Implementation of real-time partitioned convolution on a DSP board

Convolution using very long filters is required in order to achieve realistic artificial reverberation or spatial effects. Unfortunately, DSP (digital signal processor) platforms have limited computational power (compared with a modern PC) and consequently it is not possible to design very long filters based on typical time-domain, direct-form algorithms, i.e., FIR or IIR structures. To perform this task, other algorithms are necessary. The implementation of a real-time partitioned convolution algorithm on a DSP platform is demonstrated. In this manner, efficient convolution with long impulse responses is attained, with the advantage of low input/output delay.