CN201336151Y - MP3 audio decoder used for sound equipment - Google Patents
MP3 audio decoder used for sound equipment Download PDFInfo
- Publication number
- CN201336151Y CN201336151Y CNU2008202057362U CN200820205736U CN201336151Y CN 201336151 Y CN201336151 Y CN 201336151Y CN U2008202057362 U CNU2008202057362 U CN U2008202057362U CN 200820205736 U CN200820205736 U CN 200820205736U CN 201336151 Y CN201336151 Y CN 201336151Y
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- audio
- mcu
- audio decoder
- data input
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Abstract
The utility model discloses an MP3 audio decoder used for sound equipment, which comprises a micro controller unit (MCU) module, an MP3 audio decoding module, a digital/analog conversion module, a data input interface, an operating module and a display module, wherein the MCU module is connected with the MP3 audio decoding module, the digital/analog conversion module, the data input interface, the operating module and the display module; the data input interface and the operating module are connected with the input terminal of the MCU module; the output terminal of the MCU module is connected with the digital/analog conversion module and the display module; and the digital/analog conversion module is connected with an output port used for the connection with the sound equipment. The MP3 audio decoder is widely applied to the professional audio equipment (such as the sound mixing consoles and the audio effects), the AV power amplifier and the automobile sound system, and can meet the sound processing requirement in the large-scale concert or performance, wine bar, home, public place and conference.
Description
Technical field
The utility model relates to the MP3 audio decoder that stereo sets such as a kind of MP3 audio decoder, particularly a kind of sound console are used.
Background technology
Along with people to the continuous lifting that audio visual effect requires, the Hi-Fi music of listening to CD Quality becomes a kind of needs in the daily life, but no matter the numeric code rate of CD is broadcasting, Internet up to 1.4MB/s, so that storage all is difficult to accept, must compress.Under this background, a kind ofly reach the CD Quality effect substantially, but the audio compression algorithm that code check is greatly diminished is arisen at the historic moment current popular on the internet MP3 compressed format that Here it is.
Along with the continuous progress of digitizing technique at aspects such as the editor of audio frequency, synthetic, effect process, storage, transmission, digitized audio product has become the market mainstream, and the audio product of traditional pure simulation has almost withdrawed from market.For example little by little to have replaced traditional with characteristics such as more good tonequality, convenient storage and transmission be the music equipment of media with the magnetic tape type audio tape to product such as CD Player, MP3 player.
Summary of the invention
In order to overcome the deficiencies in the prior art, the MP3 audio decoder that the purpose of this utility model has been to provide a kind of stereo set easy to use, effective, that cost is low to use.
The technical scheme that the utility model adopted is:
Stereo set MP3 audio decoder, comprise MCU module, MP3 audio decoder module, piece, D/A converter module, Data Input Interface, operational module and display module, the MCU module is connected with display module with MP3 audio decoder module, D/A converter module, Data Input Interface, operational module, Data Input Interface is connected the input end of MCU module with operational module, the output terminal of MCU module connects D/A converter module and display module, and D/A converter module is connected with the output port that is used to connect stereo set.
The beneficial effects of the utility model are: this module is widely used in professional sound equipment (sound console, effect device), AV power amplifier, car audio system.In large-scale concert or performance, bar, family, public place, meeting etc. can use this product to realize musically tone color processing demands.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is physical circuit figure of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, the special-purpose MP3 audio decoder of stereo set of the present utility model, comprise MCU module, MP3 audio decoder module, D/A converter module, Data Input Interface, operational module and display module, the MCU module is connected with display module with MP3 audio decoder module, D/A converter module, Data Input Interface, operational module, Data Input Interface is connected the input end of MCU module with operational module, the output terminal of MCU module connects D/A converter module and display module, and D/A converter module is connected with the output port that is used to connect stereo set.
Further, as preferred implementation, described display module is the LED display module.
Further, as preferred version, described Data Input Interface is USB and/or SD card.
Circuit of the present utility model specifically can be as shown in Figure 2.
The audio frequency D/A converter module is to convert digital audio and video signals to simulated audio signal, to promote analog audio equipment such as earphone, power amplifier.Demoder of the present utility model is when work, at first the MP3 song files is taken out from internal memory and reads signal on the storer → to decoding chip to signal decode → digital signal that will separate out by digital to analog converter convert to simulating signal → again after the analogue audio frequency amplification → low-pass filtering after the conversion to stereo set, as sound console etc.
Stereo set of the present utility model can be used for conventional audio systems easily with demoder, mobility is strong, usable range is wide, the mobile memory that it and modern popular are used has favorable compatibility, so long as it is the U-DISK/SD that carries can play the audio file of the inside by docking station, easy to use.
Certainly, the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection domain of the present utility model.
Claims (3)
1, stereo set MP3 audio decoder, it is characterized in that: comprise MCU module, MP3 audio decoder module, D/A converter module, Data Input Interface, operational module and display module, the MCU module is connected with display module with MP3 audio decoder module, D/A converter module, Data Input Interface, operational module, Data Input Interface is connected the input end of MCU module with operational module, the output terminal of MCU module connects D/A converter module and display module, and D/A converter module is connected with the output port that is used to connect stereo set.
2, stereo set according to claim 1 MP3 audio decoder is characterized in that: described display module is the LED display module.
3, stereo set according to claim 1 MP3 audio decoder is characterized in that: described Data Input Interface is USB and/or SD card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202057362U CN201336151Y (en) | 2008-12-17 | 2008-12-17 | MP3 audio decoder used for sound equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202057362U CN201336151Y (en) | 2008-12-17 | 2008-12-17 | MP3 audio decoder used for sound equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336151Y true CN201336151Y (en) | 2009-10-28 |
Family
ID=41287810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202057362U Expired - Fee Related CN201336151Y (en) | 2008-12-17 | 2008-12-17 | MP3 audio decoder used for sound equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336151Y (en) |
-
2008
- 2008-12-17 CN CNU2008202057362U patent/CN201336151Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20121217 |