CN110400581A - The system that the timing of player plays audio file - Google Patents
The system that the timing of player plays audio file Download PDFInfo
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- CN110400581A CN110400581A CN201910684334.8A CN201910684334A CN110400581A CN 110400581 A CN110400581 A CN 110400581A CN 201910684334 A CN201910684334 A CN 201910684334A CN 110400581 A CN110400581 A CN 110400581A
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- Prior art keywords
- audio
- unit
- main control
- audio file
- timing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
Abstract
The embodiment of the invention discloses the systems that a kind of timing of player plays audio file, comprising: main control unit, audio decoding unit, D/A conversion unit, timer unit, audio peripheral storage device；The main control unit is connect with the audio decoding unit, timer unit；The audio decoding unit is connect with the AD conversion unit；The timer unit is connect with the main control unit；The audio peripheral storage device is connect with the main control unit.The present invention has logic simple, and timing play function is complete, at low cost, produces suitable for product batch, makees timing using DS1302 chip, has timing quasi-, high reliablity advantage solves the problems, such as that software timing uncertainty is true.
Description
Technical field
The present invention relates to audio play-back technology field, the system of the timing broadcasting audio file of especially a kind of player.
Background technique
It is existing in such as school, enterprise, army or wedding scene, examination when using player plays audio file
, school's getting up early setting-up exercises to radio music, spoken when English exam plays, and often has the need that timing plays some audio file
It wants, in the prior art, the audio file played for timing has plenty of using the manually-operated mode of clock timing, some equipment
Although can be realized timing to audio file to play, structure is more complicated, and it is comparatively laborious to operate with program, is not easy to
It promotes the use, is also not easy to operating with for ordinary user.
Therefore, the prior art needs to improve.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: the timing for providing a kind of player plays audio file
System, it is of the existing technology to solve the problems, such as.
One aspect based on the embodiment of the present invention discloses the system that a kind of timing of player plays audio file,
Include:
Main control unit, audio decoding unit, D/A conversion unit, timer unit, audio peripheral storage device；
The main control unit is connect with the audio decoding unit, timer unit, and the main control unit is to the audio
Decoding unit sends audio file, the running parameter of the audio decoding unit is arranged, and control the work of audio decoding unit；
The audio decoding unit is connect with the AD conversion unit, for audio file to be decoded into digital audio text
After part, it is sent to AD conversion unit；
The AD conversion unit receives the digital audio and video signals that the audio decoding unit is sent, and digital audio is believed
Number analog audio signal is converted to, is output to the playback equipment of external analog audio；
The timer unit is connect with the main control unit, is joined for timing to be arranged under the control of the main control unit
Number, and after reaching timing time, Xiang Suoshu main control unit sends trigger signal, and triggering main control unit executes corresponding instruction；
The audio peripheral storage device is connect with the main control unit, for storing audio file, and in the master control list
Corresponding audio file is sent to the main control unit under member control.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the master
Controlling unit includes:
Main control chip, display screen, RS485 interface unit, usb interface unit, memory module, audio output interface, key
Module；
The main control chip and the display screen, RS485 interface unit, usb interface unit, memory module, audio output
Interface, key module connection, the display screen show the output of the main control chip, the RS485 interface unit, USB interface
Unit with audio peripheral storage device for connecting, and the memory module is for storing the RS485 interface unit, USB interface list
The audio file of the received audio peripheral storage device of member, the audio output interface are described to press for exporting local audio signal
Key module is used to be arranged the running parameter of the main control chip.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the master
Control chip are as follows: STM32F429 chip, the memory module include 25Q128 character library and 24C512 storage.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the sound
Frequency decoding unit includes:
Audio decoder chip, interface unit, flash cell, communication unit；
The audio decoder chip is connect with the interface unit, flash cell, communication unit, the audio decoder chip
Receive the interface unit, flash cell, communication unit send audio file, and exported after being decoded to audio file to
D/A conversion unit；
The interface unit is used to connect with external audio storage equipment, including RS485 interface, USB interface, SD card connect
Mouthful；
After the audio decoder chip receives the audio file of external transmission, it is buffered in the flash cell first,
And the audio file played will be needed to be sent to audio decoder chip according to setting sequence and rate by flash cell；
The communication unit is used to receive the audio file of external transmission by wirelessly or non-wirelessly mode.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the sound
Frequency decoding chip is SC6138 chip.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the number
Mould converting unit includes PCM1792 chip.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the meter
When device unit include DS1302 chip.
Compared with prior art, the invention has the following advantages that
The invention proposes the systems that a kind of timing of player plays audio file, have logic simple, and timing plays
It is multiple functional, it is at low cost, it is produced suitable for product batch, makees timing using DS1302 chip, there is timing standard, high reliablity
Advantage solves the problems, such as that software timing uncertainty is true.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with description for explaining
The principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the structural schematic diagram of one embodiment that the timing of player of the invention plays the system of audio file.
In figure, 1 main control unit, 2 audio decoding units, 3 D/A conversion units, 4 timer units, 5 audio external storages are set
It is standby.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
Fig. 1 is the structural schematic diagram of one embodiment that the timing of player of the invention plays the system of audio file,
As shown in Figure 1, the system that the timing of the player plays audio file includes:
Main control unit 1, audio decoding unit 2, D/A conversion unit 3, timer unit 4, audio peripheral storage device 5；
The main control unit 1 is connect with the audio decoding unit 2, timer unit 4, and the main control unit 1 is to described
Audio decoding unit 2 sends audio file, the running parameter of the audio decoding unit 2 is arranged, and control audio decoding unit 2
Work；
The audio decoding unit 2 is connect with the AD conversion unit, for audio file to be decoded into digital audio
After file, it is sent to AD conversion unit；
The AD conversion unit receives the digital audio and video signals that the audio decoding unit 2 is sent, and by digital audio
Signal is converted to analog audio signal, is output to the playback equipment of external analog audio；
The timer unit 4 is connect with the main control unit 1, based on setting under the control in the main control unit 1
When parameter, and after reaching timing time, Xiang Suoshu main control unit 1 sends trigger signal, and triggering main control unit 1 executes accordingly
Instruction；
The audio peripheral storage device 5 is connect with the main control unit 1, for storing audio file, and in the master control
Corresponding audio file is sent to the main control unit 1 under the control of unit 1.
The main control unit 1 include: main control chip, display screen, RS485 interface unit, usb interface unit, memory module,
Audio output interface, key module；
The main control chip and the display screen, RS485 interface unit, usb interface unit, memory module, audio output
Interface, key module connection, the display screen show the output of the main control chip, the RS485 interface unit, USB interface
Unit with audio peripheral storage device 5 for connecting, and the memory module is for storing the RS485 interface unit, USB interface list
The audio file of the received audio peripheral storage device 5 of member, the audio output interface are described to press for exporting local audio signal
Key module is used to be arranged the running parameter of the main control chip.
In another embodiment for the system that the timing based on the above-mentioned player of the present invention plays audio file, the master
Control chip are as follows: STM32F429 chip, the memory module include 25Q128 character library and 24C512 storage.
The audio decoding unit 2 includes: audio decoder chip, interface unit, flash cell, communication unit；
The audio decoder chip is connect with the interface unit, flash cell, communication unit, the audio decoder chip
Receive the interface unit, flash cell, communication unit send audio file, and exported after being decoded to audio file to
D/A conversion unit 3；
The interface unit is used to connect with external audio storage equipment, including RS485 interface, USB interface, SD card connect
Mouthful；
After the audio decoder chip receives the audio file of external transmission, it is buffered in the flash cell first,
And the audio file played will be needed to be sent to audio decoder chip according to setting sequence and rate by flash cell；
The communication unit is used to receive the audio file of external transmission by wirelessly or non-wirelessly mode.
The audio decoder chip is SC6138 chip, and the D/A conversion unit 3 includes PCM1792 chip, the meter
When device unit 4 include DS1302 chip.
In practical applications, operating process are as follows:
System starting, equipment bring into operation, and hardware completes initialization, and system software completes load；
Main control unit 1 reads the audio file of audio peripheral storage device 5 in its memory module, and played column is added
Table；
Main control unit 1 reads the time parameter of a timer unit 4 every 300ms, and current time parameter is deposited
It stores up in its memory module, and is shown to display screen；
Main control unit 1 reads the time parameter being locally located, and judges audio file broadcasting whether is configured under current time
Instruction；
If it is, main control unit sends sound according to the sequence that playlist is specified for the audio file in memory module
Frequency decoding unit 2；
Audio decoding unit 2 parses the audio file received, and is cached to local flash memory unit, by D/A conversion unit
After 3 convert digital signals into analog signal, it is sent to external audio playback equipment and plays audio file.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.For system embodiment
For, since it is substantially corresponding with embodiment of the method, so being described relatively simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (7)
1. the system that a kind of timing of player plays audio file characterized by comprising
Main control unit, audio decoding unit, D/A conversion unit, timer unit, audio peripheral storage device；
The main control unit is connect with the audio decoding unit, timer unit, and the main control unit is to the audio decoder
Unit sends audio file, the running parameter of the audio decoding unit is arranged, and control the work of audio decoding unit；
The audio decoding unit is connect with the AD conversion unit, for audio file to be decoded into digital audio file
Afterwards, it is sent to AD conversion unit；
The AD conversion unit receives the digital audio and video signals that the audio decoding unit is sent, and digital audio and video signals are turned
It is changed to analog audio signal, is output to the playback equipment of external analog audio；
The timer unit is connect with the main control unit, for timing parameter to be arranged under the control of the main control unit,
And after reaching timing time, Xiang Suoshu main control unit sends trigger signal, and triggering main control unit executes corresponding instruction；
The audio peripheral storage device is connect with the main control unit, for storing audio file, and in the main control unit control
Corresponding audio file is sent to the main control unit under system.
2. the system that the timing of player according to claim 1 plays audio file, which is characterized in that the master control list
Member includes:
Main control chip, display screen, RS485 interface unit, usb interface unit, memory module, audio output interface, key module；
The main control chip and the display screen, RS485 interface unit, usb interface unit, memory module, audio output interface,
Key module connection, the display screen show the output of the main control chip, and the RS485 interface unit, usb interface unit are used
It is connect in audio peripheral storage device, the memory module is for storing the RS485 interface unit, usb interface unit reception
Audio peripheral storage device audio file, the audio output interface is for exporting local audio signal, the key module
For the running parameter of the main control chip to be arranged.
3. the system that the timing of player according to claim 2 plays audio file, which is characterized in that the master control core
Piece are as follows: STM32F429 chip, the memory module include 25Q128 character library and 24C512 storage.
4. the system that the timing of player according to claim 1 plays audio file, which is characterized in that the audio solution
Code unit include:
Audio decoder chip, interface unit, flash cell, communication unit；
The audio decoder chip is connect with the interface unit, flash cell, communication unit, and the audio decoder chip receives
The audio file that the interface unit, flash cell, communication unit are sent, and export after being decoded to audio file to digital-to-analogue
Converting unit；
The interface unit is used to connect with external audio storage equipment, including RS485 interface, USB interface, SD card interface；
After the audio decoder chip receives the audio file of external transmission, it is buffered in the flash cell first, and by
Flash cell will need the audio file played to be sent to audio decoder chip according to setting sequence and rate；
The communication unit is used to receive the audio file of external transmission by wirelessly or non-wirelessly mode.
5. the system that the timing of player according to claim 4 plays audio file, which is characterized in that the audio solution
Code chip is SC6138 chip.
6. the system that the timing of player according to claim 1 plays audio file, which is characterized in that the digital-to-analogue turns
Changing unit includes PCM1792 chip.
7. the system that the timing of player according to claim 1 plays audio file, which is characterized in that the timer
Unit includes DS1302 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684334.8A CN110400581A (en) | 2019-07-26 | 2019-07-26 | The system that the timing of player plays audio file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684334.8A CN110400581A (en) | 2019-07-26 | 2019-07-26 | The system that the timing of player plays audio file |
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| Publication Number | Publication Date |
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| CN110400581A true CN110400581A (en) | 2019-11-01 |
Family
ID=68325187
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910684334.8A Pending CN110400581A (en) | 2019-07-26 | 2019-07-26 | The system that the timing of player plays audio file |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679757Y (en) * | 2004-01-13 | 2005-02-16 | 谢华 | Music player having timing playing function |
| CN102185851A (en) * | 2009-12-02 | 2011-09-14 | 华为技术有限公司 | Timing playing device setting method and system |
| JPWO2017033764A1 (en) * | 2015-08-26 | 2018-06-07 | ソニー株式会社 | Recording apparatus, recording method, and program |
| US10291783B2 (en) * | 2016-12-30 | 2019-05-14 | Akamai Technologies, Inc. | Collecting and correlating microphone data from multiple co-located clients, and constructing 3D sound profile of a room |
-
2019
- 2019-07-26 CN CN201910684334.8A patent/CN110400581A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679757Y (en) * | 2004-01-13 | 2005-02-16 | 谢华 | Music player having timing playing function |
| CN102185851A (en) * | 2009-12-02 | 2011-09-14 | 华为技术有限公司 | Timing playing device setting method and system |
| JPWO2017033764A1 (en) * | 2015-08-26 | 2018-06-07 | ソニー株式会社 | Recording apparatus, recording method, and program |
| US10291783B2 (en) * | 2016-12-30 | 2019-05-14 | Akamai Technologies, Inc. | Collecting and correlating microphone data from multiple co-located clients, and constructing 3D sound profile of a room |
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Application publication date: 20191101 |
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