Audio Signals & Digital Signal Processing Questions & Answers

Audio Signals & Digital Signal Processing Questions & Answers air in the ear canal - CORRECT ANSWER - offers greater impedance to the signal coming from the earphone aliasing error - CORRECT ANSWER - in the ADC step. distortion of digital signal caused by too low a sampling rate amplifier - CORRECT ANSWER - increases the signal voltage, current, or both. increased by the addition of power from a direct current source amplifiers are characterized by - CORRECT ANSWER - input signal output signal gain analog acoustic signal - CORRECT ANSWER - continuous signal created from a sound analog meters - CORRECT ANSWER - volume unit (VU) meter analog video signal - CORRECT ANSWER - continuous. analog-to-digital converter (ADC) - CORRECT ANSWER - analog signal converted into digital code antailiasing filter - CORRECT ANSWER - helps avoid errors anti-imaging filter - CORRECT ANSWER - used after the DAC audio signal - CORRECT ANSWER - electrical representation of an acoustic signal audio signals are converted into - CORRECT ANSWER - an electric form to store, transmit, and reproduce sounds audio system - CORRECT ANSWER - group of audio devices connected together audio transducers - CORRECT ANSWER - devices used to convert an acoustic signal into and audio signal azimuth - CORRECT ANSWER - angle of the sound source bandwidth - CORRECT ANSWER - causes frequency distortions bidirectional microphone - CORRECT ANSWER - figure 8 polar plot responds to sounds at the front and back. no response to sound from the sides..