CN104883641A - Mobile terminal of realizing high fidelity music play - Google Patents
Mobile terminal of realizing high fidelity music play Download PDFInfo
- Publication number
- CN104883641A CN104883641A CN201410073633.5A CN201410073633A CN104883641A CN 104883641 A CN104883641 A CN 104883641A CN 201410073633 A CN201410073633 A CN 201410073633A CN 104883641 A CN104883641 A CN 104883641A
- Authority
- CN
- China
- Prior art keywords
- processor
- digital
- mobile terminal
- music
- analog converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Telephone Function (AREA)
Abstract
The invention relates to the mobile terminal technical field, especially a mobile terminal of realizing high fidelity music play. The mobile terminal comprises a processor, a memory and a power amplification apparatus, and also comprises a digital analog converter and a clock generation and distribution apparatus. The processor comprises an application processor or a digital signal processor; the processor reads music source files in the memory, and performs audio frequency decoding on the music source files to obtain digit audio signals; the digital analog converter receives the digit audio signals and performs digital analog conversion to obtain simulation audio signals; the power amplification apparatus is used for amplifying and outputting the simulation audio signals; the clock generation and distribution apparatus provides a synchronous clock for the processor and the digital analog converter. The mobile terminal possesses the characteristics of high fidelity music play timbre and low cost.
Description
Technical field:
The present invention relates to technical field of mobile terminals, particularly relate to a kind of mobile terminal realizing hi-fi music and play.
Background technology:
Along with the quickening of modern life rhythm and the loaded down with trivial details of routine matter, the pressure of modern day user also increases gradually, user can temporarily detach out by music from busy work, study, body and mind is releived, become a kind of good medicine of decompression, but existing music player devices there are many deficiencies:
1. as CD-audio player, Blu-ray player etc., its music source file stores in an optical disc, drives high power acoustics work after decoding by power amplifier, and because this type of equipment build is comparatively large, usually comparatively heavy, portability is poor;
2. as common MP3 player, store source of sound by flash memories, controller controls that source of sound is transferred to decoder and decodes, amplify rear drive earphone by Earphone Amplifier, human-computer interaction interface is simple, makes complicated operation, meanwhile, such player tonequality is poor, operation low-response;
3., as the high-end music player devices of fever level, affect by technical limitations and the cost of raw material, often price is high, and the consumer of limited fund cannot reach, and audient face is little.
Summary of the invention:
The object of the present invention is to provide a kind of mobile terminal realizing hi-fi music and play.It has the music tonequality of high-fidelity, with low cost.
A kind of technical scheme realizing the mobile terminal that hi-fi music is play of the present invention is achieved in that
A kind of mobile terminal realizing hi-fi music and play, it comprises a processor, one memory and a power amplifier device, it is characterized in that: it also comprises a digital to analog converter and a clock generating and distributor, described processor comprises an application processor or a digital signal processor, described processor reads the music source file in memory and carries out audio decoder to music source file and obtains digital audio and video signals, described digital to analog converter receives described digital audio and video signals, line number of going forward side by side mode convertion is to obtain simulated audio signal, power amplifier device is used for amplifying described simulated audio signal and exporting, described clock generating and distributor provide synchronised clock for processor and digital to analog converter.
Of the present invention a kind of realize hi-fi music play mobile terminal compared with prior art tool have the following advantages:
The hi-fi music system integration is inner to mobile terminal 1., while meeting music playing system miniaturization, improving its portability, enhance the acoustical quality of mobile terminal, improve user's experience, reduce the cost of high-fidelity playback equipment;
2. solve the SRC of processor and the problem of system clock shake, clock is provided by clock generating and distributor, processor and digital to analog converter are as from equipment, the clock frequency of suitable various sample rate is exported by inner frequency division, frequency multiplication operation, when making to play music, transmission between processor and digital to analog converter does not need through any SRC process, ensures the music performance of high-quality;
3. along with the fast development of mobile terminal, the operation ease of the mobile terminal of various intelligence operating system and intellectuality are higher than existing hi-fi music playback equipment, hi-fi system is combined with mobile terminal, the operation to music is realized by abundant function panel, enhance the user-centered interface of hi-fi system, improve its ease for use.
Processor described above also comprises an interface switching device, music source file transform is pcm stream by described application processor or digital signal processor, and pcm stream is converted to the data format of the receivable digital audio and video signals of digital to analog converter by described interface switching device.
Pcm stream is converted to and comprises I by interface switching device described above
2s is at the data format of interior digital audio and video signals.
Mobile terminal described above also comprises a change over switch, processor also comprises a built-in coder and an amplifier, described pcm stream carries out Data Format Transform by interface switching device, digital to analog converter carries out digital-to-analogue conversion and output after power amplifier device amplifies, or described pcm stream carries out digital-to-analogue conversion by the coder that processor is built-in and directly exports after amplifier amplifies, change over switch is for selecting the way of output of audio signal.The aforementioned described way of output of carrying out digital-to-analogue conversion by digital to analog converter is hi-fi music play mode, aftermentioned described be common music play mode by the way of output of built-in coder, hi-fi music play mode has the advantages that tonequality is good, power consumption is large, common music play mode has the advantages that tonequality is slightly poor, power consumption is less, realize the seamless switching between two kinds of different play mode by change over switch, the music demand of different crowd in different occasion can be met.
Clock generating described above and distributor comprise one for providing the crystal oscillator of clock reference and for providing the main equipment of synchronised clock to processor and digital to analog converter.
Mobile terminal described above also comprises a power supply, and described power supply comprises a DC chopper and a low pressure difference linear voltage regulator.Described power supply is each module for power supply of mobile terminal.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described in detail:
Fig. 1 is a kind of simplified structure block diagram realizing the mobile terminal that hi-fi music is play of the present invention;
Fig. 2 is a kind of structured flowchart realizing the mobile terminal that hi-fi music is play of the present invention.
Embodiment:
As depicted in figs. 1 and 2, a kind of mobile terminal realizing hi-fi music and play, it comprises a processor 3, one memory 2 and a power amplifier device 7, it also comprises a digital to analog converter 6 and a clock generating and distributor, described processor 3 comprises an application processor or a digital signal processor, described processor 3 reads the music source file of in memory 2 and carries out audio decoder to music source file and obtain digital audio and video signals, described digital to analog converter 6 receives described digital audio and video signals, line number of going forward side by side mode convertion is to obtain simulated audio signal, power amplifier device 7 is for amplifying described simulated audio signal and exporting, described clock generating and distributor provide synchronised clock for processor 3 and digital to analog converter 6.
Described simulated audio signal may be output to earphone interface or the loud speaker of mobile terminal after power amplifier device amplifies, and user is by wear headphones or directly use loud speaker music appreciating.
Described processor 3 also comprises an interface switching device, music source file transform is pcm stream by described application processor or digital signal processor, and pcm stream is converted to the data format of the receivable digital audio and video signals of digital to analog converter 6 by described interface switching device.
Pcm stream is converted to and comprises I by described interface switching device
2s is at the data format of interior digital audio and video signals.
Described mobile terminal also comprises a change over switch 8, processor 3 also comprises a built-in coder and an amplifier, described pcm stream carries out Data Format Transform by interface switching device, digital to analog converter carries out digital-to-analogue conversion and output after power amplifier device amplifies, or described pcm stream carries out digital-to-analogue conversion by the coder that processor 3 is built-in and directly exports after amplifier amplifies, change over switch 7 is for selecting the way of output of audio signal.The aforementioned described way of output of carrying out digital-to-analogue conversion by digital to analog converter 6 is hi-fi music play mode, aftermentioned described be common music play mode by the way of output of built-in coder, hi-fi music play mode has the advantages that tonequality is good, power consumption is large, common music play mode has the advantages that tonequality is slightly poor, power consumption is less, realize the seamless switching between two kinds of different play mode by change over switch, the music demand of different crowd in different occasion can be met.
Described clock generating and distributor comprise one for providing the crystal oscillator 5 and of clock reference for providing the main equipment 4 of synchronised clock to processor and digital to analog converter.Described main equipment 4 can be can any device of output clock, includes but not limited to ADC, PLL, FLL, FPGA etc.
Described digital to analog converter 6 can be ES9018, CS4398 etc.
Described power amplifier device 7 can be the operational amplifier (as OPA2604, AD8260 etc.) that output current is larger, professional earphone power amplifier (as U.S. letter MAX97220) or the combination of the two.
Described mobile terminal also comprises a power supply 1, and power supply 1 comprises a DC chopper and a low pressure difference linear voltage regulator.Described power supply 1 is each module for power supply of mobile terminal.Above content is in conjunction with specific embodiments to further description of the present invention, can not regard as specific embodiment and be confined to these explanations.As: as described in digital to analog converter, power amplifier device, main equipment be not limited only to type disclosed in specific embodiment or model, as described in the data format of the receivable digital audio and video signals of digital to analog converter be not limited only to I
2s etc.For those skilled in the art; without departing from the inventive concept of the premise; the specific embodiment of the present invention is not limited to above-mentioned example; in specific embodiment of the invention process; embodiment can also make some deductions or optimization, and these are deduced or optimize and all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the mobile terminal realizing hi-fi music and play, it comprises a processor, one memory and a power amplifier device, it is characterized in that: it also comprises a digital to analog converter and a clock generating and distributor, described processor comprises an application processor or a digital signal processor, described processor reads the music source file in memory and carries out audio decoder to music source file and obtains digital audio and video signals, described digital to analog converter receives described digital audio and video signals, line number of going forward side by side mode convertion is to obtain simulated audio signal, power amplifier device is used for amplifying described simulated audio signal and exporting, described clock generating and distributor provide synchronised clock for processor and digital to analog converter.
2. a kind of mobile terminal realizing hi-fi music and play according to claim 1, it is characterized in that: described processor also comprises an interface switching device, music source file transform is pcm stream by described application processor or digital signal processor, and pcm stream is converted to the data format of the receivable digital audio and video signals of digital to analog converter by described interface switching device.
3. a kind of mobile terminal realizing hi-fi music and play according to claim 2, is characterized in that: pcm stream is converted to and comprises I by described interface switching device
2s is at the data format of interior digital audio and video signals.
4. a kind of mobile terminal realizing hi-fi music and play according to Claims 2 or 3, it is characterized in that: described mobile terminal also comprises a change over switch, processor also comprises a built-in coder and an amplifier, described pcm stream carries out Data Format Transform by interface switching device, digital to analog converter carries out digital-to-analogue conversion and exports after power amplifier device amplifies, or described pcm stream carries out digital-to-analogue conversion by the coder that processor is built-in and directly exports after amplifier amplifies, change over switch is for selecting the way of output of audio signal.
5. a kind of mobile terminal realizing hi-fi music and play according to claim 4, is characterized in that: described clock generating and distributor comprise one for providing the crystal oscillator of clock reference and for providing the main equipment of synchronised clock to processor and digital to analog converter.
6. a kind of mobile terminal realizing hi-fi music and play according to claim 4, it is characterized in that: described mobile terminal also comprises a power supply, described power supply comprises a DC chopper and a low pressure difference linear voltage regulator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073633.5A CN104883641A (en) | 2014-02-28 | 2014-02-28 | Mobile terminal of realizing high fidelity music play |
| PCT/CN2015/070374 WO2015127832A1 (en) | 2014-02-28 | 2015-01-08 | Mobile terminal for realizing high-fidelity music playback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073633.5A CN104883641A (en) | 2014-02-28 | 2014-02-28 | Mobile terminal of realizing high fidelity music play |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104883641A true CN104883641A (en) | 2015-09-02 |
Family
ID=53950946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410073633.5A Pending CN104883641A (en) | 2014-02-28 | 2014-02-28 | Mobile terminal of realizing high fidelity music play |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104883641A (en) |
| WO (1) | WO2015127832A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847323A (en) * | 2017-03-22 | 2017-06-13 | 广州酷狗计算机科技有限公司 | A kind of audio-frequence player device |
| CN107705794A (en) * | 2017-09-08 | 2018-02-16 | 崔巍 | Intensified multifunction digital audio frequency decoder |
| CN108319443A (en) * | 2018-01-26 | 2018-07-24 | 维沃移动通信有限公司 | A kind of audio-frequency inputting method, mobile terminal and audio playing apparatus |
| CN110267247A (en) * | 2019-06-25 | 2019-09-20 | 深圳市舟海科技有限公司 | A kind of bluetooth BLE audio transmission music wearing terminal |
| CN111464917A (en) * | 2017-04-28 | 2020-07-28 | 华为技术有限公司 | POP sound suppression method, audio output circuit and terminal |
| CN112235692A (en) * | 2020-10-15 | 2021-01-15 | 维沃移动通信有限公司 | Audio switching circuit, electronic equipment and audio switching method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113115172B (en) * | 2021-03-10 | 2022-12-06 | 亿咖通(湖北)技术有限公司 | Method and system for optimizing diversified audio scenes of whole vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0271689A (en) * | 1988-09-07 | 1990-03-12 | Hitachi Ltd | High definition video disk player |
| CN101854705A (en) * | 2009-03-30 | 2010-10-06 | 联想(北京)有限公司 | Audio switching method, audio switching device, audio codec and terminal device |
| CN101958139A (en) * | 2010-08-10 | 2011-01-26 | 闫天时 | High definition lossless audio playing (HDAP) system |
| CN102047592A (en) * | 2008-05-27 | 2011-05-04 | 索尼爱立信移动通讯有限公司 | Apparatus and methods for time synchronization of wireless audio data streams |
| CN201945917U (en) * | 2011-01-13 | 2011-08-24 | 无锡硅动力微电子股份有限公司 | USB (Universal Serial Bus) sound card adopting single 12 MHz crystal oscillator |
| CN202352338U (en) * | 2011-11-14 | 2012-07-25 | 北京经纬恒润科技有限公司 | Vehicular sound system |
| CN102708082A (en) * | 2012-05-09 | 2012-10-03 | 福兴达科技实业（深圳）有限公司 | Method for playing high-fidelity music through mobile terminal, and mobile terminal for same |
| CN102761819A (en) * | 2012-07-24 | 2012-10-31 | 国光电器股份有限公司 | Multi-channel audio output system and method |
| CN102915757A (en) * | 2011-08-06 | 2013-02-06 | 闫天时 | Lossless digital audio player based on CPU (central processing unit) platform |
| CN202887710U (en) * | 2012-11-01 | 2013-04-17 | 曾敬 | Intelligent voice noting device |
| CN103258563A (en) * | 2012-02-15 | 2013-08-21 | 珠海德百祺科技有限公司 | Mobile terminal and music player used for the same |
-
2014
- 2014-02-28 CN CN201410073633.5A patent/CN104883641A/en active Pending
-
2015
- 2015-01-08 WO PCT/CN2015/070374 patent/WO2015127832A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0271689A (en) * | 1988-09-07 | 1990-03-12 | Hitachi Ltd | High definition video disk player |
| CN102047592A (en) * | 2008-05-27 | 2011-05-04 | 索尼爱立信移动通讯有限公司 | Apparatus and methods for time synchronization of wireless audio data streams |
| CN101854705A (en) * | 2009-03-30 | 2010-10-06 | 联想(北京)有限公司 | Audio switching method, audio switching device, audio codec and terminal device |
| CN101958139A (en) * | 2010-08-10 | 2011-01-26 | 闫天时 | High definition lossless audio playing (HDAP) system |
| CN201945917U (en) * | 2011-01-13 | 2011-08-24 | 无锡硅动力微电子股份有限公司 | USB (Universal Serial Bus) sound card adopting single 12 MHz crystal oscillator |
| CN102915757A (en) * | 2011-08-06 | 2013-02-06 | 闫天时 | Lossless digital audio player based on CPU (central processing unit) platform |
| CN202352338U (en) * | 2011-11-14 | 2012-07-25 | 北京经纬恒润科技有限公司 | Vehicular sound system |
| CN103258563A (en) * | 2012-02-15 | 2013-08-21 | 珠海德百祺科技有限公司 | Mobile terminal and music player used for the same |
| CN102708082A (en) * | 2012-05-09 | 2012-10-03 | 福兴达科技实业（深圳）有限公司 | Method for playing high-fidelity music through mobile terminal, and mobile terminal for same |
| CN102761819A (en) * | 2012-07-24 | 2012-10-31 | 国光电器股份有限公司 | Multi-channel audio output system and method |
| CN202887710U (en) * | 2012-11-01 | 2013-04-17 | 曾敬 | Intelligent voice noting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847323A (en) * | 2017-03-22 | 2017-06-13 | 广州酷狗计算机科技有限公司 | A kind of audio-frequence player device |
| CN106847323B (en) * | 2017-03-22 | 2023-11-24 | 广州酷狗计算机科技有限公司 | Audio playing equipment |
| CN111464917A (en) * | 2017-04-28 | 2020-07-28 | 华为技术有限公司 | POP sound suppression method, audio output circuit and terminal |
| CN107705794A (en) * | 2017-09-08 | 2018-02-16 | 崔巍 | Intensified multifunction digital audio frequency decoder |
| CN107705794B (en) * | 2017-09-08 | 2023-09-26 | 崔巍 | Enhanced multifunctional digital audio decoder |
| CN108319443A (en) * | 2018-01-26 | 2018-07-24 | 维沃移动通信有限公司 | A kind of audio-frequency inputting method, mobile terminal and audio playing apparatus |
| CN108319443B (en) * | 2018-01-26 | 2020-01-31 | 维沃移动通信有限公司 | audio output method, mobile terminal and audio playing device |
| CN110267247A (en) * | 2019-06-25 | 2019-09-20 | 深圳市舟海科技有限公司 | A kind of bluetooth BLE audio transmission music wearing terminal |
| CN112235692A (en) * | 2020-10-15 | 2021-01-15 | 维沃移动通信有限公司 | Audio switching circuit, electronic equipment and audio switching method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015127832A1 (en) | 2015-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104883641A (en) | Mobile terminal of realizing high fidelity music play | |
| US10652681B2 (en) | Processing method and system of audio multichannel output speaker, and mobile phone | |
| WO2019062541A1 (en) | Real-time digital audio signal mixing method and device | |
| CN101958139A (en) | High definition lossless audio playing (HDAP) system | |
| CN105704598A (en) | Singing earphone | |
| JP2019015951A (en) | Wake up method for electronic device, apparatus, device and computer readable storage medium | |
| CN106941643B (en) | A kind of multi-functional intelligent sound control method of set | |
| CN101789258B (en) | Vehicle-mounted DVD (Digital Video Disk) navigation and video-audio device adopting purely digital audio processing | |
| CN218514491U (en) | 100W to 150W power level mobile sound | |
| CN204066744U (en) | A kind of MP3 music player | |
| US10680640B2 (en) | Power-saving current-mode digital-to-analog converter (DAC) | |
| CN211654305U (en) | Digital audio control system | |
| CN204948314U (en) | A kind of repeater and bluetooth HIFI earphone being applicable to earphone | |
| CN107705794A (en) | Intensified multifunction digital audio frequency decoder | |
| CN103943123B (en) | A kind of acousto-optic-electric is listened and is sung the integrated entertainment systems of dance | |
| CN109565261B (en) | Power supply circuit and audio playing device | |
| CN204090111U (en) | The pneumatic type height figure sound system of modular DSP digital technology adjustment | |
| CN103258563A (en) | Mobile terminal and music player used for the same | |
| CN204090116U (en) | Multifunctional sound box | |
| CN213485155U (en) | Sound production device based on active electronic frequency division | |
| CN203192414U (en) | Bluetooth recording pen | |
| CN208061183U (en) | A kind of mobile phone back splint HIFI systems | |
| CN201976227U (en) | Novel multifunctional sound box | |
| CN202503630U (en) | USB speaker playing device | |
| CN221381170U (en) | High-fidelity sound source switcher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150902 |
|
| RJ01 | Rejection of invention patent application after publication |