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SU CSD 325 - Exam 1 Study Guide

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GradeBuddy CSD 325[Pick the date]Exam 1 Study Guide Fundamentals of Hearing Science - What is the definition of sound? - What are the three basic aspects of sound? Note: Sound production and sound transmission are defined as properties of the source and medium. - What two physical properties allow for vibration in the source and transmitting medium? Note: Density= Amount of mass per unit volume. Vibratory Motion - How does vibratory motion work? Newton’s Laws of Motion - What are Newton's three laws of motion? - What is area of Condensation or Compression? - What is Area of Rarefaction? - Explain Circular Motion - Define period Note: P=1/f Sinusoids - What is a Time Waveform? - Know the relationship between circular motion and the sine wave. - What are the Three Basic Properties of a Sinusoid? (Physical Attributes of Sound) - What is the Starting Phase? - Psychological Correlates of the Physical Attributes of Sound: • Frequency-PitchGradeBuddy CSD 325[Pick the date]• Intensity-Loudness • Phase (No direct subjective correlate) - Speed of Sound: • Determined by the transmitting medium: 1. Air 341 m/sec 2. Water 1433 m/sec 3. Steel 4704 m/sec - Define wavelength - Define: - Amplitude - Peak Amplitude - Peak to Peak Amplitude - Root- Mean- Square- Amplitude (rms): - Note: rms = v Sai^2/N - What is damping? - What is a Low Damped System? - What is a High Damped System? - Why does damping occur? - What is Acoustic Impedance? - What is Resistance (R)? - What is Mass reactance - What is Compliant reactance? - What are the principles of resonance? - What are transducers? - What are two efficient transducers of sound?GradeBuddy CSD 325[Pick the date]Scales of Measurement - What is the nominal scale of measurement? - What is the ordinal scale of measurement? - What is the interval scale of measurement (Linear Scale)? - What is the ratio scale of measurement? Laws of Exponents x^0 = 1 x^a * x^b = x^a+b x^a / x^b = x^a-b (x^a)^b = x^ab Log Laws:log ab = log a + log b log a/b = log a - log b log ab = b log a log 1/a = - log a Logs to Memorize: log 1 = 0 log 2 = .3 log 3 = .5 log 5 = .7 log 6 = .8 log 7 = .85 - Define Power - Define acoustic power - What is the dynamic range of hearing?GradeBuddy CSD 325[Pick the date]- Define intensity - Know how to combine intensity levels and unequal intensity levels. Complex Sounds - What is a simple wave, and what is a complex wave? - Define: - Periodic Wave - Aperiodic Wave - Fourier's Analysis - Harmonic Relation - Spectrum Waveform - Know what the time waveform for an aperiodic wave looks like. Amplitude Spectrum - What is a line spectra? - What is a continuous spectra? - White noise is an aperiodic waveform - What makes complex harmonic waves different? - What is a sawtooth wave? - What is a square wave? - What is a triangular


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