Journal Forum

Sound Board: High-Resolution Audio - October 2015

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

Access Journal Forum

AES E-Library

Roundoff Error Analysis of Digital Filters

Document Thumbnail

Digital filtering of audio signals in professional mixing consoles requires low-roundoff-noise digital filter structures which are suitable for realizing very low pole frequencies. Without appropriate choice of the digital filter structure the effects oflimited word length lead to high necessary internal word length of the signal processor. On the basis of a roundoff error analysis a new recursive digital filter structure is compared with already known filter structures, especially for very low cutoff frequencies. With the help of additional zeros in the noise transfer functions (error spectrum shaping) a further reduction of roundoff noise and the suppression of limit cycles can be achieved.

JAES Volume 42 Issue 4 pp. 232-244; April 1994
Publication Date:

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