Invention Grant
US07650277B2 System, method, and apparatus for fast quantization in perceptual audio coders
有权
用于感知音频编码器快速量化的系统，方法和装置
- Patent Title: System, method, and apparatus for fast quantization in perceptual audio coders
- Patent Title (中): 用于感知音频编码器快速量化的系统，方法和装置
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Application No.: US10671324Application Date: 2003-09-25
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Publication No.: US07650277B2Publication Date: 2010-01-19
- Inventor: Vinod Prakash , Ashok I Magadum
- Applicant: Vinod Prakash , Ashok I Magadum
- Applicant Address: IN Bangalore, Karnataka
- Assignee: Ittiam Systems (P) Ltd.
- Current Assignee: Ittiam Systems (P) Ltd.
- Current Assignee Address: IN Bangalore, Karnataka
- Agency: Global IP services, PLLC
- Agent Prakash Nama
- Priority: IN64/MAS/2003 20030123
- Main IPC: G10L19/00
- IPC: G10L19/00
Abstract:
A technique to encode an audio signal based on a perceptual model. In one example embodiment, this is accomplished by shaping quantization noise in the spectral lines on a band-by-band basis using their local gains. The noise shaped spectral lines are then fitted within a predetermined bit rate to form an encoded bit stream.
Public/Granted literature
- US20040158456A1 System, method, and apparatus for fast quantization in perceptual audio coders Public/Granted day:2004-08-12
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