Journal Forum

A Meta-Analysis of High Resolution Audio Perceptual Evaluation - June 2016
2 comments

Synthetic Reverberator - January 1960
3 comments

Sound Board: High-Resolution Audio - October 2015
4 comments

Access Journal Forum

AES E-Library

Efficient Design of the Oversampling Filter for Digital Audio Applications

Document Thumbnail

In digital audio systems, the digital-to-analog (D/A) converter as well as the lowpass filter play an important role. Current trend of implementing the filter uses digital oversampling (or interpolating) filter rather a pure analog filter due to the better performance and the ease of integration in VLSI. However, the direct implementation of the digital oversampling filters usually requires very high order FIR filters to achieve the desired specification. Such a high order filter requires high speed circuitry to perform the multiplications. In this paper, we show that by utilizing the property of half-band filters and a two-stage implementation, the order of the oversampling filter which operating at an oversampling factor of 4 can be reduced and hence the required computation and memory can also be cut down significantly.

Authors:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=5052

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 temporarily free for AES members.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society