Invention Grant
US07711129B2 Method and system for approximating graphic equalizers using dynamic filter order reduction
有权
使用动态滤波器阶数降低近似图形均衡器的方法和系统
- Patent Title: Method and system for approximating graphic equalizers using dynamic filter order reduction
- Patent Title (中): 使用动态滤波器阶数降低近似图形均衡器的方法和系统
-
Application No.: US10799526Application Date: 2004-03-11
-
Publication No.: US07711129B2Publication Date: 2010-05-04
- Inventor: Aram Lindahl , Joseph Mark Williams
- Applicant: Aram Lindahl , Joseph Mark Williams
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Beyer Law Group LLP
- Main IPC: H03G5/00
- IPC: H03G5/00

Abstract:
Improved approaches to flexibly implementing graphic equalizers on media players are disclosed. These approaches provide dynamic order reduction of a multi-band graphic equalizer so that equalizer effects can be timely performed with only limited computational resources. In one embodiment, a media player receives a media item and associated equalizer settings for a multi-band graphic equalizer. The media player can then automatically (i.e., without user action) approximate the multi-band graphic equalizer with the equalizer settings for the media item using a fewer number of filters. Fewer filters means order reduction, and thus reduction in computational requirements. After the multi-band graphic equalizer is approximated, the media player can present the media item to its user in accordance with the reduced complexity, approximated equalizer.
Public/Granted literature
- US20050201572A1 Method and system for approximating graphic equalizers using dynamic filter order reduction Public/Granted day:2005-09-15
Information query