CN205751532U - A kind of lossless hi-fi music based on DSP is play and audio process - Google Patents
A kind of lossless hi-fi music based on DSP is play and audio process Download PDFInfo
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- CN205751532U CN205751532U CN201620448555.7U CN201620448555U CN205751532U CN 205751532 U CN205751532 U CN 205751532U CN 201620448555 U CN201620448555 U CN 201620448555U CN 205751532 U CN205751532 U CN 205751532U
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Abstract
This utility model relates to electroacoustic techniques field, particularly relates to a kind of lossless hi-fi music based on DSP and plays and audio process.This utility model provides a kind of lossless hi-fi music based on DSP to play and audio process, including 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.This utility model uses high performance DSP technology, plays out the lossless music file of high-quality and audio effect processing with crude sampling rate, makes 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.
Description
Technical field
This utility model relates to electroacoustic techniques field, particularly relates to a kind of lossless hi-fi music based on DSP and plays 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.
Utility model content
For defect or deficiency present in prior art, technical problem to be solved in the utility model 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 this utility model is taked 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 further improvement of the utility model, 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 further improvement of the utility model, described external audio signal includes by bluetooth, radio reception, analogue audio frequency, the audio frequency of USB, SD card input.
As further improvement of the utility model, described control module includes DSP digital signal processing module.
The beneficial effects of the utility model are: this utility model uses high performance DSP technology, plays out the lossless music file of high-quality and audio effect processing with crude sampling rate, makes 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 structural representation of the present utility model.
Detailed description of the invention
This utility model is further illustrated by explanation and detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1, this utility model 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 detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
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.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448555.7U CN205751532U (en) | 2016-05-17 | 2016-05-17 | A kind of lossless hi-fi music based on DSP is play and audio process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620448555.7U CN205751532U (en) | 2016-05-17 | 2016-05-17 | A kind of lossless hi-fi music based on DSP is play and audio process |
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| CN205751532U true CN205751532U (en) | 2016-11-30 |
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| CN201620448555.7U Active CN205751532U (en) | 2016-05-17 | 2016-05-17 | A kind of lossless hi-fi music based on DSP is play and audio process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024047A (en) * | 2016-04-20 | 2016-10-12 | 深圳市聚视音科技有限公司 | Lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing) |
| CN110913379A (en) * | 2019-10-15 | 2020-03-24 | 上海思致汽车工程技术有限公司 | Vehicle-mounted multifunctional acoustic system |
-
2016
- 2016-05-17 CN CN201620448555.7U patent/CN205751532U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024047A (en) * | 2016-04-20 | 2016-10-12 | 深圳市聚视音科技有限公司 | Lossless and high-fidelity music playing and audio processor based on DSP (digital signal processing) |
| CN110913379A (en) * | 2019-10-15 | 2020-03-24 | 上海思致汽车工程技术有限公司 | Vehicle-mounted multifunctional acoustic system |
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