METHOD AND DEVICE FOR DETERMINING INTER-CHANNEL TIME DIFFERENCE PARAMETER

Title:

METHOD AND DEVICE FOR DETERMINING INTER-CHANNEL TIME DIFFERENCE PARAMETER

Document Type and Number:

WIPO Patent Application WO/2016/141732

Kind Code:

A1

Abstract:

Provided are a method and a device for determining an inter-channel time difference parameter, which can decrease a calculation amount of a process of searching and calculating the inter-channel time difference parameter during a stereo encoding process. The method comprises: according to a time domain signal of a first channel and a time domain signal of a second channel, determining a reference parameter which corresponds to an acquisition sequence between the time domain signal of the first channel and the time domain signal of the second channel, wherein the time domain signal of the first channel and the time domain signal of the second channel correspond to the same period of time (S110); according to the reference parameter and a limit value Tmax, determining a search range, wherein the limit value Tmax is determined according to a sampling rate of the time domain signal of the first channel, the search range belongs to [-Tmax, 0], or the search range belongs to [0, Tmax] (S120); and based on a frequency domain signal of the first channel and a frequency domain signal of the second channel, performing search processing within the search range to determine a first inter-channel time difference (ITD) parameter corresponding to the first channel and the second channel (S130).

Inventors:

ZHANG XINGTAO (CN)
MIAO LEI (CN)

Application Number:

PCT/CN2015/095097

Publication Date:

September 15, 2016

Filing Date:

November 20, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

G10L19/008

Domestic Patent References:

WO2010142320A1	2010-12-16
WO2007052612A1	2007-05-10

Foreign References:

CN103339670A	2013-10-02
CN101673549A	2010-03-17
CN103403800A	2013-11-20

Other References: