Hyundai Motor Company

Kia Motors Corporation

Wangsu Science & Technology Co., Ltd.

Meihui Lu

Hong Chen

Xuan Zhou

Rakan C Chabaan

Shibiao Lv

Mahdi Ali

Nabih Jaber

Kun Hua

The present disclosure relates to a live streaming quick start method and system, which belong to streaming media technology. The method comprises: slicing, by a server, an audio-video stream into slice files, and assigning a sequence number to each generated slice file according to timestamps of the audio-video stream; recording, by the server, key frame information of the audio-video stream; determining, by the server, an initial slice file sequence number in response to a live streaming request sent by a player client; based on the initial slice file sequence number and the recorded audio-video stream key frame information, transmitting, by the server, a start-streaming response file and the initial slice file sequence number to the player client; and resetting, by the player client, timestamps for the start-streaming response file based on a key frame closest to the initial slice file, and decoding and playing the start-streaming response file.

Live streaming quick start method and system

An audio signal enhancement method includes: acquiring an audio signal; estimating a signal-to-noise ratio (SNR) of an audio frame of the audio signal; determining a SNR threshold for the audio frame; selecting an audio signal processing technique according to a comparison of the SNR threshold to the estimated SNR of the audio frame; filtering the audio frame using a Wiener filter applying the selected signal processing technique; and outputting the audio frame filtered using the Wiener filter applying the selected signal processing technique. A first-in, first-out (FIFO) signal processing technique is selected when the estimated SNR of the audio frame is less than the SNR threshold, and a log-energy voice activity detection (VAD) signal processing technique is selected when the estimated SNR of the audio frame is greater than the SNR threshold.

Audio signal quality enhancement based on quantitative SNR analysis and adaptive Wiener filtering

Growing community of inventors

Shanghai, China

Meihui Lu