CN214896575U - Portable sound card with player - Google Patents
Portable sound card with player Download PDFInfo
- Publication number
- CN214896575U CN214896575U CN202120349328.XU CN202120349328U CN214896575U CN 214896575 U CN214896575 U CN 214896575U CN 202120349328 U CN202120349328 U CN 202120349328U CN 214896575 U CN214896575 U CN 214896575U
- Authority
- CN
- China
- Prior art keywords
- analog
- digital
- chip
- audio
- sound card
- 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.)
- Active
Links
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model discloses a take portable sound card of player, be provided with audio circuit among the portable sound card, including an ARM treater chip and peripheral circuit among the audio circuit, ARM treater chip respectively with an LCD display screen, the little chip electrical connection of a memory chip and MCU, MCU microcontroller and a digital signal processing chip electrical connection, digital signal processing chip and MCU microcontroller link to each other with a digital analog/analog-to-digital conversion module respectively, digital analog/analog-to-digital conversion module respectively with preceding stage input amplifier, the audio broadcast module, bluetooth module and USB audio module link to each other. The utility model discloses can realize that microphone + headset interface enlargies through capacitive coupling balance, connect analog to digital converter through the electron volume, again through DSP audio chip and MCU microprocessor program control to the output, realize harmless audio output.
Description
Technical Field
The utility model relates to a portable sound card especially relates to a portable sound card of taking player.
Background
With the innovation of the internet of things technology and the improvement of the living standard of people, live broadcast, karaoke and learning are ubiquitous in our lives, wherein live broadcast sound card equipment is indispensable, and the existing live broadcast sound card has the defects of inconvenience in carrying, incapability of simultaneously supporting a plurality of live broadcast platforms and single working mode, and cannot meet the requirements of people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take portable sound card of player solves the shortcoming regret that prior art exists.
The utility model discloses a following technical scheme realizes:
the portable sound card with the player is characterized in that an audio circuit is arranged in the portable sound card, the audio circuit comprises an ARM processor chip and a peripheral circuit thereof, the ARM processor chip is electrically connected with an LCD display screen, a storage chip and an MCU micro control chip respectively, the MCU micro control chip is electrically connected with a digital signal processing chip, the digital signal processing chip and the MCU micro control chip are connected with a digital-analog/analog-digital conversion module respectively, and the digital-analog/analog-digital conversion module is connected with a pre-stage input amplifier, a sound effect playing module, a Bluetooth module and a USB audio module respectively.
Furthermore, the digital signal processing chip is electrically connected with the digital-analog/analog-digital conversion module through a three-wire type audio signal transmission bus IIS, and the MCU microcontroller is electrically connected with the digital-analog/analog-digital conversion module through a two-wire type serial bus IIC.
Furthermore, the digital-analog/analog-digital conversion module is electrically connected with the USB audio module through a rear-stage output amplifier.
The utility model discloses the beneficial technological effect who possesses is: the microphone and the earphone microphone interface are balanced and amplified through capacitive coupling, connected with an analog-to-digital converter through electronic volume and controlled to the output end through a DSP sound effect chip and an MCU microprocessor program, so that lossless audio output is realized. The LED multi-point backlight touch display screen has the advantages of simple and visual operation interface, quick system response and capability of supporting 2 live broadcast platforms. The system supports two working modes of digital stereo OTG output/analog output, has high compatibility and supports multiple systems.
Drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Detailed Description
The following description of the embodiments will help the public to understand the present invention, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any changes in the definition of the components or technical features and/or in the form of the overall structure rather than substantial changes should be considered as the protection scope defined by the technical solution of the present invention.
As shown in fig. 1, the portable sound card with a player is provided with an audio circuit, the audio circuit includes an ARM processor chip and a peripheral circuit thereof, the ARM processor chip is respectively electrically connected with an LCD display screen, a memory chip and an MCU microcontroller chip, the MCU microcontroller is electrically connected with a digital signal processing chip, the digital signal processing chip and the MCU microcontroller are respectively connected with a digital-to-analog/analog-to-digital conversion module, and the digital-to-analog/analog-to-digital conversion module is respectively connected with a pre-stage input amplifier, a sound effect playing module, a bluetooth module and a USB audio module. In this embodiment, the digital signal processing chip is electrically connected to the digital-to-analog/analog-to-digital conversion module through the three-wire audio signal transmission bus IIS, the MCU microcontroller is electrically connected to the digital-to-analog/analog-to-digital conversion module through the two-wire serial bus IIC, and the digital-to-analog/analog conversion module is electrically connected to the USB audio module through a rear-stage output amplifier. The portable sound card with the player disclosed by the embodiment has high-definition touch screen function control, can be used for selecting music accompaniment by plugging a TF card, realizes independent volume control and remote control, monitors the ear playing in a real-time and lossless manner, can play in a multi-scene mode by listening and singing, can be connected with accompaniment input, and can be connected with external sound source equipment to realize real DSP reverberation input. Portable sound card is from taking battery power indicator, and safe continuation of the journey lasts, supports multiple terminals common use such as computer/panel/cell-phone, and the outward appearance is dazzled cool, and is portable convenient, handles jointly through digital signal processor and MCU microcontroller, realizes that the tone quality transmission of digit can not be harmd/analog transmission to have the stereo accompaniment function of bluetooth. Support 48V power supply (need not additionally to dispose 48V power) compatible various types of condenser microphone, moving coil microphone and headset, can charge for the cell-phone when supporting to charge for the sound card, this function is limited only to the apple cell-phone among the prior art, and the utility model discloses in can charge for the android mobile phone to support two microphone input, the self-defined MP3 audio of changing of joinable computer can regard as the non-destructive converter to use.
Of course, the present invention can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (3)
1. The portable sound card with the player is characterized in that an audio circuit is arranged in the portable sound card, the audio circuit comprises an ARM processor chip and a peripheral circuit thereof, the ARM processor chip is electrically connected with an LCD display screen, a storage chip and an MCU micro control chip respectively, the MCU micro control chip is electrically connected with a digital signal processing chip, the digital signal processing chip and the MCU micro control chip are connected with a digital-analog/analog-digital conversion module respectively, and the digital-analog/analog-digital conversion module is connected with a pre-stage input amplifier, a sound effect playing module, a Bluetooth module and a USB audio module respectively.
2. The portable sound card with player of claim 1, wherein the digital signal processing chip is electrically connected to the digital-to-analog/analog conversion module through a three-wire audio signal transmission bus IIS, and the MCU microcontroller is electrically connected to the digital-to-analog/analog conversion module through a two-wire serial bus IIC.
3. The portable sound card with player of claim 1, wherein the digital-to-analog/analog conversion module is electrically connected to the USB audio module through a post-stage output amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120349328.XU CN214896575U (en) | 2021-02-05 | 2021-02-05 | Portable sound card with player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120349328.XU CN214896575U (en) | 2021-02-05 | 2021-02-05 | Portable sound card with player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214896575U true CN214896575U (en) | 2021-11-26 |
Family
ID=78858273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120349328.XU Active CN214896575U (en) | 2021-02-05 | 2021-02-05 | Portable sound card with player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214896575U (en) |
-
2021
- 2021-02-05 CN CN202120349328.XU patent/CN214896575U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107343242A (en) | A kind of digital earphone | |
| CN207304841U (en) | A kind of digital earphone | |
| CN108062218B (en) | Sound card device | |
| CN214896575U (en) | Portable sound card with player | |
| CN215298205U (en) | Portable sound card with network player | |
| CN108766126A (en) | One kind being used for blind person's tutoring system | |
| CN209914054U (en) | True wireless stereo Bluetooth device with MP3 function | |
| CN209417726U (en) | A kind of list interface turns the digital interface pinboard of three interfaces | |
| JP2020501400A (en) | earphone | |
| CN112799633A (en) | Portable sound card with player | |
| CN205123936U (en) | Multi -functional family cloud amusement all -in -one | |
| CN110278501A (en) | A kind of earphone with to outside sound source acquisition and electron process control output | |
| CN203387659U (en) | Multifunctional sound equipment control circuit | |
| CN201138468Y (en) | Keyboard of loudspeaker box with USB sound card | |
| CN206135136U (en) | Data line of voiced sound source conversion functions and DC earphone interface | |
| CN206195102U (en) | Charging wire of voiced sound source conversion functions and DC earphone interface | |
| CN214381253U (en) | Multifunctional sound box with enhanced singing effect | |
| CN206332837U (en) | A kind of intelligent sound system based on WIFI module | |
| CN206479884U (en) | USB sound cards | |
| CN207968786U (en) | A kind of microphone | |
| CN207589158U (en) | A kind of S06 sound card converters for supporting portable computer | |
| CN207053751U (en) | Single loudspeaker handoff calls circuit, loudspeaker and voiceband facility | |
| CN212519399U (en) | Portable Bluetooth karaoke system | |
| CN219287528U (en) | Acoustic-optical signal coupling transceiver | |
| CN216212306U (en) | MIDI intelligence cloud equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |