WO2018058825A1

WO2018058825A1 - Audio transmission apparatus and method

Info

Publication number: WO2018058825A1
Application number: PCT/CN2016/112650
Authority: WO
Inventors: 吴敏; 杨福军; 罗清刚
Original assignee: 深圳Tcl新技术有限公司
Priority date: 2016-09-29
Filing date: 2016-12-28
Publication date: 2018-04-05
Also published as: CN106341910A

Abstract

Disclosed is an audio transmission apparatus. The audio transmission apparatus comprises a wireless access module dedicated for being connected to a wireless sound box and establishing a first wireless local area network, wherein the wireless access module obtains audio data and outputs the current obtained audio data to the wireless sound box via the first wireless local area network, so that the wireless sound box plays the audio. Further disclosed is an audio transmission method, comprising the following steps: receiving audio data; determining whether a wireless access module of an audio transmission apparatus establishes a connection with a wireless sound box; and when the wireless access module of the audio transmission apparatus establishes a connection with the wireless sound box, sending the audio data to the wireless sound box, so that the wireless sound box plays the audio. The present invention reduces the bandwidth occupation and time limitation in a data transmission process, and reduces an audio transmission delay.

Description

Audio transmission device and method

Technical field

The present invention relates to the field of audio transmission, and in particular, to an audio transmission apparatus and method.

Background technique

At present, with the development of technology, the speed of electronic product replacement is gradually accelerating. The wireless speaker in the prior art receives the audio data sent by the smart device through the wireless router to play the audio, which is simple and convenient, but when the wireless router forwards the audio data to the wireless speaker, it also connects a plurality of other devices or clients. Wireless speakers need to share wireless media resources with other devices or clients, and the transmission bandwidth and time are limited, which affects the transmission delay.

Summary of the invention

The main object of the present invention is to provide an audio transmission apparatus and method, which aims to reduce transmission bandwidth and time limitation and reduce transmission delay by adding a wireless access module to an audio transmission apparatus.

To achieve the above object, the present invention provides an audio transmission device including a wireless access module dedicated to connecting with a wireless speaker and establishing a first wireless local area network; the wireless access module acquires audio data, and The currently acquired audio data is output to the wireless speaker through the first wireless local area network for the wireless speaker to play audio.

Preferably, the audio transmission device comprises a wireless communication module; the wireless communication module receives audio data forwarded by the audio source through the router, and outputs the currently received audio data to the wireless access module.

Preferably, the audio transmission device further includes a local audio source; the wireless access module acquires audio data in the local audio source, and outputs the currently acquired audio data to the wireless speaker through the first wireless local area network.

Preferably, the audio transmission device further includes a sound box; when the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker acquires audio data and plays audio.

Preferably, the first wireless local area network specifically broadcasts audio data to the wireless sound box through a wireless medium.

In addition, to achieve the above object, the present invention also provides an audio transmission method, where the audio transmission method includes the following steps:

Receiving audio data;

Determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker;

When the wireless access module of the audio transmission device establishes a connection with the wireless speaker, the audio data is transmitted to the wireless speaker for the wireless speaker to play audio.

Preferably, the receiving audio data comprises:

The wireless communication module receives the audio data that the audio source forwards through the router;

The wireless access module acquires audio data received by the wireless communication module.

Preferably, the receiving audio data further includes:

The audio data of the local audio source in the audio transmission device is received by the wireless access module.

Preferably, after determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker, the method further includes:

When the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker in the audio transmission device acquires audio data and plays audio.

Embodiments of the present invention provide an audio transmission device including a wireless access module dedicated to connecting with a wireless speaker and establishing a first wireless local area network; the wireless access module acquires audio data and obtains the currently acquired audio Data is output to the wireless speaker through the first wireless local area network for the wireless speaker to play audio. Thereby reducing the bandwidth occupation and time limitation in the data transmission process, reducing the audio transmission delay and improving the user experience.

DRAWINGS

1 is a schematic diagram of functional modules of a first embodiment of an audio transmission device according to the present invention;

2 is a schematic diagram of functional modules of a second embodiment of an audio transmission device according to the present invention;

3 is a schematic diagram of functional modules of a third embodiment of an audio transmission device according to the present invention;

4 is a schematic diagram of functional modules of a fourth embodiment of an audio transmission device according to the present invention;

FIG. 5 is a schematic flowchart diagram of a first embodiment of an audio transmission method according to the present invention; FIG.

6 is a schematic flow chart of a second embodiment of an audio transmission method according to the present invention;

FIG. 7 is a schematic flowchart diagram of a third embodiment of an audio transmission method according to the present invention; FIG.

FIG. 8 is a schematic flowchart diagram of a fourth embodiment of an audio transmission method according to the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention provides an audio transmission device including a wireless access module 10 dedicated to connecting with a wireless speaker (not shown) and establishing a first wireless local area network; the wireless access module 10 acquires audio data, and The currently acquired audio data is output to the wireless speaker through the first wireless local area network for the wireless speaker to play audio.

The above audio transmission device has the function of WiFi access, and can access the Internet through a router or connect to other smart devices and clients. In this embodiment, by adding the wireless access module 10 as a wireless access point in the audio transmission device, the first wireless local area network associated with the wireless speaker is established, and the first wireless local area network does not need to access the external network. Directly transferring audio data from the audio transmission device to the wireless speaker for the wireless speaker to play audio, thereby avoiding the problem that the audio transmission delay is affected by the simultaneous access of other clients or smart devices to the router during the audio transmission process, thereby The audio transmission speed limit is small and the transmission delay is low. It can be understood that, in this embodiment, on the basis that the audio transmission device originally has the WiFi access function, the audio transmission device can directly download and download audio on the webpage and/or transmit through other smart devices connected under the same WiFi. To obtain audio data; it is also possible to directly process the local audio original data of the audio transmission device directly to the wireless speaker for audio playback without connecting to the external network. It should be noted that the above audio transmission device can be connected to multiple wireless speakers through the first wireless local area network established by the wireless access module 10. The audio transmission device may be configured according to actual needs. In the embodiment, the audio transmission device is a device with an intelligent system, and may be a smart TV, and may be a tablet computer or a smart TV box. Preferably, the wireless local area network is a WiFi wireless local area network based on the 802.11 protocol. Preferably, the above wireless speaker is a WiFi speaker.

Further, referring to FIG. 2, in accordance with a first embodiment of the audio transmission device of the present invention, in the second embodiment of the audio transmission device of the present invention, the audio transmission device includes a wireless communication module 20; and the wireless communication module 20 receives an audio source. The audio data forwarded by a router (not shown) is output to the wireless access module 10.

In this embodiment, the audio source forwards the audio data to the audio transmission device through the router, specifically, the audio processing interface is set in the kernel layer of the device system where the audio source is located, and the audio original data in the audio source is intercepted through the audio processing interface, so that It is not processed by the network protocol stack encapsulation, but is directly transmitted to the wireless transmission module of the audio source through an audio processing program, which speeds up the transmission process and simplifies the transmission step. The driving unit in the wireless transmitting module of the audio source encapsulates the intercepted audio original data according to the basic wifi protocol format, that is, the 802.11 protocol format, and determines whether the current network environment is suitable for transmitting audio data; if applicable, it is encapsulated into 802.11. The audio data of the protocol format is transmitted to the audio transmission device through a router. It can be understood that the transmission process is only for packaging the audio original data and transmitting it to the audio transmission device, and the network environment for transmitting the audio data to the wireless speaker is not the same, so the audio data is relatively reduced in the current network environment. The audio transmission of the speaker further reduces the transmission delay of the router and increases the transmission efficiency of the router.

The wireless communication module 20 is connected to the audio source by using a second wireless local area network established by the router. When the audio data to be played is not in the audio transmission device, the wireless communication module 20 receives the audio source through the second wireless local area network. Audio data, and the received audio data is decapsulated in accordance with the 802.11 protocol format to obtain raw audio data.

Further, an audio processing interface is preset in the system kernel layer of the audio transmission device, and the decompressed audio original data is intercepted, so that it is not processed through the network protocol stack, and is directly sent to the kernel layer interface processing program. The wireless access module 10 speeds up the transmission process and simplifies the transmission step. The driving unit in the wireless access module 10 encapsulates the acquired audio original data in accordance with the 802.11 protocol format. If the current network transmission environment is suitable for transmitting audio data, the wireless access module 10 transmits the encapsulated audio data to a wireless speaker connected in the first wireless local area network. It should be noted that the wireless access module 10 transmits audio data through the first wireless local area network, specifically, the audio data is broadcasted to the wireless speaker through a wireless medium.

It can be understood that the audio data is encapsulated and decapsulated by the transmission protocol format. Therefore, in this embodiment, the wireless speaker needs to be decapsulated after receiving the audio data. Easy to identify or decode. In addition, an audio interface program is also disposed in the system kernel layer of the wireless speaker, mainly processing the decompressed audio raw data, so that it does not need to go through the network protocol stack and directly decode through the decoding chip, thereby making the wireless speaker The speaker plays the audio, and finally realizes the purpose of the wireless speaker playing the audio and the transmission delay is low, thereby reducing the jam of the transmission process and improving the user experience.

Further, referring to FIG. 3, based on the first embodiment of the audio transmission device of the present invention, in the third embodiment of the audio transmission device of the present invention, the audio transmission device further includes: a local audio source 30.

The wireless access module 10 acquires audio data in the local audio source 30, and outputs the currently acquired audio data to the wireless speaker through the first wireless local area network.

It can be understood that the above audio transmission device can also transmit the audio data located in the local audio source 30, thus satisfying the situation that when the audio data is located in the same audio transmission device as the wireless access module 10, the user is provided with more A way to select audio data. Specifically, in the embodiment, the audio processing interface is preset by the system kernel layer of the audio transmission device to intercept the audio original data of the local audio source, and the audio original data is transmitted to the The drive unit in the wireless access module 10 is packaged. If the network environment of the second wireless local area network is suitable for transmitting audio data, the encapsulated audio data is broadcast to the wireless sound box through a wireless medium.

Further, referring to FIG. 4, in the fourth embodiment of the audio transmission device of the present invention, the audio transmission device further includes a speaker 40 according to the first embodiment of the audio transmission device of the present invention. When the wireless access module 10 in the audio transmission device is not connected to the wireless speaker, the speaker 40 acquires audio data and plays audio.

It can be understood that when the wireless access module 10 is not connected to the wireless speaker, the audio transmission device receives the user's instruction and needs to perform audio playback. At this time, the built-in speaker 40 in the audio transmission device can reasonably solve the user's needs and ensure Smooth playback of audio files in a variety of situations.

The present invention also provides an audio transmission method. Referring to FIG. 5, in an embodiment, the audio transmission method provided by the present invention includes:

Step S10, receiving audio data;

Step S20, determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker;

Step S30: When the wireless access module of the audio transmission device establishes a connection with the wireless speaker, the audio data is sent to the wireless speaker for the wireless speaker to play audio.

The above audio transmission device has the function of WiFi access, and can access the Internet through a router or connect to other smart devices and clients. In this embodiment, by adding a wireless access module as a wireless access point in the audio transmission device, the first wireless local area network associated with the wireless speaker is established, and the first wireless local area network does not need to access the external network. When the wireless access module establishes a connection with the speaker, the audio data can be transmitted from the audio transmission device to the wireless speaker for the wireless speaker to play audio, thereby avoiding other clients during the audio transmission process or The simultaneous access of the smart device to the router affects the delay of the audio transmission, thereby making the audio transmission speed limit small and the transmission delay low. It can be understood that, in this embodiment, on the basis that the audio transmission device originally has the WiFi access function, the audio transmission device can directly download and download audio on the webpage and/or transmit through other smart devices connected under the same WiFi. To obtain audio data; it is also possible to directly process the local audio original data of the audio transmission device directly to the wireless speaker for audio playback without connecting to the external network. It should be noted that the foregoing audio transmission device may be connected to multiple wireless speakers through the first wireless local area network established by the wireless access module. The audio transmission device may be configured according to actual needs. In the embodiment, the audio transmission device is a device with an intelligent system, and may be a smart TV, and may be a tablet computer or a smart TV box. Preferably, the wireless local area network is a WiFi wireless local area network based on the 802.11 protocol. Preferably, the above wireless speaker is a WiFi speaker.

Further, referring to FIG. 6, in the second embodiment of the audio transmission method of the present invention, in the second embodiment of the audio transmission method of the present invention, the foregoing step S10 includes:

Step S11, the wireless communication module receives the audio data that the audio source forwards through the router;

Step S12: The wireless access module acquires audio data received by the wireless communication module.

The wireless communication module is connected to the audio source by a second wireless local area network established by the router. When the audio data to be played is not in the audio transmission device, the wireless communication module receives the audio data sent by the audio source through the second wireless local area network. And de-encapsulating the received audio data in accordance with the 802.11 protocol format to obtain the original audio data.

Further, an audio processing interface is preset in the system kernel layer of the audio transmission device, and the decompressed audio original data is intercepted, so that it is not processed through the network protocol stack, and is directly sent to the kernel layer interface processing program. The wireless access module speeds up the transmission process and simplifies the transmission step. The driving unit in the wireless access module encapsulates the acquired audio original data according to an 802.11 protocol format. If the current network transmission environment is suitable for transmitting audio data, the wireless access module transmits the encapsulated audio data to a wireless speaker connected to the first wireless local area network. It should be noted that the wireless access module transmits audio data through the first wireless local area network to transmit audio data to the wireless speaker through a wireless medium.

Further, referring to FIG. 7, in the third embodiment of the audio transmission method of the present invention, in the third embodiment of the audio transmission method of the present invention, the foregoing step S10 further includes:

Step S13, receiving, by the wireless access module, audio data of a local audio source in the audio transmission device.

It can be understood that the foregoing audio transmission device can also transmit the audio data located in the local audio source through the wireless access module, thereby satisfying the situation that when the audio data is located in the same audio transmission device as the wireless access module, Provides a variety of ways to select audio data. Specifically, in the embodiment, the audio processing interface is preset by the system kernel layer of the audio transmission device to intercept the audio original data of the local audio source, and the audio original data is transmitted to the The drive unit in the wireless access module is packaged. If the network environment of the second wireless local area network is suitable for transmitting audio data, the encapsulated audio data is broadcast to the wireless sound box through a wireless medium.

Further, referring to FIG. 8, in the fourth embodiment of the audio transmission method of the present invention, the foregoing step S20 includes:

Step S40: When the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker in the audio transmission device acquires audio data and plays audio.

It can be understood that when the wireless access module is not connected to the wireless speaker, the audio transmission device receives the user's instruction and needs to perform audio playback. At this time, the built-in speaker in the audio transmission device can reasonably solve the user's demand, ensuring more In the case of smooth playback of the audio file.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

An audio transmission device, comprising: a wireless access module dedicated to connecting with a wireless speaker and establishing a first wireless local area network; the wireless access module acquiring audio data and acquiring the currently acquired audio Data is output to the wireless speaker through the first wireless local area network for the wireless speaker to play audio.
The audio transmission device according to claim 1, wherein said audio transmission device comprises a wireless communication module; said wireless communication module receives audio data forwarded by an audio source through a router, and outputs the currently received audio data to the The wireless access module.
The audio transmission device according to claim 2, wherein said audio transmission device further comprises a local audio source; said wireless access module acquires audio data in a local audio source, and passes the currently acquired audio data through The first wireless local area network is output to the wireless speaker.
The audio transmission device according to claim 2, wherein said audio transmission device further comprises a speaker; said speaker is acquired when a wireless access module in said audio transmission device is not connected to said wireless speaker Audio data and play audio.
The audio transmission device according to claim 2, wherein said first wireless local area network specifically broadcasts audio data to said wireless sound speaker via a wireless medium.
The audio transmission device according to claim 1, wherein said audio transmission device further comprises a local audio source; said wireless access module acquires audio data in a local audio source, and passes the currently acquired audio data through The first wireless local area network is output to the wireless speaker.
The audio transmission device according to claim 6, wherein said audio transmission device further comprises a speaker; said speaker is acquired when a wireless access module in said audio transmission device is not connected to said wireless speaker Audio data and play audio.
The audio transmission device according to claim 1, wherein said audio transmission device further comprises a speaker; said speaker is acquired when a wireless access module in said audio transmission device is not connected to said wireless speaker Audio data and play audio.
The audio transmission device according to claim 8, wherein said first wireless local area network specifically broadcasts audio data to said wireless sound speaker via a wireless medium.
The audio transmission device according to claim 1, wherein said first wireless local area network specifically broadcasts audio data to said wireless sound speaker via a wireless medium.
An audio transmission method, characterized in that the audio transmission method comprises the following steps:

Receiving audio data;

Determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker;

When the wireless access module of the audio transmission device establishes a connection with the wireless speaker, the audio data is transmitted to the wireless speaker for the wireless speaker to play audio.
The audio transmission method according to claim 11, wherein said receiving audio data comprises:

The wireless communication module receives the audio data that the audio source forwards through the router;

The wireless access module acquires audio data received by the wireless communication module.
The audio transmission method according to claim 12, wherein the receiving the audio data further comprises:

The audio data of the local audio source in the audio transmission device is received by the wireless access module.
The audio transmission method according to claim 12, wherein the determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker further comprises:

When the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker in the audio transmission device acquires audio data and plays audio.
The audio transmission method according to claim 12, wherein said first wireless local area network specifically broadcasts audio data to said wireless speaker via a wireless medium.
The audio transmission method according to claim 11, wherein the receiving the audio data further comprises:

The audio data of the local audio source in the audio transmission device is received by the wireless access module.
The audio transmission method according to claim 16, wherein the determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker further comprises:

When the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker in the audio transmission device acquires audio data and plays audio.
The audio transmission method according to claim 11, wherein the determining whether the wireless access module of the audio transmission device establishes a connection with the wireless speaker further comprises:

When the wireless access module in the audio transmission device is not connected to the wireless speaker, the speaker in the audio transmission device acquires audio data and plays audio.
The audio transmission method according to claim 18, wherein said first wireless local area network specifically broadcasts audio data to said wireless sound box via a wireless medium.
The audio transmission method according to claim 11, wherein the first wireless local area network specifically broadcasts audio data to the wireless speaker via a wireless medium.