Real-time swara recognition system in Indian Music using TMS320C6713

Swara is the basic component of Indian Music. Swara recognition is the starting point of music pattern classification in Indian classical music. The recognition of swara in real-time is often required for judging the quality of tone of a vocalist or an instrumentalist. In this age of reality shows of music, a stand alone electronic system for swara recognition is very relevant, where the system would precisely judge the contestant in terms of swara perfection. In this context a swara recognition system is designed and implemented on a Texas Instrumemts Digital Signal Processor TMS320C6713. In this system the fundamental frequency is tracked using FFT algorithm and also using a newly developed algorithm which works efficiently in Digital Signal Processors. The frequency so obtained is wrapped to a single octave. The fundamental frequency is then mapped to twelve distinct values corresponding to twelve semi-notes and displayed in the LED display of the DSP Processor. The efficiency of the system is tested in terms of memory usage and speed.