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A voice data packet loss processing system and processing method for voice conference

A technology of voice data and voice conferencing, which is applied in transmission systems, data exchange details, and devices for branch offices to provide special services. Highly restore and improve the effect of voice quality

Active Publication Date: 2022-04-12
SICHUAN HUSHAN ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the voice transmission technology through the network is very mature, but for the application scenario of the conference system, which requires very high real-time performance, the wireless voice transmission is mostly carried out in the form of analog modulation, which has weak anti-interference ability and complex on-site deployment.
Network voice transmission mostly adopts udp transmission. In the case of poor network quality, especially in the case of WIFI network, packet loss will inevitably occur. At present, the technology mostly uses the sending end to add redundant error correction codes, and the receiving end performs information The error correction method takes a long time to process, resulting in a large delay between the speaker's voice and the loudspeaker's voice, which is not suitable for conference application scenarios
At the same time, in order to prevent the impact of data packet loss on the voice signal, the existing technology also uses sound smoothing to avoid voice loss caused by packet loss. This single smoothing processing method will cause the entire voice to be distorted to a certain extent. , while increasing the delay, it is not suitable for conference application scenarios

Method used

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  • A voice data packet loss processing system and processing method for voice conference
  • A voice data packet loss processing system and processing method for voice conference
  • A voice data packet loss processing system and processing method for voice conference

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Embodiment 1

[0033] Such as figure 1As shown, a voice data packet loss processing system for voice conferences is specifically applied to a WIFI voice conference system in this embodiment, and specifically includes an audio receiving processing module, an audio packet loss processing module, and an audio switcher.

[0034] Specifically, the audio receiving and processing module is connected to the audio switcher through an audio through channel, and the audio packet loss processing module is respectively connected to the audio receiving and processing module and the audio switcher through an audio packet loss processing channel.

[0035] The audio receiving and processing module is used to decode the data packets received through WIFI and restore them to analog audio signals, and send them to the audio switch and the audio packet loss processing module through the audio direct channel and the audio packet loss processing channel respectively.

[0036] Among them, the audio pass-through cha...

Embodiment 2

[0048] A voice data packet loss processing method for a voice conference, implemented by the above-mentioned voice data packet loss processing system for a voice conference, specifically comprising the following steps:

[0049] The audio receiving and processing module restores the received audio data packets into analog audio signals and sends them to the audio switcher and the audio packet loss processing module respectively through the audio direct channel and the audio packet loss processing channel.

[0050] Such as figure 2 As shown, the audio packet loss processing module detects whether there is a characteristic noise to be coupled, and if it does not exist, the frequency conversion of the received audio signal, the extraction of the characteristic frequency, and the superposition processing of the characteristic frequency noise are performed to obtain the characteristic noise to be coupled; Perform audio smoothing processing on the received audio signal, and couple t...

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Abstract

The invention discloses a voice data packet loss processing system for a voice conference, which is characterized in that it includes an audio receiving and processing module, an audio packet loss processing module, and an audio switcher, and the audio receiving and processing module and the audio switcher pass audio The direct channel is connected, and the audio packet loss processing module is respectively connected with the audio receiving processing module and the audio switcher through the audio packet loss processing channel. The voice data packet loss processing system of the present invention can ensure high fidelity and low delay in the wireless voice transmission process when there is no packet loss in the network; it can also realize voice data repair when packet loss occurs in the network, reducing the impact of data loss, Improve user experience.

Description

technical field [0001] The invention relates to the technical field of network data transmission, in particular to a voice data packet loss processing system and processing method for voice conferences. Background technique [0002] At present, the voice transmission technology through the network is very mature, but for the application scenario of the conference system, which requires very high real-time performance, the wireless voice transmission is mostly carried out in the form of analog modulation, which has weak anti-interference ability and complex on-site deployment. Network voice transmission mostly adopts udp transmission. In the case of poor network quality, especially in the case of WIFI network, packet loss will inevitably occur. At present, the technology mostly uses the sending end to add redundant error correction codes, and the receiving end performs information The error correction method takes a long time to process, resulting in a large delay between the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L65/80H04L65/1101H04L12/18
CPCH04L65/80H04L12/18H04L65/1101
Inventor 张徐辉吴新勇刘念林
Owner SICHUAN HUSHAN ELECTRIC APPLIANCE