101. On Loudspeaker Linearization Using Pre-Distortion
- Author
-
Agevik, Niklas, Fransson, Henrik, Grunell, Henrik, Jakiel, Patrick, Lundin, Henrik, Agevik, Niklas, Fransson, Henrik, Grunell, Henrik, Jakiel, Patrick, and Lundin, Henrik
- Abstract
In this paper we present a system for linearizing the combined output of a stereo amplifier and loudspeaker through pre-distortion. Removal of room cancellation effects is also discussed. The system uses white noise to estimate an FIR model with the Recursive Least Squares algorithm and experiments show that this can significantly improve the linearity of the sound system. We show that the system can be extended with a nonlinear model and that this indeed can be implemented on a TexasInstruments TMS320C6701 DSP with excellent performance., QC 20130620
- Published
- 2004