Study Guide for COMD 5070 Exam 1 - Test-Ready Solutions Pack

Study Guide for COMD 5070 Exam 1 - Test-Ready Solutions Pack biofeedback - answer - Visipitch is an example of tech used for ____ frequency difference limen - answer - smallest detectable change in frequency increase - answer - frequency difference limens ____ as stimulus frequency increases increase - answer - as intensity decreases, frequency difference limens ____ multiples - answer - complex tones are periodic (pleasant) if the harmonics are integer ___ of the fundamental frequency decreases - answer - in complex periodic tones, amplitude ___ as frequency of harmonics increases quality - answer - strength or number of harmonics influences our perception of ___ of the tone missing fundamental - answer - phenomenon in which lowest tone is deleted from a complex tone but it is still heard octave - answer - doubling/halving of frequency 12 - answer - number of semitones in an octave 5.9 - answer - each step up in a scale is ___% bigger than the last in frequency intensity level, sound pressure level - answer - two measures of intensity sound level meter - answer - instrument to measure intensity recruitment - answer - abnormal growth in loudness (in hearing disorders) - answer - adults have the lowest hearing thresholds between _____ Hz hearing level - answer - unit used by audiometers to account for difference in hearing thresholds by frequency 1000 - answer - to create a loudness contour, subjects adjust knob until tone is equal in loudness to ___Hz tone equal, much lower - answer - At high intensities, sounds at all frequencies mostly have ___ loudness. At low intensities, sounds at low frequencies have ___ ____ loudness. 6-10 - answer - ___ dB increase perceived as twice as loud 500ms - answer - tones that last less than ____ are perceived as quieter root mean square - answer - method of calculating intensity from graph square, average, square root - answer - root mean square steps: ___ all values, get ___ of squared values, get ___ of average watts - answer - unit of acoustic power acoustic power - answer - describes how much energy is radiated watts/m^2 - answer - unit of intensity 4πr^2 - answer - formula for area of sphere square of distance - answer - intensity diminishes in proportion to ___ from source 1/9 - answer - when 3 units from source, intensity will be multiplied by ___ subglottal pressure, excursions, articulator, oral pressure - answer - louder speech involves more _______, larger vocal fold ____, larger ____ movements, higher _____ Voice Range Profile - answer - measure of dynamic range (how intense voice can be at different frequencies) 10, fundamental frequency - answer - in VRP, collect data at ___ points between highest and lowest ___ intensity - answer - VRP graphs lowest and highest ____ at each pitch in their range high - answer - VRP shows that minimum intensity is highest for ___ frequencies audiogram - answer - A graphic representation of the relation of frequency and the minimum sound intensity for hearing digital - answer - stored as digits (1s and 0s); examples are digital clocks, CDs, mp3 players analog - answer - a device or system that represents changing values as continuously variable physical quantities; example is thermometer, tape measure, microphone voltage representing sound pressure time, amplitude - answer - analog signals are continuous in ___ and ___ ADC, DAC - answer - system converting voltages from microphone into numbers; system converting numbers into voltages for loud speaker bit resolution - answer - _____ determines degree of amplitude precision 2^n - answer - in n bit resolution, number of levels = ____ quantization - answer - process of converting voltage into number (amplitudes) greater - answer - greater number of bits means ___ quantization accuracy input - answer - weak ___ signal uses little of available resolution, resulting in low quality noise - answer - boosting weak input signal will also increase ____ sam