audio signal output end of USB sound card 13 is connected with second audio signal input end of audio mixing module 16, and the ear discharge signal input that the ear discharge signal output and the 100mW ear of audio mixing module 16 put output module 17 is connected, and the power amplifier signal output part of audio mixing module 16 is connected with the power amplifier signal input part of 2 * 6W power amplifier output module 18; The RCA socket signal output part of audio mixing module 16 is connected with the RCA socket signal input part of RCA socket signal output module 19; The JACK socket signal output part of audio mixing module 16 is connected with the JACK socket signal input part of 6.35JACK socket signal output module 20, and the digital signal output end of musical instrument digital signal input module 10 is connected with the digital signal input end of musical instrument digital signal input and output indicating module 12, and the digital signal input end of musical instrument digital signal output module 11 is connected with the digital signal output end of musical instrument digital signal input and output indicating module 12; The index signal output of musical instrument digital signal input and output indicating module 12 is connected with the index signal input of USB sound card 13; The index signal input of musical instrument digital signal input and output indicating module 12 is connected with the index signal output of USB sound card 13, and the digital signal output end of audio digital signals input module 14 is connected with the digital signal input end of USB sound card 13, and the digital signal input end of audio digital signals output module 15 is connected with the digital signal output end of USB sound card 13.
Concrete; USB sound card 13 can adopt USB24BIT/196KHz sound card (CM6620 arrange in pairs or groups CM9882); First microphone input prime amplification module 1 all can adopt XLR or 6.35 plugs with second microphone input prime amplification module 5, and the first linear input prime amplification module 2 and second linearity are imported prime amplification module 6 all can adopt XLR, 6.35 or the RCA plug.
Optional; This multifunction microphone amplifier can also comprise input overload reminding module 21; The overload measurement signal output part of the first audio mixing module 4 is connected with the first overload measurement signal input part of input overload reminding module 21, and the overload measurement signal output part of the second audio mixing module 8 is connected with the second overload measurement signal input part of input overload reminding module 21.
The operation principle of the microphone amplifier that this embodiment provides is:
1). to shown in Figure 7, balanced signal is imported from J1 like Fig. 2, and (Q1, Q2 are the input overload protections) amplifies through amplifier U1, and W1 can regulate the multiplication factor of U1; U2 is passed through balanced signal in the back; Convert non-equilibrium signal into and switch to the microphone input or be linear input, output to U5 again, as switch to the then straight-through U5 that enters into of linear input signal as just amplifying through U25 from microphone input signal through K switch 1; The output signal of U5 amplifies output through U6 again through K3 (K3 is stereo and the monophony diverter switch) and gets into mixer circuit; Another input of mixer circuit is the output of USB sound card, so just can be output as circuit output, sound card output through regulating W3 control mixer circuit; Still both export (both export ratios were adjustable when both exported simultaneously) simultaneously; Output to ear through the W5 volume control potentiometer after the output of mixer circuit is amplified through U18 and put, the RCA socket is on 6.35mmJACK socket and the 2X6W power amplifier;
2). balanced signal is identical with above-mentioned flow process from J2 input signal flow process;
3). digital signal directly is input to the digital signal input end of USB sound card from J13, the USB digital signal output end is received J14 output through T1 (digital signal transformer);
4) the .MIDI signal is imported the midi signal input that enters into sound card through the 6N138 optocoupler from J11, and the MIDI output signal of sound card is through Q14, and Q15 exports from J12.
The technical scheme that adopts present embodiment to provide; The present invention has realized powerful music function and can bring great music to enjoy and the use flexibility to the music-lover through USB sound card, two-way MIC input, two-way LINE input, two-way LINE output, the input of MIDI music signal are put output with output, digital signal input and output, power amplifier output and ear and combined.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (2)
1. multifunction microphone amplifier; Comprise that first microphone input prime amplification module, the first linear input prime amplification module, first signal embed input module, the first audio mixing module, second microphone input prime amplification module, the second linear input prime amplification module, secondary signal and embed input module, the second audio mixing module, stereo monophony handover module, musical instrument digital signal input module, musical instrument digital signal output module, musical instrument digital signal input and output indicating module, USB sound card, audio digital signals input module, audio digital signals output module, audio mixing module, 100mW ear and put output module, 2 * 6W power amplifier output module, RCA socket signal output module and 6.35JACK socket signal output module; It is characterized in that; The microphone signal output of first microphone input prime amplification module is connected with the microphone signal input that first signal embeds input module; The microphone signal output that first signal embeds input module is connected with the microphone signal input of the first audio mixing module; The linear signal output of the first linear input prime amplification module is connected with the linear signal input of the first audio mixing module; The microphone signal output of second microphone input prime amplification module is connected with the microphone signal input that secondary signal embeds input module; The microphone signal output that secondary signal embeds input module is connected with the microphone signal input of the second audio mixing module; The linear signal output of the second linear input prime amplification module is connected with the linear signal input of the second audio mixing module; The audio signal output of the first audio mixing module is connected with the first audio signal input of stereo monophony handover module; The audio signal output of the second audio mixing module is connected with the second audio signal input of stereo monophony handover module; First audio signal output end of stereo monophony handover module is connected with first audio signal input end of audio mixing module; Second audio signal output end of stereo monophony handover module is connected with the audio signal input end of USB sound card; The audio signal output end of USB sound card is connected with second audio signal input end of audio mixing module, and the ear discharge signal input that the ear discharge signal output and the 100mW ear of audio mixing module put output module is connected, and the power amplifier signal output part of audio mixing module is connected with the power amplifier signal input part of 2 * 6W power amplifier output module; The RCA socket signal output part of audio mixing module is connected with the RCA socket signal input part of RCA socket signal output module; The JACK socket signal output part of audio mixing module is connected with the JACK socket signal input part of 6.35JACK socket signal output module, and the digital signal output end of musical instrument digital signal input module is connected with the digital signal input end of musical instrument digital signal input and output indicating module, and the digital signal input end of musical instrument digital signal output module is connected with the digital signal output end of musical instrument digital signal input and output indicating module; The index signal output of musical instrument digital signal input and output indicating module is connected with the index signal input of USB sound card; The index signal input of musical instrument digital signal input and output indicating module is connected with the index signal output of USB sound card, and the digital signal output end of audio digital signals input module is connected with the digital signal input end of USB sound card, and the digital signal input end of audio digital signals output module is connected with the digital signal output end of USB sound card.
2. multifunction microphone amplifier according to claim 1; It is characterized in that; This multifunction microphone amplifier also comprises input overload reminding module; The overload measurement signal output part of the first audio mixing module is connected with the first overload measurement signal input part of input overload reminding module, and the overload measurement signal output part of the second audio mixing module is connected with the second overload measurement signal input part of input overload reminding module.
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| CN201210160163.7A CN102740192B (en) | 2012-05-18 | 2012-05-18 | Multifunctional microphone amplifier |
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| CN201210160163.7A CN102740192B (en) | 2012-05-18 | 2012-05-18 | Multifunctional microphone amplifier |
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| CN102740192A true CN102740192A (en) | 2012-10-17 |
| CN102740192B CN102740192B (en) | 2015-04-01 |
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Cited By (1)
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| CN111901726A (en) * | 2020-07-29 | 2020-11-06 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
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| US20080170707A1 (en) * | 2007-01-17 | 2008-07-17 | Roland Corporation | Sound device |
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| US20030169890A1 (en) * | 2002-03-08 | 2003-09-11 | Olof Arvidsson | Audio receiving system |
| US20080170707A1 (en) * | 2007-01-17 | 2008-07-17 | Roland Corporation | Sound device |
| CN101150688A (en) * | 2007-11-05 | 2008-03-26 | 北京五科通力科技发展有限公司 | High-power digital power amplifier integrated system for digital film player |
| CN101202101A (en) * | 2007-11-27 | 2008-06-18 | 王祥贵 | Digital sound console and power amplifier integrated machine |
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| CN111901726B (en) * | 2020-07-29 | 2021-12-31 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
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| CN102740192B (en) | 2015-04-01 |
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Address after: 315175 Xiu Feng Village, Gaoqiao Town, Haishu District, Zhejiang, Ningbo Patentee after: Ningbo hit Electronic Technology Co., Ltd. Address before: 315175, No. 67, Feng Feng Road, Sau Feng Industrial Zone, Gaoqiao Town, Ningbo, Zhejiang, Yinzhou District Patentee before: Ningbo Yinzhou Alctron Electronics Co., Ltd. |