Device and method of sending and receiving speech frame

A technology for sending devices and voice frames, which is applied in the field of communication and can solve problems such as the inability to seamlessly connect media units.

Active Publication Date: 2014-01-15
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a device and method for sending and receiving speech frames, to at least solve the problem that the primary and secondary encoding method in the related art cannot seamlessly connect the media unit decoded by the primary encoded data and the media unit restored by the secondary encoding

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  • Device and method of sending and receiving speech frame
  • Device and method of sending and receiving speech frame
  • Device and method of sending and receiving speech frame

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Embodiment Construction

[0037] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0038] figure 1 It is a structural block diagram of a voice frame sending device according to an embodiment of the present invention. Such as figure 1 As shown, the sending device of the speech frame includes: a calculation module 10, which is used to calculate the first preset encoding delay according to the first encoding delay of the first preset encoding algorithm and the second encoding delay of the second preset encoding algorithm. Encoding algorithm and the start position of the encoding synchronization of the second preset encoding algorithm; Encoding module 20 is used to respectively adopt the first preset encoding algorithm and the second preset encoding algorithm to the collected voice a...

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Abstract

The invention discloses a device and method of sending and receiving speech frames. The device of sending speech frames comprises a calculating module which is used for, based on a first coding time delay of a first preset coding algorithm and a second coding time delay of a second preset coding algorithm, respectively calculating initial positions of coding synchronization of the first preset coding algorithm and the second preset coding algorithm; a coding module which is used for, based on the calculated initial positions, respectively employing the first preset coding algorithm and the second preset coding algorithm to code collected speech frames; and a sending module which is used for integrating and sending a current speech frame among the collected speech frames coded by the first preset coding algorithm and a previous speech frame among the collected speech frame coded by the second preset coding algorithm. According to the technical scheme of the invention, primary and secondary coding technologies can better adapt to different coding and decoding algorithms, such that the resistance to packet loss of speech transmission is enhanced while the time delay is low and the bandwidth cost is low.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device and method for sending and receiving voice frames. Background technique [0002] Internet Protocol (IP for short) transmission is the development trend of multimedia communication at present, and the IP network based on packet transmission can only provide best-effort service, and problems such as packet loss, delay and jitter will always be accompanied by The application of multimedia such as voice and image in packet network. At present, technical solutions for solving network packet loss in related technologies mainly include: interleaving, retransmission, and forward error correction. [0003] 1. Interleaving technology is to divide several data packets into a group, and reorder and send the data packets according to certain rules. It is mainly used to resist sudden continuous packet loss. Its advantage is that it will not increase bandwidth overhead, and its disad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 严成安李加周阮亚平包乐辉
Owner ZTE CORP
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