Implementation of Finite Impulse Response Digital Filter in Digital Signal Processor Kit for Voice Signal Application

Transmission and receiving of voice signal must be clear and understandable. To maintain the voice quality, filtering is needed. Filtering is a part of signal processing to improve the output signal quality. Digital filter is being used for filtering. Finite Impulse Response (FIR) filter has many advantages such as linear phase, stability, and minimum error caused by quantization. In this research, a filter implementation using digital signal processor (DSP) kit device with voice signal as input has been done. Voice signal will experience Analog to Digital Conversion (ADC), filtering and Digital to Analog (DAC) processes. Filtering outputs are heard on the loudspeaker and the graphs are shown on Matlab scope.