CN103916683A - OTT device with karaoke function - Google Patents
OTT device with karaoke function Download PDFInfo
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- CN103916683A CN103916683A CN201410161501.8A CN201410161501A CN103916683A CN 103916683 A CN103916683 A CN 103916683A CN 201410161501 A CN201410161501 A CN 201410161501A CN 103916683 A CN103916683 A CN 103916683A
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- kara
- analog signal
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Abstract
The invention relates to an OTT device with a karaoke function. The OTT device comprises a wireless signal receiving and transmitting module, storage devices, an on-chip system, a microphone signal receiver, a coding and decoding device, a conversion chip and an audio and video output interface. The wireless signal receiving and transmitting module is used for receiving and transmitting a wireless signal. The storage devices comprise the volatile storage device and the nonvolatile storage device. The on-chip system is connected with the wireless signal receiving and transmitting module and the storage devices and used for outputting song audio and video signals according to audio and video files. The microphone signal receiver is used for converting sound input by a microphone into an analog signal. The coding and decoding device is connected with the microphone signal receiver and used for coding the analog signal into an analog signal which can be recognized by the conversion chip and inputting the analog signal into the conversion chip. The conversion chip is connected with the on-chip system and the coding and decoding device and used for performing sound mixing on audio information in the song audio and video signals and the analog signal input by the coding and decoding device and outputting the audio information and the analog signal into the audio and video output interface. The audio and video output interface is connected with the conversion chip and used for being connected with a playing device. Consumed time in the sound mixing process is short, and therefore a good KTV experience effect can be achieved.
Description
Technical field
The present invention relates to electrical communication technology, relate in particular to a kind of OTT device of tool Kara OK function.
Background technology
OTT(Over The Top) refer to the TV broadcast mode that does not rely on intermediate conveyor network.Be sent to the mode of carrying out video and audio frequency broadcasting on television screen by the Internet, be commonly called OTT.
OTT box is as a kind of equipment that network television function is provided, there is gradually in recent years a lot of customer groups, popularizing along with OTT box now, the demand of the amusement function of user to OTT is more and more higher, commonly can only see that network TV program requires to add more other amusement function gradually by original.
Summary of the invention
Based on this, be necessary to provide a kind of OTT device of tool Kara OK function.
An OTT device for tool Kara OK function, is characterized in that, comprising: wireless signal transceiver module, for receiving and send wireless signal; Memory, comprises volatile memory and nonvolatile memory, and described nonvolatile memory is for installing operating system and software, and described volatile memory is as internal memory; SOC (system on a chip), connects described wireless signal transceiver module and memory, and for exporting song audio-video signal according to audio-video document, described song audio-video signal is analog signal; Microphone signal receiver, for being converted to analog signal by the sound of microphone input; Coder-decoder, connects described microphone signal receiver, for described analog signal being encoded to the analog signal that conversion chip can identify and inputting described conversion chip; Conversion chip, connects described SOC (system on a chip) and coder-decoder, carries out exporting to audio and video output interface after audio mixing for the analog signal of inputting by the audio-frequency information of described song audio-video signal with by described coder-decoder; Audio and video output interface, connects described conversion chip, for connecting playback equipment.
In an embodiment, described microphone signal receiver comprises wireless microphone transceiving chip and/or wire microphone socket therein.
In an embodiment, described audio and video output interface comprises HDMI interface and/or analogue AV interface therein, and described SOC (system on a chip) is exported to described conversion chip by integrated HDMI interface by described song audio-video signal.
In an embodiment, described conversion chip is integrated with I therein
2s interface, described coder-decoder is encoded to described analog signal the analog signal that conversion chip can identify and inputs described conversion chip, is specifically converted to I
2after the signal of S interface, input described I
2s interface.
In an embodiment, described wireless signal transceiver module comprises two identical wireless chips therein, and described SOC (system on a chip) is by SDIO bus and two two wireless networks of receiving of described wireless chip composition.
In an embodiment, described wireless chip has provides the WiFi of 2.4G hertz frequency and the function of Bluetooth transmission therein.
Therein in an embodiment, described SOC (system on a chip) proportion provides work clock for the crystal oscillator of 24M hertz.
In an embodiment, described SOC (system on a chip) is also integrated with multiple USB interface therein.
In an embodiment, described volatile memory adopts DDR3SDRAM therein, and described nonvolatile memory adopts NAND Flash.
In an embodiment, also comprise that Ethernet connects chip therein, connect for realizing cable network.
The OTT device of above-mentioned tool Kara OK function, the input and output signal of conversion chip is all analog signal, and without the process of modulus, digital-to-analogue conversion, the time of audio mixing process cost is short, realize extremely short sound delay, therefore can obtain preferably KTV experience effect.Can utilize that this device realizes that online KTV sings, network sing, the function such as individual MTV making.
Brief description of the drawings
Fig. 1 is the structural representation of the OTT device of tool Kara OK function in an embodiment.
Embodiment
For object of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the structural representation of the OTT device of tool Kara OK function in an embodiment, comprises microphone signal receiver 110, coder-decoder 120, conversion chip 130, SOC (system on a chip) 140, audio and video output interface 150, memory 160 and wireless signal transceiver module 170.
SOC (system on a chip) 140 is SoC(System on Chip) chip, it connects wireless signal transceiver module 170 and memory 160, for exporting song audio-video signal to conversion chip 130 according to audio-video document (be stored in memory 160 or obtain by Ethernet net).In the present embodiment, SOC (system on a chip) 140 adopts AML8726MX, also can adopt in other embodiments other chip, such as MXD6A80X etc.SOC (system on a chip) 140 is integrated with HDMI(High Definition Multimedia Interface, HDMI (High Definition Multimedia Interface)), AV, SPDIF(Sony/Philips Digital Interface Format) etc. audio-video interface, by HDMI interface, song audio-video signal is exported to conversion chip 130.
Wireless signal transceiver module 170 is for receiving and send wireless signal.In the present embodiment, wireless signal transceiver module comprises two identical wireless chip BCM43241, and the WiFi of 2.4G hertz frequency and the function of Bluetooth transmission can be provided.SOC (system on a chip) 140 is by SDIO(Secure Digital Input and Output Card, secure digital input-output card) bus and two two wireless networks of receiving of wireless chip composition.The function of wireless remote control can be realized by wireless signal transceiver module 170, WiFi accessing Internet can also be passed through.
Memory 160 comprises volatile memory and nonvolatile memory, and nonvolatile memory is for installing operating system and software, and volatile memory is as internal memory.In the present embodiment, volatile memory adopts DDR3SDRAM, and nonvolatile memory adopts NAND Flash, and operating system can adopt Android system.
Microphone signal receiver 110, for the sound (voice) of microphone input is converted to analog signal, is transferred to coder-decoder 120.In the present embodiment, microphone signal receiver 110 comprises wireless microphone transceiving chip and wire microphone socket.Wireless microphone transceiving chip, for the audio interface of wireless microphone is at a distance got back, is converted to simulated audio signal.Wireless microphone transceiving chip can adopt the nRF2460 of Nordic company, and wireless microphone can be installed on mobile phone, remote controller etc., facilitates user to sing.The direct external wire microphone of wire microphone socket is analog signal by the audio rendition of input.
Coder-decoder 120 connects microphone signal receiver 110, is the analog signal that conversion chip 130 can be identified for the Signal coding that microphone signal receiver 110 is transmitted, and inputs conversion chip 130.In the present embodiment, coder-decoder 120 adopts the Codec chip CS48L10 of Cirrus Logic company, owing to being the I that connects conversion chip 130
2s interface, is therefore specifically converted into I by analog signal
2after the signal of S interface, input the I of conversion chip 130
2s interface.
The i.e. Transform chip of conversion chip 130, it connects SOC (system on a chip) 140 and coder-decoder 120, being used for the audio-frequency information of the song audio-video signal that SOC (system on a chip) 140 is inputted by HDMI interface and the analog signal of being inputted by coder-decoder 120 carries out, after audio mixing, exporting to audio and video output interface 150.In the present embodiment, conversion chip 130 adopts the MST31HA3 chip of Mstar company.
Audio and video output interface 150 connects conversion chip 130, comprises HDMI interface, AV interface etc., for the playback equipment such as connecting TV, sound equipment, by playback equipment, the Karaoke song after audio mixing is play.
The OTT device of above-mentioned tool Kara OK function, the input and output signal of conversion chip 130 is all analog signal, without the process of modulus, digital-to-analogue conversion, the time of audio mixing process cost is short, realize extremely short sound delay (being that sound equipment lags behind with respect to the sound of video), therefore can obtain preferably KTV experience effect.Device can utilize mobile phone, the built-in wireless microphone of Digiplex to realize the K song of home entertaining or business, and the equipment that can also receive the audio-video interfaces such as relevant HDMI, AV is realized the acoustics of high-quality.Can utilize that this device realizes that online KTV sings, network sing, the function such as individual MTV making.
In an embodiment, the OTT device of tool Kara OK function also comprises that Ethernet connects chip therein, connects for realizing wired ethernet network.Particularly, SOC (system on a chip) 140, by the external KSZ8081RNBCA chip of RGMII interface, forms 100,000,000 quick network interfaces, then by external transformer, the wired WAN transfer function of RJ45 Interface realization.
Therein in an embodiment, the crystal oscillator that is 24MHz by a frequency provides work clock for SOC (system on a chip) 140.
In an embodiment, the OTT device of tool Kara OK function adopts the external power source of 12 volts therein.
In an embodiment, SOC (system on a chip) 140 is also integrated with multiple USB interface therein, can realize expanded function by external various USB device easily, and such as external mobile communication network (3G, 4G etc.) card of surfing Internet is got online without being tethered to a cable.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an OTT device for tool Kara OK function, is characterized in that, comprising:
Wireless signal transceiver module, for receiving and send wireless signal;
Memory, comprises volatile memory and nonvolatile memory, and described nonvolatile memory is for installing operating system and software, and described volatile memory is as internal memory;
SOC (system on a chip), connects described wireless signal transceiver module and memory, and for exporting song audio-video signal according to audio-video document, described song audio-video signal is analog signal;
Microphone signal receiver, for being converted to analog signal by the sound of microphone input;
Coder-decoder, connects described microphone signal receiver, for described analog signal being encoded to the analog signal that conversion chip can identify and inputting described conversion chip;
Conversion chip, connects described SOC (system on a chip) and coder-decoder, carries out exporting to audio and video output interface after audio mixing for the analog signal of inputting by the audio-frequency information of described song audio-video signal with by described coder-decoder;
Audio and video output interface, connects described conversion chip, for connecting playback equipment.
2. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described microphone signal receiver comprises wireless microphone transceiving chip and/or wire microphone socket.
3. the OTT device of tool Kara OK function according to claim 1, it is characterized in that, described audio and video output interface comprises HDMI interface and/or analogue AV interface, and described SOC (system on a chip) is exported to described conversion chip by integrated HDMI interface by described song audio-video signal.
4. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described conversion chip is integrated with I
2s interface, described coder-decoder is encoded to described analog signal the analog signal that conversion chip can identify and inputs described conversion chip, is specifically converted to I
2after the signal of S interface, input described I
2s interface.
5. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described wireless signal transceiver module comprises two identical wireless chips, and described SOC (system on a chip) is by SDIO bus and two two wireless networks of receiving of described wireless chip composition.
6. the OTT device of tool Kara OK function according to claim 5, is characterized in that, described wireless chip has provides the WiFi of 2.4G hertz frequency and the function of Bluetooth transmission.
7. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described SOC (system on a chip) proportion provides work clock for the crystal oscillator of 24M hertz.
8. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described SOC (system on a chip) is also integrated with multiple USB interface.
9. the OTT device of tool Kara OK function according to claim 1, is characterized in that, described volatile memory adopts DDR3SDRAM, and described nonvolatile memory adopts NAND Flash.
10. the OTT device of tool Kara OK function according to claim 1, is characterized in that, also comprises that Ethernet connects chip, connects for realizing cable network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161501.8A CN103916683B (en) | 2014-04-21 | 2014-04-21 | Have the OTT devices of Kara OK function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161501.8A CN103916683B (en) | 2014-04-21 | 2014-04-21 | Have the OTT devices of Kara OK function |
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| Publication Number | Publication Date |
|---|---|
| CN103916683A true CN103916683A (en) | 2014-07-09 |
| CN103916683B CN103916683B (en) | 2017-08-25 |
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Cited By (5)
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| WO2015131591A1 (en) * | 2014-09-16 | 2015-09-11 | 中兴通讯股份有限公司 | Audio signal output method, device, terminal and system |
| CN105654932A (en) * | 2014-11-10 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | System and method for implementing karaoke application |
| CN106028183A (en) * | 2016-07-25 | 2016-10-12 | 北京塞宾科技有限公司 | Wireless conversion interface of microphone |
| CN112333512A (en) * | 2020-11-18 | 2021-02-05 | 深圳巴金科技有限公司 | Audio-visual system, audio delay detection method and audio-visual watching scene synchronization method |
| CN112333512B (en) * | 2020-11-18 | 2024-04-12 | 深圳巴金科技有限公司 | Audio and video system, audio delay detection method and audio and video watching scene synchronization method |
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| CN112333512B (en) * | 2020-11-18 | 2024-04-12 | 深圳巴金科技有限公司 | Audio and video system, audio delay detection method and audio and video watching scene synchronization method |
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| CN103916683B (en) | 2017-08-25 |
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Address after: 518000 Nanshan medical equipment Industrial Park, No. 1019, Nanshan Road, Nanshan District, Shenzhen, Guangdong Province, A211-A213 Patentee after: Shenzhen Hai Yun new energy Co., Ltd. Address before: 518000 Nanshan District, Guangdong, South China Sea Road, No. 1019 Nanshan medical equipment Industrial Park, A408, B401-403, Patentee before: SHENZHEN GOLDWEB TECHNOLOGY CO., LTD. |
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Granted publication date: 20170825 Termination date: 20180421 |