AES E-Library

AES E-Library

Simple High Band Extension Method using Wavelet for the Mobile Devise

Document Thumbnail

This paper suggests the simple higher-frequency band extension (HBE) method based on digital wavelet transform (DWT). The method estimates the missed band through the perceptual coding by using DWT filters. To estimate it from the input signal, the FIR type inverse filter of DWT analysis stage filter is designed. After synthesizing the output wave, we attenuate the overlapped band using the cutoff frequency to get more natural output wave. The method is implemented to behave in real time for variable type of mobile devices such as mobile handsets and mp3 players using ARM9 core as their processing units.

Author:
Affiliation:
AES Conference:
Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=14442

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


AES - Audio Engineering Society