Unlock instant, AI-driven research and patent intelligence for your innovation.

A selection method and storage medium of a modem voice codec

A codec, codec technology, applied in the selection method of modem voice codec and the field of storage media, can solve the problems of silent call drop, noise, voice frame jitter, etc.

Active Publication Date: 2021-09-14
GREE ELECTRIC APPLIANCES INC
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the case of high-speed movement, the signal environment of the mobile phone is constantly changing, which often causes the jitter of the voice frame, including packet loss or delay, and often causes problems such as noise, mute, and call drop

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A selection method and storage medium of a modem voice codec
  • A selection method and storage medium of a modem voice codec
  • A selection method and storage medium of a modem voice codec

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The present invention provides a method for selecting a voice codec of a modem. In this embodiment, the method is applied to a personal terminal. figure 1 It is the flowchart of the selection method of the modem speech codec of the embodiment of the present invention, below in conjunction with figure 1 Each step of the method is described in detail. Such as figure 1 As shown, the method mainly includes the following steps:

[0070] S1: Select a plurality of characteristic parameters used to form training data from the BP side and the AP side, and set the value range of each characteristic parameter.

[0071] Specifically, the characteristic parameters include: the signal-to-noise ratio (Signal to Noise Ratio / Signal to Interferenceplus Noise Ratio, SNR / SINR) of the physical layer (Physical Layer, PHY) on the baseband processor (Base-Band Processor, BP) side, the received signal Channel Power (Receive Signal Channel Power, RSCP), Received Signal Strength Indicator (Rec...

Embodiment 2

[0109] In this embodiment, on the basis of Embodiment 1, step S4 also includes the process of using the comprehensive tester to provide test data and fine-tuning the speech codec classifier obtained in Embodiment 1 to prevent overfitting of training data together affect the training results. image 3 It is a flowchart of obtaining a trained speech codec classifier according to Embodiment 2 of the present invention. Such as image 3 As shown, step S4 specifically includes:

[0110] S41: Based on the training data, through preliminary training, obtain a first speech codec classifier and a first bit rate prediction regressor after preliminary training;

[0111] S42: Under the test network, respectively predict the corresponding first speech codec and the first bit rate through the first speech codec classifier and the first bit rate prediction regressor;

[0112] S43: Based on the type of the test network, perform a matching test on the first speech codec and the first bit rat...

Embodiment 3

[0118] In this embodiment, different from the second embodiment, the process of matching test is not included in step S4, but the effect of preventing over-fitting of the training data is also achieved. Figure 4 It is a flow chart of obtaining a trained speech codec classifier according to Embodiment 3 of the present invention. Such as Figure 4 As shown, step S4 specifically includes:

[0119] S41": Based on the training data, through preliminary training, obtain the first speech codec classifier after preliminary training;

[0120] S42": Provide test data through the comprehensive tester, fine-tune the first speech codec classifier, obtain the fine-tuned fifth speech codec classifier, and use the fifth speech codec classifier as the trained speech codec classifier Decode the classifier.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a method, system and storage medium for selecting a voice codec for a modem, the method comprising: S1: selecting a plurality of characteristic parameters used to form training data from the BP side and the AP side, and setting each of the characteristic parameters range of values; S2: within the range of values, select the value of each characteristic parameter, and form a characteristic vector X from the values ​​of a plurality of characteristic parameters i ; select at least one speech codec that matches the value of a plurality of said characteristic parameters, and form a target vector Y by said at least one speech codec i ; Obtained by the eigenvector X i and the target vector Y i The mapping relationship formed; S3: Repeat step S2, and obtain the training data formed by multiple sets of the mapping relationship; S4: Based on the training data, obtain a trained speech codec classifier through training; S5 : Use the trained speech codec classifier to screen a speech codec that matches the current network.

Description

technical field [0001] The present invention relates to the selection technology of voice codec, in particular to a selection method and storage medium of modem voice codec. Background technique [0002] When making a voice call on a mobile network, the quality of the call is closely related to the signal environment of the current network. Especially in the case of high-speed movement, the signal environment of the mobile phone is constantly changing, which often causes the jitter of the voice frame, including packet loss or delay, and often causes problems such as noise, mute, and call drop. In different network modes such as 2G, 3G, 4G, 5G, etc., the system bandwidth is different, and the supported peak uplink and downlink rates are also different. Voice data frames need to be transmitted on links of different network modes, so it is necessary to select a suitable modem Voice codec to guarantee call quality. The traditional method is to change the codec used in the voic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G10L19/04G10L19/24H04M7/00H04M11/06
CPCG10L19/04G10L19/24H04M7/0072H04M11/066
Inventor 彭丁聪
Owner GREE ELECTRIC APPLIANCES INC