Digital Signal Processing Questions & Answers

Digital Signal Processing Questions & Answers 3 basic steps used to convert analog signals into digital signals - CORRECT ANSWER - 1. Sampling 2. Quantization 3. Digitization Acoustic signal is converted by an - CORRECT ANSWER - Analog-to-digital converter Acoustic signal is processed by - CORRECT ANSWER - Digital circuitry Acoustic signal is translated back into an analog signal by the - CORRECT ANSWER - Digitalto-analog converter Advantage of digital signals - CORRECT ANSWER - Not as much noise. After digital signal processing, by what is the digital signal converted back into an analog signal and then transmitted to the ear via the reciever? - CORRECT ANSWER - the digital-to-analog converter. All signals are represented by 2 digits - CORRECT ANSWER - 0 and 1 Analog Acoustic signal - CORRECT ANSWER - A continuous signal. All time points in the signal are computed. Analog Filters - CORRECT ANSWER - used to limit and shape the bandwidth of signal before it is digitized and to filter out distortion after the signal has been converted back into analog signal Anti-imaging - CORRECT ANSWER - a low-pass filter designed to prevent imaging error (high-frequency distortion) at the output of the digital-to-analog converter. (at the receiver) Antialiasing - CORRECT ANSWER - a low-pass filter inserted before the analog-to-digital converter that is used to remove frequencies higher than the Nyquiest frequency. (at the microphone) Binary Code indicates changes between? - CORRECT ANSWER - Two states of a given variable. (Two states typically high and low or on and off) Bit - CORRECT ANSWER - Will either be a 1 or a 0. It is the smallest amount of information that can be processed by a binary computer...