Abstract: Individual speaker polarity is detected by band-limiting the processing to a range where the impulse response of most speakers are in-phase with their wiring. In the preferred embodiment, a second order 400 Hz Low Pass Filter (LPF) is used to band-limit the processing. Filtering can occur prior to processing as part of the noise generation, or completely as a post-processing operation on a full-bandwidth impulse response. Applying the low pass filter eliminates artifacts in the impulse response due to reverse-polarity wired drivers in a speaker system (e.g., tweeter). By analyzing only the lower frequencies, the initial peak of the impulse response will correlate to speaker polarity in the system.