AES E-Library

AES E-Library

Perceptual Study and Auditory Analysis on Digital Crossover Filters

Document Thumbnail

Digital crossover filters offer interesting possibilities for sound reproduction, but there does not exist many publications on how they behave perceptually. In this research, phase and magnitude errors in digital implementations of linear phase FIR as well as Linkwitz-Riley crossover filters are studied perceptually and by auditory analysis. In a headphone simulation listening experiment we explored the just noticeable level of degradation due to crossover filter artifacts. In a real loudspeaker experiment we explored rough guidelines for 'safe' filter orders of linear-phase FIR crossover filters, which would not produce audible errors. Possibilities to predict the perceived errors were then explored using auditory analysis, including also third-octave magnitude spectrum and group delay as simple auditory correlates. Linear-phase FIR crossovers were found to produce different kind of phase errors than Linkwitz-Riley crossovers. The auditory analysis can qualitatively explain the perceptibility degradation.

AES Convention: Paper Number:
Publication Date:

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