CN211959419U - USB audio processor for network set top box - Google Patents
USB audio processor for network set top box Download PDFInfo
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- CN211959419U CN211959419U CN201922332409.4U CN201922332409U CN211959419U CN 211959419 U CN211959419 U CN 211959419U CN 201922332409 U CN201922332409 U CN 201922332409U CN 211959419 U CN211959419 U CN 211959419U
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Abstract
A USB audio processor for a network set top box comprises a USB interface, a power supply circuit, a USB sound card, a DSP processor, a wireless audio transmitting circuit, a wireless microphone receiving circuit and an MCU controller, wherein the power supply circuit is respectively connected with the USB interface, the USB sound card, the DSP processor, the wireless audio transmitting circuit, the wireless microphone receiving circuit and the MCU controller, the DSP processor is connected with the wireless audio transmitting circuit and the wireless microphone receiving circuit, the DSP processor is connected with the USB interface through the USB sound card, the MCU controller is connected with the DSP processor and the wireless audio transmitting circuit, and the MCU controller is connected with the USB interface through the USB sound card. The utility model realizes the recording sharing of the set-top box singing karaoke, reduces the time delay of a microphone and reduces the connecting lines of a sound box; the network set top box is used for carrying out visual control on the audio processor, the control difficulty of the remote controller is reduced, visual human-computer exchange control is realized, and the user experience is enhanced.
Description
Technical Field
The utility model relates to an integrated circuit field, concretely relates to network is USB audio processor for STB.
Background
Network set-top boxes have been developed to today not just watch video. Network set-top boxes have been widely used as a source of karaoke programs at home.
The karaoke software of the conventional network set top box has a recording sharing function, and the traditional external microphone equipment is used, so that the set top box cannot record the sound of a microphone because the microphone signal is outside the network set top box, and cannot perform recording sharing. This greatly influences the experience of people.
Meanwhile, the external microphone equipment needs a remote controller for controlling, so that a plurality of remote controllers are needed to complete the control when the operation is completed, and the control complexity of the equipment is increased.
In the existing new USB microphone, a microphone signal is directly transmitted to the set top box through a USB interface of the network set top box, and the microphone signal and a music signal are mixed in the set top box and then output to the sound box through an audio interface of the network set top box. Because the sound is mixed inside the set-top box, sound recording sharing can be realized.
However, most network set-top boxes do not support the audio interface through which the microphone signal is directly output to the network set-top box, and the audio interface is realized through an application program, but the processed microphone sound is delayed obviously, and the problem of processing the microphone signal by using the network set-top box is that the microphone sound is delayed, so that the sound played by the sound box is not synchronous with the actual singing sound. This greatly affects the user experience.
Meanwhile, the traditional network set top box is connected with the sound box by using an audio cable, so that the placement position of the sound box is greatly limited besides a plurality of connecting wires.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a network is USB audio processor for STB.
In order to achieve the above object, the utility model provides a following technical scheme:
a USB audio processor for a network set top box comprises a USB interface, a power supply circuit, a USB sound card, a DSP processor, a wireless audio transmitting circuit, a wireless microphone receiving circuit and an MCU controller, wherein the power supply circuit is respectively connected with the USB interface, the USB sound card, the DSP processor, the wireless audio transmitting circuit, the wireless microphone receiving circuit and the MCU controller;
the USB interface is connected to a network set top box;
the power circuit is connected with an external power supply;
the USB sound card is used for coding and decoding conversion of sound signals and control signals;
the DSP processor is used for processing the audio signal;
the wireless audio transmitting circuit converts an audio signal into a wireless signal and transmits the wireless signal;
the wireless microphone receiving circuit receives a signal of a wireless microphone;
the MCU controller controls the USB sound card, the DSP processor, the wireless audio transmitting circuit and the wireless microphone receiving circuit.
Further, the power circuit is connected with a VBUS pin of the USB interface, the DSP processor is connected with a DP pin and a DM pin of the USB interface, and the MCU controller is connected with the DP pin and the DM pin of the USB interface through the USB sound card. The functions of supplying power to the USB, receiving music signals, receiving recording signals, controlling the music signals and controlling the recording signals are achieved.
Furthermore, the USB sound card comprises a codec, a music interface, a recording interface and a control interface, wherein the music interface, the recording interface and the control interface are respectively connected to the codec. The functions of processing data, receiving music signals, receiving recording signals and transmitting data are achieved.
Further, the DSP treater is including music processing circuit, microphone processing circuit and audio mixing circuit, the music processing circuit with audio mixing circuit is connected respectively to microphone processing circuit, music processing circuit still connects the music interface, audio mixing circuit still connects the recording interface with wireless audio transmitting circuit. The functions of inputting music signals, inputting recording signals, inputting microphone signals and outputting mailbox signals are achieved.
Compared with the prior art, the beneficial effects of the utility model are embodied in: the recording sharing of the karaoke is realized by the set top box, the time delay of a microphone is reduced, and connecting lines of a sound box are reduced; the network set top box is used for carrying out visual control on the audio processor, the control difficulty of the remote controller is reduced, visual human-computer exchange control is realized, and the user experience is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
in the reference symbols: 1. a USB interface; 2. a power supply circuit; 3. a USB sound card; 4. a DSP processor; 5. a wireless audio transmitting circuit; 6. a wireless microphone receiving circuit; 7. an MCU controller; 8. a network set-top box; 31. a codec; 32. a music interface; 33. a recording interface; 34. a control interface; 41. a music processing circuit; 42. a sound mixing circuit; 43. a microphone processing circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a USB audio processor for a network set top box comprises a USB interface 1, a power circuit 2, a USB sound card 3, a DSP processor 4, a wireless audio transmitting circuit 5, a wireless microphone receiving circuit 6 and an MCU controller 7, wherein the power circuit 2 is respectively connected to the USB interface 1, the USB sound card 3, the DSP processor 4, the wireless audio transmitting circuit 5, the wireless microphone receiving circuit 6 and the MCU controller 7, the DSP processor 4 is connected to the wireless audio transmitting circuit 5 and the wireless microphone receiving circuit 6, the DSP processor 4 is connected to the USB interface 1 through the USB sound card 3, the MCU controller 7 is connected to the DSP processor 4 and the wireless audio transmitting circuit 5, and the MCU controller 7 is connected to the USB interface 1 through the USB sound card 3;
the USB interface 1 is connected to a network set-top box 8;
the power circuit 2 is connected with an external power supply;
the USB sound card 3 is used for coding and decoding conversion of sound signals and control signals;
the DSP processor 4 is used for processing the audio signal;
the wireless audio transmitting circuit 5 converts the audio signal into a wireless signal and transmits the wireless signal;
the wireless microphone receiving circuit 6 receives a signal of a wireless microphone;
the MCU controller 7 controls the USB sound card 3, the DSP processor 4, the wireless audio transmitting circuit 5 and the wireless microphone receiving circuit 6.
The power supply circuit 2 is connected with a VBUS pin of the USB interface 1, the DSP processor 4 is connected with a DP pin and a DM pin of the USB interface 1, and the MCU controller 7 is connected with the DP pin and the DM pin of the USB interface 1 through the USB sound card 3. The functions of supplying power to the USB, receiving music signals, receiving recording signals, controlling the music signals and controlling the recording signals are achieved.
The USB sound card 3 includes a codec 31, a music interface 32, a recording interface 33, and a control interface 34, and the music interface 32, the recording interface 33, and the control interface 34 are respectively connected to the codec 31. The functions of processing data, receiving music signals, receiving recording signals and transmitting data are achieved.
The DSP processor 4 comprises a music processing circuit 41, a microphone processing circuit 43 and a mixing circuit 42, the music processing circuit 41 and the microphone processing circuit 43 are respectively connected to the mixing circuit 42, the music processing circuit 41 is further connected to the music interface 32, and the mixing circuit 42 is further connected to the recording interface 33 and the wireless audio transmitting circuit 5. The functions of inputting music signals, inputting recording signals, inputting microphone signals and outputting mailbox signals are achieved.
The operation principle is as follows: the power circuit 2 is connected with a VBUS pin of the USB interface 1, the USB sound card 3, the DSP processor 4, the wireless audio transmitting circuit 5, the wireless microphone receiving circuit 6 and the MCU controller 7. USB interface 1 will the utility model discloses be connected to network STB 8, USB interface 1's VBUS pin acquires 5V power supply circuit 2 from network STB 6, and 5V passes through power circuit 2's conversion, does the utility model discloses each part provides corresponding power.
The music code stream of the network set-top box 8 is transmitted to the codec 31 of the USB sound card 3 through the DP and DM pins of the USB interface 1, the music code stream is decoded into a music signal by the codec 31, the music signal is transmitted to the music processing circuit 41 of the DSP processor 4 through the music interface 32, and the music signal processed by the music processing circuit 41 is transmitted to the audio mixing circuit 42.
The wireless microphone receiving circuit 6 is used for receiving the voice and audio signals sent by the external wireless microphone transmitter, and the microphone signals received by the wireless microphone receiving circuit 6 are processed by the microphone processing circuit 43 of the DSP processor 4 and then are transmitted to the mixing circuit 42.
The music signal from the music processing circuit 41 and the microphone signal from the microphone processing circuit 43 are mixed in the mixing circuit 42, and the two signals are mixed into a mixed audio signal and output by the mixing circuit 42. One path of the signal output by the audio mixing circuit 42 is converted into a radio signal by the wireless audio transmitting circuit 5 and transmitted to the sound box. The other path of the signal output by the audio mixing circuit 42 is transmitted to the codec 31 through the recording interface 33 of the USB sound card 3, and the codec 31 converts the bit audio code stream and transmits the converted stream to the network set-top box 8 through the DP and DM pins of the USB interface 1 for recording.
The control signal of network set top box 8 also is DP, the DM pin through USB interface 1 and transmits the codec 31 of USB sound card 3, and the control signal of network set top box is passed to MCU controller 7 by control interface 34 after codec 31 decodes, and is right by MCU controller 7 again the utility model discloses a DSP treater 4, wireless audio transmitting circuit link to each other 5, wireless microphone receiving circuit 6 controls.
The utility model discloses a DSP treater 4, wireless audio transmitting circuit link to each other 5, all information such as wireless microphone receiving circuit 6's state also can be passed through USB sound card 3's control interface 34 by MCU controller 7 and be given encoder 31 and encode, and information after the coding is transmitted for network set top box 8 through the DP of USB interface 1, DM pin, and network set top box 8 just can be through the analysis to information the utility model discloses an information display is to on the television screen of being connected with network set top box.
Has the advantages that: the recording sharing of the karaoke is realized by the set top box, the time delay of a microphone is reduced, and connecting lines of a sound box are reduced; the network set top box is used for carrying out visual control on the audio processor, the control difficulty of the remote controller is reduced, visual human-computer exchange control is realized, and the user experience is enhanced.
The above description is further detailed for the present invention with reference to specific embodiments, and it should not be construed that the embodiments of the present invention are limited to the above description. It will be apparent to those skilled in the art that various simple deductions or substitutions can be made to the above embodiments without departing from the spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. A USB audio processor for a network set top box comprises a USB interface, a power supply circuit, a USB sound card, a DSP processor, a wireless audio transmitting circuit, a wireless microphone receiving circuit and an MCU controller, and is characterized in that the power supply circuit is respectively connected with the USB interface, the USB sound card, the DSP processor, the wireless audio transmitting circuit, the wireless microphone receiving circuit and the MCU controller, the DSP processor is connected with the wireless audio transmitting circuit and the wireless microphone receiving circuit, the DSP processor is connected with the USB interface through the USB sound card, the MCU controller is connected with the DSP processor and the wireless audio transmitting circuit, and the MCU controller is connected with the USB interface through the USB sound card;
the USB interface is connected to a network set top box;
the power circuit is connected with an external power supply;
the USB sound card is used for coding and decoding conversion of sound signals and control signals;
the DSP processor is used for processing the audio signal;
the wireless audio transmitting circuit converts an audio signal into a wireless signal and transmits the wireless signal;
the wireless microphone receiving circuit receives a signal of a wireless microphone;
the MCU controller controls the USB sound card, the DSP processor, the wireless audio transmitting circuit and the wireless microphone receiving circuit.
2. The USB audio processor of claim 1, wherein the power circuit is connected to a VBUS pin of the USB interface, the DSP processor is connected to a DP pin and a DM pin of the USB interface, and the MCU controller is connected to the DP pin and the DM pin of the USB interface.
3. The USB audio processor of claim 1, wherein the USB sound card comprises a codec, a music interface, a recording interface, and a control interface, and the music interface, the recording interface, and the control interface are respectively connected to the codec.
4. The USB audio processor of claim 3, wherein the DSP processor comprises a music processing circuit and a mixing circuit, the music processing circuit is connected to the music interface, and the mixing circuit is connected to the recording interface.
5. The USB audio processor as claimed in claim 4, wherein the DSP processor further comprises a microphone processing circuit, the microphone processing circuit is connected to the mixing circuit, and the mixing circuit is further connected to the music processing circuit.
6. The USB audio processor of claim 4, wherein the mixing circuit is further connected to the wireless audio transmitting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922332409.4U CN211959419U (en) | 2019-12-23 | 2019-12-23 | USB audio processor for network set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922332409.4U CN211959419U (en) | 2019-12-23 | 2019-12-23 | USB audio processor for network set top box |
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| Publication Number | Publication Date |
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| CN211959419U true CN211959419U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922332409.4U Active CN211959419U (en) | 2019-12-23 | 2019-12-23 | USB audio processor for network set top box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929722A (en) * | 2021-03-31 | 2021-06-08 | 杭州国芯科技股份有限公司 | External device for voice control of set top box |
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2019
- 2019-12-23 CN CN201922332409.4U patent/CN211959419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929722A (en) * | 2021-03-31 | 2021-06-08 | 杭州国芯科技股份有限公司 | External device for voice control of set top box |
| CN112929722B (en) * | 2021-03-31 | 2024-05-28 | 杭州国芯科技股份有限公司 | External equipment for voice control of set top box |
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