Real-time Melodic Accompaniment System for Indian Music Using TMS320C6713

An instrumental accompaniment system for Indian classical vocal music is designed and implemented on a Texas Instruments Digital Signal Processor TMS320C6713. This will act as a virtual accompanist following the main artist, possibly a vocalist. The melodic pitch information drives an instrument synthesis system, which allows us to play any pitched musical instrument virtually following the singing voice in real time with small delay. Additive synthesis is used to generate the desired tones of the instrument with the needed instrument constraints incorporated. The performance of the system is optimized with respect to the computational complexity and memory space requirements of the algorithm. The system performance is studied for different combinations of singers and songs. The proposed system complements the already available automatic accompaniment for Indian classical music, namely the sruti and taala boxes.