CN106024047A - Lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing) - Google Patents
Lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing) Download PDFInfo
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- CN106024047A CN106024047A CN201610326642.XA CN201610326642A CN106024047A CN 106024047 A CN106024047 A CN 106024047A CN 201610326642 A CN201610326642 A CN 201610326642A CN 106024047 A CN106024047 A CN 106024047A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/16—Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention relates to the technical field of electroacoustics, in particular to a lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing). The lossless and high-fidelity music playing and audio processor based on DSP comprises a control module, a lossless audio decoding module, a central processing unit, an audio processing module, an input/display module, an audio power amplifier and a user operation interface module, wherein the control module, the lossless audio decoding module, the audio processing module and the input/display module are connected with the central processing unit. With the adoption of a high-performance DSP technology, a high-quality lossless music file is played and subjected to sound effect processing at an original sampling rate, so that more automobile owners and passengers can have listening pleasure during driving; as for an externally connected sound source such as a radio and Bluetooth, externally simulated music input is subjected to DSP, and a user can have better music experience.
Description
Technical field
The present invention relates to electroacoustic techniques field, particularly relate to a kind of lossless hi-fi music based on DSP and play and audio process.
Background technology
Overwhelming majority vehicle-carrying music player can only play the file formats such as CD, MP3 and WMA at present；Frequency reducing or the process of frequency conversion has been carried out after major part lossless music player decoding.
Along with people's living standard improves and the development of memory technology, people are higher for the requirement of music, and the lossless music of high-quality is increasingly favored by more people.Existing overwhelming majority in-vehicle player does not possess the lossless music of high-fidelity, it is impossible to meet consumer demand.Existing lossless music player has carried out frequency reducing or frequency conversion, it is impossible to reduce tonequality well.
Summary of the invention
For defect or deficiency present in prior art, the technical problem to be solved is: provide a kind of lossless hi-fi music based on DSP to play and audio process, use high performance DSP technology, the lossless music file of high-quality is played out and audio effect processing with crude sampling rate, makes more automotive vehicle owner and passenger obtain the enjoyment of audition in driving.
To achieve these goals, the technical scheme that the present invention takes is play and audio process for providing a kind of lossless hi-fi music based on DSP, described lossless hi-fi music based on DSP is play and audio process includes control module, lossless audio decoding module, central processing unit, audio effect processing module, input display module, audio-frequency power amplifier and user interface module, described control module, described lossless audio decoding module, described audio effect processing module, described input display module be all connected with each other with described central processing unit, described control module is connected with described lossless audio decoding module, described lossless audio decoding module is connected with described audio effect processing module, described audio effect processing module is connected with described audio-frequency power amplifier；
Described control module, for switching each road audio frequency of input, carries out A/D conversion formation DAB to the simulated audio signal of input, the audio frequency of input is carried out Digital Signal Processing, then the audio after described audio effect processing resume module；For reading the lossless music file of USB and SD card, the file read is carried out file management, data parsing, it is decoded through described lossless music decoder module again, again through described audio effect processing resume module audio, after then being amplified by described audio-frequency power amplifier, obtain required audio；
Described input display module as user interface, indicate for Display System Function, module running status, parameter and user operation.
As a further improvement on the present invention, described control module include audio frequency simulation digital signal input interface module, described audio input interface module is used for connecting external audio signal input.
As a further improvement on the present invention, described external audio signal includes by bluetooth, radio reception, analogue audio frequency, the audio frequency of USB, SD card input.
As a further improvement on the present invention, described control module includes DSP digital signal processing module.
The invention has the beneficial effects as follows: the present invention uses high performance DSP technology, the lossless music file of high-quality is played out and audio effect processing with crude sampling rate, make more automotive vehicle owner and passenger obtain the enjoyment of audition in driving；For external source of sound, such as radio station, bluetooth, the input of external analog music carries out DSP process, allows user obtain preferably music experience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The present invention is further described for explanation and detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention provides a kind of lossless hi-fi music based on DSP to play and audio process, described lossless hi-fi music based on DSP is play and audio process includes control module, lossless audio decoding module, central processing unit, audio effect processing module, input display module, audio-frequency power amplifier and user interface module, described control module, described lossless audio decoding module, described audio effect processing module, described input display module be all connected with each other with described central processing unit, described control module is connected with described lossless audio decoding module, described lossless audio decoding module is connected with described audio effect processing module, described audio effect processing module is connected with described audio-frequency power amplifier；
Described control module, for switching each road audio frequency of input, carries out A/D conversion formation DAB to the simulated audio signal of input, the audio frequency of input is carried out Digital Signal Processing, then the audio after described audio effect processing resume module；For reading the lossless music file of USB and SD card, the file read is carried out file management, data parsing, then is decoded through described lossless music decoder module, then through described audio effect processing resume module audio.Then required audio is obtained after being amplified by described audio-frequency power amplifier；
Described input display module as user interface, indicate for Display System Function, module running status, parameter and user operation.
As it is shown in figure 1, described control module include audio frequency simulation digital signal input interface module, described audio input interface module is used for connecting external audio signal input.
As it is shown in figure 1, described external audio signal includes by bluetooth, radio reception, analogue audio frequency, the audio frequency of USB, SD card input.
As it is shown in figure 1, described control module includes DSP digital signal processing module.
We, by reading the lossless music file in USB2.0 equipment and SD card, use algorithm based on DSP, it is achieved not frequency reducing, do not carry out frequency conversion and are decoded high definition audio and Audio Processing.
DSP is for external source of sound input such as radio reception, bluetooth, and analogue audio frequency input carries out audio effect processing, repairs the loss of signal and signal phase defect that road conditions and internal car noise etc. cause, builds multiple audio environment, truly go back original sound in car.Make very thin clear, penetrating mellow, the rich full and natural of bass of middle pitch of high pitch.
Mobile phone interface is provided, carries out equalizer for user, high low-pass filtering, the wireless regulation of high bass reinforcement etc..
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert the present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. a lossless hi-fi music based on DSP is play and audio process, it is characterized in that: described lossless hi-fi music based on DSP is play and audio process includes control module, lossless audio decoding module, central processing unit, audio effect processing module, input display module, audio-frequency power amplifier and user interface module, described control module, described lossless audio decoding module, described audio effect processing module, described input display module be all connected with each other with described central processing unit, described control module is connected with described lossless audio decoding module, described lossless audio decoding module is connected with described audio effect processing module, described audio effect processing module is connected with described audio-frequency power amplifier；
Described control module, for switching each road audio frequency of input, carries out A/D conversion formation DAB to the simulated audio signal of input, the audio frequency of input is carried out Digital Signal Processing, then the audio after described audio effect processing resume module；For reading the lossless music file of USB and SD card, the file read is carried out file management, data parsing, it is decoded through described lossless music decoder module again, again through described audio effect processing resume module audio, after then being amplified by described audio-frequency power amplifier, obtain required audio；
Described input display module as user interface, indicate for Display System Function, module running status, parameter and user operation.
Lossless hi-fi music based on DSP the most according to claim 1 is play and audio process, it is characterized in that: described control module include audio frequency simulation digital signal input interface module, described audio input interface module is for connecting the input of external audio signal.
Lossless hi-fi music based on DSP the most according to claim 2 is play and audio process, it is characterised in that: described external audio signal includes by bluetooth, radio reception, analogue audio frequency, the audio frequency of USB, SD card input.
Lossless hi-fi music based on DSP the most according to claim 1 is play and audio process, it is characterised in that: described control module includes DSP digital signal processing module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248857 | 2016-04-20 | ||
| CN2016102488574 | 2016-04-20 |
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| CN106024047A true CN106024047A (en) | 2016-10-12 |
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| CN201610326642.XA Pending CN106024047A (en) | 2016-04-20 | 2016-05-17 | Lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391202A (en) * | 2018-02-27 | 2018-08-10 | 惠州市德赛西威汽车电子股份有限公司 | A kind of onboard audio dynamic sampling method and system |
| CN111093109A (en) * | 2018-10-24 | 2020-05-01 | 杭州海康威视数字技术股份有限公司 | Media data playing processing method and media playing equipment |
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| CN101958139A (en) * | 2010-08-10 | 2011-01-26 | 闫天时 | High definition lossless audio playing (HDAP) system |
| CN104581522A (en) * | 2013-10-24 | 2015-04-29 | 西安群丰电子信息科技有限公司 | High definition lossless audio playing system (HDAP) |
| CN205751532U (en) * | 2016-05-17 | 2016-11-30 | 深圳市聚视音科技有限公司 | A kind of lossless hi-fi music based on DSP is play and audio process |
-
2016
- 2016-05-17 CN CN201610326642.XA patent/CN106024047A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958139A (en) * | 2010-08-10 | 2011-01-26 | 闫天时 | High definition lossless audio playing (HDAP) system |
| CN104581522A (en) * | 2013-10-24 | 2015-04-29 | 西安群丰电子信息科技有限公司 | High definition lossless audio playing system (HDAP) |
| CN205751532U (en) * | 2016-05-17 | 2016-11-30 | 深圳市聚视音科技有限公司 | A kind of lossless hi-fi music based on DSP is play and audio process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391202A (en) * | 2018-02-27 | 2018-08-10 | 惠州市德赛西威汽车电子股份有限公司 | A kind of onboard audio dynamic sampling method and system |
| CN111093109A (en) * | 2018-10-24 | 2020-05-01 | 杭州海康威视数字技术股份有限公司 | Media data playing processing method and media playing equipment |
| CN111093109B (en) * | 2018-10-24 | 2022-07-29 | 杭州海康威视数字技术股份有限公司 | Media data playing processing method and media playing equipment |
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Application publication date: 20161012 |
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