Noise cancellation controller on DSP kit using LMS algorithm
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Date
2012
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Publisher
University of Management and Technology
Abstract
This paper shows the implementation of a low cost active noise control (ANC) on the DSP Starter Kit TM6713 . The system consists of an error microphone plus a signal amplifier, two powered speakers (primary and secondary source) and the controller (the DSP Starter Kit). The total performance is limited by the DSK features but it is possible to reach 30 dB of acoustic attenuation in narrowband acoustic noises. The fixed-point DSP controller has been programmed with an assembler and a debugger supplied by Texas Instruments, and the final application is built on the Windows operating system environment where the user can easily modify the parameters of the active noise controller (filters taps, convergence factors, leaky factors) with a friendly control panel.
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Keywords
BS Thesis, Adaptive Algorithms, Control Configuration, Noise control