AES Store

Journal Forum

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
5 comments

Access Journal Forum

AES E-Library

Controlled Pre-response Antialias Filters for Use at 96kHz and 192kHz

The design of antialias and reconstruction filters has traditionally presented a dilemma. Minimum-phase filters suffer from increased group delay at high frequencies, which is considered undesirable. Linear phase filters suffer from pre-responses, also sometimes considered undesirable. At high sampling rates, it is possible to ameliorate these effects by suitable tailoring of the response above 20kHz. The paper presents some designs intended for use at 96kHz and 192kHz that are simultaneously optimised in the frequency domain in the range 0-20kHz, and in the time domain wideband. Pre-responses can be penalised more heavily than post-responses, resulting in an asymmetrical impulse response somewhat similar to a minimum phase analogue response. The paper also considers briefly the use of a filter of this type at the end of a recording and reproducing chain that may contain an unknown combination of conventional bandlimiting filters.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

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