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H5-13. Waveteks And Audiocart - Masking
Purpose
To demonstrate masking.
Equipment
Tw oscillators, audio amplifier and speakers on Audio Cart.
Setup Time
5 min.
Images
Description
The first oscillator, the "masking" tone, is set to a 500 Hz sine wave at medium intensity. The second is to be the "masked" tone, which will be varied in frequency and in intensity. The second tone is easily masked when its frequency is higher and its amplitude lower than the masking tone. Masking occurs very readily when the second tone is up one octave, twice the frequency of the masking tone. Frequencies below the masking tone are not easily masked, even at relatively low amplitudes.
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See pagesh1. nature of sound
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See pagesh2. wave properties of sound
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See pagesh3. standing sound waves
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See pagesh4. music
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See pagesh5. the ear
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See pagesh6. the voice
-
See pagesh1. nature of sound
-
See pagesh2. wave properties of sound
-
See pagesh3. standing sound waves
-
See pagesh4. music
-
See pagesh5. the ear
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See pagesh6. the voice
Physics Lab Demos