AES Store

Journal Forum

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

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Multidimensional Perceptual Calibration for Distortion Effects Processing Software

Controlled non-linear distortion effects processing produces a wide range of musically useful outputs, especially in the production of popular guitar sounds. But systematic control of distortion effects has been difficult to attain, due to the complex interaction of input gain, "drive" level, and "tone" controls. Rather than attempting to calibrate the output of commercial effects processing hardware, which typically employs proprietary distortion algorithms, a realtime software-based distortion effects processor was implemented and tested. Three distortion effect types were modeled using both waveshaping and a second order filter to provide more complete control over the parameters typically manipulated in controlling effects for electric guitars. The motivation was to relate perceptual differences between effects processing outputs and the mathematical functions describing the non-linear waveshaping producing variation in distortion. Perceptual calibration entailed the following listening sessions: First, listeners adjusted the tone of each of nine test outputs, then they made both pairwise dissimilarity ratings and attribute ratings for those nine stimuli. The results provide a basis for an effects-processing interface that is perceptually-calibrated for system users.

Authors:
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