CN104243695A - Intelligent sound volume adjusting circuit based on numerical control - Google Patents
Intelligent sound volume adjusting circuit based on numerical control Download PDFInfo
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- CN104243695A CN104243695A CN201410427426.5A CN201410427426A CN104243695A CN 104243695 A CN104243695 A CN 104243695A CN 201410427426 A CN201410427426 A CN 201410427426A CN 104243695 A CN104243695 A CN 104243695A
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- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 23
- 238000010295 mobile communication Methods 0.000 claims abstract description 11
- 230000005236 sound signal Effects 0.000 abstract description 14
- 230000015654 memory Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
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Abstract
The invention provides an intelligent sound volume adjusting circuit based on numerical control. The intelligent sound volume adjusting circuit based on numerical control comprises an audio input device and an audio output device. The audio input device is connected to a loudspeaker through a first audio amplification circuit, the loudspeaker is used for outputting received voice signals of another terminal device to users, the audio output device is used for receiving voice signals of the users and uploading the voice signals of the users to a mobile communication network through a second video amplification circuit, and the voice signals of the users are transmitted to the other terminal device through the mobile communication network. According to the intelligent sound volume adjusting circuit based on numerical control, power compensation is conducted on the audio signals input in the audio input device and the audio signals output by the audio output device through a compensation circuit, the sound volume of the input audio signals and the sound volume of the output audio signals are automatically adjusted according to the sound volume difference value of the received audio signals and the output audio signals, and the users feel comfortable in the conversation experience. Furthermore, sound volume keys can be omitted, and the compactness and the attractiveness of the mobile phones can be further improved.
Description
Technical field
The present invention relates to electronic applications, refer to a kind of based on numerically controlled volume Intelligent adjustment circuit especially.
Background technology
Existing mobile phone is divided into smart mobile phone and non intelligent mobile phone, no matter be smart mobile phone or non intelligent mobile phone, the control of its volume mainly manually realizes the adjustment of volume, smart mobile phone realizes volume adjusting by real key or touch-screen virtual key, non intelligent mobile phone regulates volume by real key, at present, the mobile phone of automatic regulating volume is not also had to occur.
Summary of the invention
The present invention proposes a kind of based on numerically controlled volume Intelligent adjustment circuit, solves the problem being realized volume adjusting in prior art by button.
Technical scheme of the present invention is achieved in that
A kind of based on numerically controlled volume Intelligent adjustment circuit, comprise: voice input device and audio output device, described voice input device is connected to loud speaker by the first audio amplifier circuit, loud speaker exports the voice signal of another terminal equipment received to user, audio output device receives the voice signal of user and it is uploaded to mobile communications network by the second audio amplifier circuit, another terminal equipment is transferred to by mobile communications network
Described voice input device is also connected to the first sample circuit, and the first sample circuit gathers the volume value of voice input device and is converted into corresponding first magnitude of voltage;
Described audio output device is connected to the second sample circuit, and the second sample circuit gathers the volume value of audio output device and is converted into corresponding second magnitude of voltage;
First magnitude of voltage is compared with the second magnitude of voltage by operational amplification circuit, and operational amplification circuit exports the difference voltage of the first magnitude of voltage and the second magnitude of voltage;
Selection circuit, be connected to the output of described operational amplification circuit and receive described difference voltage, the output of selection circuit is two, first output is connected to the negative electrode of the first diode, the anode of the first diode is connected to the output of operational amplification circuit, and the second output is connected to the anode of the second diode, and the negative electrode of the second diode is connected to operational amplification circuit, first output exports on the occasion of voltage, and the second output exports negative voltage;
First compensating circuit and the second compensating circuit are on-off controller, first compensating circuit be connected to described selection circuit on the occasion of voltage output end, second compensating circuit is connected to the negative voltage output of described selection circuit, the pulse signal adjustable according to described difference voltage output duty cycle, control turning on and off of the first audio amplifier circuit and the second audio amplifier circuit breaker in middle pipe respectively, regulation output is to the power of loud speaker and mobile communications network;
Described first sample circuit, the second sample circuit, operational amplification circuit, the first compensating circuit and the second compensating circuit are by DSP circuit realiration, described DSP circuit is TMS320DM642 chip, builds described first sample circuit, the second sample circuit, operational amplification circuit and the first compensating circuit by programming in dsp chip inside.
The invention has the beneficial effects as follows:
By compensating circuit, power back-off is carried out to the audio signal that the audio signal and audio output device that are input to voice input device export, automatically the volume of input and output audio signal is regulated according to the volume difference of the audio signal received and export, the call of user is experienced comfortable, and the setting of volume key can be omitted, improve compactedness and the aesthetic property of mobile phone further.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the control block diagram that the present invention is based on numerically controlled volume Intelligent adjustment circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, of the present invention based on numerically controlled volume Intelligent adjustment circuit, comprise: voice input device 100 and audio output device 400, described voice input device is connected to loud speaker 800 by the first audio amplifier circuit 700, loud speaker exports the voice signal of another terminal equipment received to user, audio output device 400 receives the voice signal of user and it is uploaded to mobile communications network 810 by the second audio amplifier circuit 710, is transferred to another terminal equipment by mobile communications network.
Described voice input device is also connected to the first sample circuit 200, first sample circuit and gathers the volume value of voice input device and be converted into corresponding first magnitude of voltage; Described audio output device is connected to the second sample circuit 300, second sample circuit and gathers the volume value of audio output device and be converted into corresponding second magnitude of voltage.
First magnitude of voltage is compared with the second magnitude of voltage by operational amplification circuit 500, and output difference threshold voltage.Selection circuit 510, be connected to the output of described operational amplification circuit and receive described difference voltage, the output of selection circuit is two, first output is connected to the negative electrode of the first diode 511, the anode of the first diode is connected to the output of operational amplification circuit, and the second output is connected to the anode of the second diode 512, and the negative electrode of the second diode is connected to operational amplification circuit, first output exports on the occasion of voltage, and the second output exports negative voltage.
First compensating circuit 600 and the second compensating circuit 610 are on-off controller, first compensating circuit be connected to described selection circuit on the occasion of voltage output end, second compensating circuit is connected to the negative voltage output of described selection circuit, the pulse signal adjustable according to described difference voltage output duty cycle, control turning on and off of the first audio amplifier circuit 700 and the second audio amplifier circuit 710 breaker in middle pipe respectively, regulation output is to the power of loud speaker and mobile communications network.
Described first sample circuit, second sample circuit, operational amplification circuit, first compensating circuit and the second compensating circuit can be realized by discrete form, also can be realized by integrated form, discrete form and described first sample circuit, second sample circuit, operational amplification circuit, first compensating circuit and the second compensating circuit are realized by multiple discrete chip and peripheral component thereof, namely integrated form sets up described first sample circuit by the programming of DSP circuit in dsp chip inside, second sample circuit, operational amplification circuit, first compensating circuit and the second compensating circuit, described DSP circuit is TMS320DM642 chip.
TMS320DM642 is fixed DSP up-to-date in TI company C6000 series DSP, its core is C6416 type high-performance digital signal processor, there is extremely strong handling property, the flexibility of height and programmability, periphery is integrated with equipment and the interfaces such as very complete audio frequency, video and network service simultaneously.
TMS320DM642 chip comprises: 3 configurable video ports (VPORT0-2) can realize seamless link with general video coding and decoding device, support various video resolution and video standard, support RAW video input/output, transport stream mode; 1 10/100Mb/s Ethernet interface (EMAC), meets IEEE 802.3 standard; 1 multichannel band buffered audio serial port (McASP), supports the audio format such as I2S, DIT, S/PDIF, IEC60958-1, AES-3, CP-430; 2 multichannel band Buffered Serial Port (McBSP), adopt RS232 level to drive; 1 VCXO interpolation control unit (VIC), supports that audio/video is synchronous; 1 32,66M hertz, the master/slave pci interface of 3.3V, follow PCI2.2 specification; 1 configurable 16/32 host interface (HPI) of user; 1 16 general input/output port (GPIO); 1 64 external memory interfaces (EMIF), can with most of asynchronous memory (SRAM, EPROM) and synchronous memories (SDRAM, SBSRAM, ZBT SRAM, FIFO) seamless link, maximum addressable external memory storage space is 1024MB; 1 enhancement mode direct memory access controller (EDMA) with 64 autonomous channels, tunnel; 1 data management input/output module (MDIO); 1 I2C bus module; 3 32 general purpose timers; 1 jtag interface and daughterboard interface etc. meeting IEEE 1149.1 standard.
The present invention carries out power back-off by compensating circuit to the audio signal that the audio signal and audio output device that are input to voice input device export, automatically the volume of input and output audio signal is regulated according to the volume difference of the audio signal received and export, the call of user is experienced comfortable, and the setting of volume key can be omitted, improve compactedness and the aesthetic property of mobile phone further.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. one kind based on numerically controlled volume Intelligent adjustment circuit, comprise: voice input device and audio output device, described voice input device is connected to loud speaker by the first audio amplifier circuit, loud speaker exports the voice signal of another terminal equipment received to user, audio output device receives the voice signal of user and it is uploaded to mobile communications network by the second audio amplifier circuit, be transferred to another terminal equipment by mobile communications network, it is characterized in that
Described voice input device is also connected to the first sample circuit, and the first sample circuit gathers the volume value of voice input device and is converted into corresponding first magnitude of voltage;
Described audio output device is connected to the second sample circuit, and the second sample circuit gathers the volume value of audio output device and is converted into corresponding second magnitude of voltage;
First magnitude of voltage is compared with the second magnitude of voltage by operational amplification circuit, and operational amplification circuit exports the difference voltage of the first magnitude of voltage and the second magnitude of voltage;
Selection circuit, be connected to the output of described operational amplification circuit and receive described difference voltage, the output of selection circuit is two, first output is connected to the negative electrode of the first diode, the anode of the first diode is connected to the output of operational amplification circuit, and the second output is connected to the anode of the second diode, and the negative electrode of the second diode is connected to operational amplification circuit, first output exports on the occasion of voltage, and the second output exports negative voltage;
First compensating circuit and the second compensating circuit are on-off controller, first compensating circuit be connected to described selection circuit on the occasion of voltage output end, second compensating circuit is connected to the negative voltage output of described selection circuit, the pulse signal adjustable according to described difference voltage output duty cycle, control turning on and off of the first audio amplifier circuit and the second audio amplifier circuit breaker in middle pipe respectively, regulation output is to the power of loud speaker and mobile communications network;
Described first sample circuit, the second sample circuit, operational amplification circuit, the first compensating circuit and the second compensating circuit are by DSP circuit realiration, described DSP circuit is TMS320DM642 chip, builds described first sample circuit, the second sample circuit, operational amplification circuit and the first compensating circuit by programming in dsp chip inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427426.5A CN104243695A (en) | 2014-08-27 | 2014-08-27 | Intelligent sound volume adjusting circuit based on numerical control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410427426.5A CN104243695A (en) | 2014-08-27 | 2014-08-27 | Intelligent sound volume adjusting circuit based on numerical control |
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| CN201410427426.5A Pending CN104243695A (en) | 2014-08-27 | 2014-08-27 | Intelligent sound volume adjusting circuit based on numerical control |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206985A (en) * | 1997-06-11 | 1999-02-03 | Lg电子株式会社 | Method and device for automatic compensating sound volume |
| WO2000059110A2 (en) * | 1999-03-30 | 2000-10-05 | Qualcomm Incorporated | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone |
| CN1684509A (en) * | 2004-04-13 | 2005-10-19 | 乐金电子（沈阳）有限公司 | Audio frequency processing device and method for digital TV set |
| CN101409807A (en) * | 2008-11-03 | 2009-04-15 | 康佳集团股份有限公司 | Intelligent control method for television volume |
| CN104158939A (en) * | 2014-08-19 | 2014-11-19 | 青岛盛嘉信息科技有限公司 | Audio regulating circuit based on DSP (Digital Signal Processor) control |
-
2014
- 2014-08-27 CN CN201410427426.5A patent/CN104243695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206985A (en) * | 1997-06-11 | 1999-02-03 | Lg电子株式会社 | Method and device for automatic compensating sound volume |
| WO2000059110A2 (en) * | 1999-03-30 | 2000-10-05 | Qualcomm Incorporated | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone |
| CN1684509A (en) * | 2004-04-13 | 2005-10-19 | 乐金电子（沈阳）有限公司 | Audio frequency processing device and method for digital TV set |
| CN101409807A (en) * | 2008-11-03 | 2009-04-15 | 康佳集团股份有限公司 | Intelligent control method for television volume |
| CN104158939A (en) * | 2014-08-19 | 2014-11-19 | 青岛盛嘉信息科技有限公司 | Audio regulating circuit based on DSP (Digital Signal Processor) control |
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