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32 Cards in this Set
- Front
- Back
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The visual field is the seeing as the ______ is to hearing.
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Soundscape.
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Size of pressure change.
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Amplitude
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The number of times per second that the pressure changes repeat.
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Frequency
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The psychological quality of a tone that we describe as "high" or "low."
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Pitch
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Pattern of air pressure changes, traveling through the air at 340 meters per second.
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Sound Wave
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Uninformative, incidental sound in the environment.
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Noise
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Pressure changes occuring in a pattern described by the function sine wave.
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Pure Tone
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Larger amplitudes are associated with this increased perceptual experience.
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Loudness
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Unit of sound. A physical measure related to a psychological experience.
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Decibel
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The measurement of frequency.
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Hertz
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The range of hearing.
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20 Hz to 20,000 Hz.
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Indicates sensitivity to sound changes across the range of hearing.
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Audibility Curve.
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The psychophysically measured area that defines the frequencies and sound pressure levels over which hearing functions.
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Auditory Response Area
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This indicates the number of decibels that create the same perception of loudness at different frequencies.
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Equal Loudness Curve
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Used to produce complex sounds by adding simple components.
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Additive Synthesis
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A plot that indicates the amplitude of the various harmonics that make up a complex tone.
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Frequency Spectrum
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The buildup of sound at the beginning of the tone.
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Attack
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The decrease in sound at the end of the tone.
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Decay
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Repeating pattern of pressure changes.
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Periodic Sounds
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Sound waves that do not repeat.
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Aperiodic Sounds
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The frequency at which something vibrates when it's struck.
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Resonant Frequency
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Occurs when sound waves are reflected back from teh closed end of the auditory canal interact with sound waves that are entering the auditory canal.
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Resonance
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The frequency of a sound is indicated by the place along the Organ of Corti at which nerve firing is highest.
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Place Theorgy of Hearing
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An orderly map of frequencies along the length of the cochlea.
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Tonotopic Map
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Cells are tuned to specific frequencies (characteristic frequencies). This is preserved throughout the auditory system.
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Tonotopic Organization
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The curve related frequency and the threshold intensity for activating an auditory neuron, measured in dB.
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Frequency Tuning Curve
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The frequency to which the neuron is most sensitive.
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Characteristic Frequency
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One tone can mask or decrease our perception of another tone that is occurring at the same time.
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Auditory Masking
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A response to sound of the outer hair cells in which these cells move.
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Motile Response
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This indicates the intensity of masking tones of different frequencies that cause a low-intensity pure tone to become just barely detectable.
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Psychophysical Tuning Curve
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Breaking down a complex tone into a number of sine-wave component. Working backwards.
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Fourier Analysis
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The firing of auditory neurons in synchrony with the phase of an auditory stimulus.
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Phase Locking
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