Low-delay audio distribution method, module and device based on network card

A distribution device, low-latency technology, applied in electrical components, transmission systems, broadcast transmission systems, etc., can solve problems such as intermittent, real-time audio distribution cannot be guaranteed, affecting the stability of broadcast systems, etc., to achieve high real-time and Accuracy, avoid the effect of lack of real-time

Active Publication Date: 2021-06-08
GUANGZHOU BAOLUN ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a low-latency audio distribution method based on a network card, which can solve the real-time problem of audio distribution. The performance cannot be guaranteed, resulting in intermittent audio during playback, which may even affect the stability of the entire broadcasting system
[0004] The second purpose of the present invention is to provide a low-latency audio distribution module based on a network card, which can solve the problem that the real-time performance of audio distribution cannot be guaranteed, resulting in During the playback process, there are intermittent situations, which may even affect the stability of the entire broadcasting system
[0005] The third purpose of the present invention is to provide a low-latency audio distribution device based on a network card, which can solve the problem that the real-time performance of audio distribution cannot be guaranteed, resulting in During the playback process, there are intermittent situations, which may even affect the stability of the entire broadcasting system

Method used

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  • Low-delay audio distribution method, module and device based on network card
  • Low-delay audio distribution method, module and device based on network card
  • Low-delay audio distribution method, module and device based on network card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, a network card-based low-latency audio distribution method includes the following steps:

[0045] S01: Obtain an audio channel opening instruction sent by the main control module through the broadcast network, so that the specified audio channel is in an open state;

[0046] Specifically, the main control module sends a broadcast network control command packet to the designated port in the application program, configures the low-latency audio distribution module based on the network card (hereinafter referred to as the audio distribution module), and then sends the data packet through the broadcast network, The audio distribution module intercepts the data packets through the hardware, and then separates the network data and configuration data to reduce the configuration difficulty of the main control module for the audio distribution module. At the same time, the audio forwarding and distribution are directly processed by the underlying hardw...

Embodiment 2

[0063] Such as Figure 3-5 As shown, a low-latency audio distribution module based on a network card, including a memory and a processor;

[0064] a memory for storing program instructions;

[0065] The processor is configured to run the program instructions to implement the network card-based low-latency audio distribution method.

Embodiment 3

[0067] Such as Figure 2-7 As shown, a low-latency audio distribution device based on a network card, including a main control module for an external computer and the low-delay audio distribution module based on a network card described in Embodiment 2, the main control module and the network card-based The low-latency audio distribution module is connected through the network.

[0068] Specifically, it also includes an audio distributor for distributing audio data to the target device, an audio data transceiver and a timer for connecting the main control module, and the audio data transceiver, timer, and audio distributor are all connected to the The low-latency audio distribution module connection of the network card. In this embodiment, the audio distribution module acquires control instructions from the main control module through the audio data transceiver, establishes a connection with the target device, and distributes the audio data sent by the main control module in ...

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Abstract

The invention discloses a low-delay audio distribution method based on a network card, a module and a device thereof, and the method comprises the following steps: S1, obtaining an audio distribution instruction sent by a main control module, and requesting audio data from the main control module; S2, acquiring audio data sent by the main control module, and storing the audio data in a cache memory; S3, acquiring timing information of a timer, and regularly sending audio data to the target equipment; and S4, judging whether the cache amount in the cache memory is lower than a preset value or not, if so, executing S1, and if not, executing S3. In the invention, through precise timing of the timer, the device can accurately send the audio data to the target equipment in real time, and a stable playing effect is brought to system audio distribution.

Description

technical field [0001] The present invention relates to the technical field of audio data distribution, in particular to a network card-based low-latency audio distribution method, module and device. Background technique [0002] With the development of the broadcasting industry, the area and scale of broadcasting management are also increasing. Many broadcasting projects have begun to use network digital audio broadcasting instead of traditional analog audio broadcasting. At the same time, the scale of broadcasting equipment can reach hundreds. . Due to the limitation of computer performance, the general network broadcasting equipment does not have the required number of channels for audio distribution, and it is difficult to ensure the real-time performance of audio distribution, resulting in intermittent audio during playback, which may even affect the entire broadcast. System stability. Contents of the invention [0003] In order to overcome the deficiencies of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H20/65H04L29/08
CPCH04H20/65H04L67/568
Inventor 赵定金
Owner GUANGZHOU BAOLUN ELECTRONICS CO LTD
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