Application of Digital Filters to Loudspeaker Crossover Networks
This paper addresses the subject of finite duration impulse response (FIR) and infinite duration impulse response (IIR) filters used to implement loudspeaker crossover filters. The filters have been tested on the TMS32020 digital signal processor. In the case of FIR filters, a very compact form of coding has been developed which requires only one convolution to give both the high and low pass filter outputs. Listening tests were performed to evaluate the improvement in the off-axis frequency response obtained by using very high slope filters. An FIR filter for equalizing a tweeter response was also designed.
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.