AES Journal Forum

On the Design of Allpole Filters that Are Perfectly Matched to Specifications

Document Thumbnail

The author describes a general class of polynomial allpole lowpass filters that include the more common allpole filters as special cases. A method is provided to design lowpass filter prototypes that exactly match the frequency domain specification with a continuous range of selectivity and passband ripple. For many applications Butterworth filters can be replaced with filters having a at least one less order. This approach may allow the standard 4th order Butterworth high- and low-pass filters in woofer-tweeter crossover circuits to be replaced by 3rd filters.

JAES Volume 61 Issue 12 pp. 1022-1025; December 2013
Publication Date:

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this report yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this report you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this report and are an AES member then you can login here:

If you are not yet an AES member and have something important to say about this report then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

AES - Audio Engineering Society