Bidirectional audio transmission system based on wireless network and voice song selection method thereof

Abstract

The invention discloses a bidirectional audio transmission system based on a wireless network. The two-way audio transmission system comprises a host, and two or more than two slave machines arrangedin a distributed manner. The host and the slaves are connected through a wireless network. The slave machine comprises a voice input unit and a playing unit, the voice input module receives a voice command of a user and transmits the voice command to the host machine, and the playing module plays audio data returned by the host machine. The host is connected with the media library, and the mastercontrol unit is used for receiving and executing a voice command sent by the slave. Time slot transmission is carried out between the host and the slave through a wireless network. The invention further correspondingly discloses a voice song selection method of the system, high-speed and bidirectional transmission is realized, and the transmission delay is accurate and controllable.

Description

technical field [0001] The invention relates to the field of audio transmission, in particular to a two-way audio transmission system based on a wireless network and a voice song selection method thereof. Background technique [0002] Wireless data transmission is currently used in various fields, among which audio wireless transmission is particularly closely related to us. Traditional mobile phone walkie-talkies with daily calls, Bluetooth headsets for listening to songs, and wireless microphones for KTV singing concerts, with the scientific level With the development of people's life quality requirements are getting higher and higher, which has produced some new things and upgrades to traditional things. Wired transmission will not only bring inconvenience to installation but also a lot of inconvenience in later maintenance. Replacing wireless transmission can solve this problem. Two questions. This requires the wireless transmission system to have high speed, controllab...

AI Technical Summary

Problems solved by technology

[0004] (1) The ability of 2.4G signal to pass through the wall is poor. For a relatively large family or the layout of the wifi router is not in the center of the house. costs and generate more electromagnetic radiation interference, and also require users to have a deeper understanding of network equipment

[0005] (2) The transmission delay time is uncertain. When there are multiple wifi devices occupying the bandwidth in the home environment, the transmission delay in the wireless network becomes longer, which will cause a delay in the audio playback of the smart speaker, and in severe cases, the sound will be interrupted. On the other hand The soho router used in the home can theoretically connect 256 wifi devices, but due to resource constraints, when there are more than 10 devices, the system will be unstable due to heavy load, showing frequent disconnections or restarts, replacing enterprise-level wifi routers can Solved the problem but the cost skyrocketed

[0006] (3) At present, the existing wifi smart speakers generally have the problem of cumbersome networking operations. Because of the cost and volume, the existing smart speakers do not have keyboards and displays. The operation of technicians in this industry will also fail to connect to the Internet due to environmental factors and complete after several retries, which is more difficult for ordinary users

[0008] The 5.8G private protocol can avoid delays and cumbersome network operations, but the ability to penetrate walls is weak and only suitable for transmission within the unobstructed line of sight

[0009] However, the current wireless network transmission rate is low, the delay is uncontrollable, and only one-way transmission, the user experience is poor

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