Outline of the Auditory Discrimination Experiments response form
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Outline of the Auditory Discrimination Experiments response form. You can use this outline to perform the experiments and then enter the results in the Google docs form. Direct links are provided to the Web page control panels for each experiment, or you can use the live links to them on the assignments page of the course Web site. The items asked for in the form are highlighted in red below: Pitch Discrimination Simultaneous pairs of pure tones via headphones, one tone to each ear centered around 440 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/440 Simult/Simultaneous Tones.html smallest difference in frequency you could reliably discriminate (in Hz) your percent correct score at that difference the number of trials at that difference centered around 1760 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/1760 Simult/Simultaneous Tones.html smallest difference in frequency which you could reliably discriminate percent correct score number of trials centered around 110 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/110 Simult/Simultaneous Tones.html smallest difference in frequency for reliable discrimination percent correct score number of trials Comment if any general differences were noticed for a particular ear. If so, could you determine whether the cause of the differences was the electronics, the earphones, or your ears themselves? Simultaneous pairs of pure tones heard via loudspeakers by both ears together (any of the frequencies) http://www.phy.duke.edu/~dtl/89S/Experiments/440 Simult/Simultaneous Tones.html http://www.phy.duke.edu/~dtl/89S/Experiments/1760 Simult/Simultaneous Tones.html http://www.phy.duke.edu/~dtl/89S/Experiments/110 Simult/Simultaneous Tones.html Comment on any perceived differences between presentation of each tone to a separate ear and allowing the two tones to be heard together by the same ear(s) Sequential pairs of pure tones (identical signals to left and right channels; either headphones or loudspeakers) centered around 440 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/440 Sequent/Sequential Tones.html smallest difference in frequency you could reliably discriminate your percent correct score at that difference the number of trials at that difference centered around 1760 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/1760 Sequent/Sequential Tones.html smallest difference in frequency which you could reliably discriminate percent correct score number of trials centered around 110 Hz http://www.phy.duke.edu/~dtl/89S/Experiments/110 Sequent/Sequential Tones.html smallest difference in frequency for reliable discrimination percent correct score number of trials Comment on any pattern in the differences between simultaneous and sequential discrimination abilities. Delay-related Effects Sequential Clicks via headphones, one click to each ear http://www.phy.duke.edu/~dtl/89S/Experiments/Click Sep/Click Separations.html Precedence Effect: what was the minimum delay between clicks for which you had a reliable sense of a left or right direction for the sound? (in ms) Sequential Clicks via loudspeakers, both ears hear both clicks http://www.phy.duke.edu/~dtl/89S/Experiments/Click Sep/Click Separations.html Association Time: what was the maximum delay between clicks for which you heard only a single click? Sequential presentation of Trumpet notes via headphones, one note to each ear http://www.phy.duke.edu/~dtl/89S/Experiments/Tpt Sep/Tone Separation.html Precedence Effect: what was the minimum delay between notes for which you had a reliable sense of a left or right direction for the sound? Sequential presentation of Trumpet notes via loudspeakers, both ears hear both http://www.phy.duke.edu/~dtl/89S/Experiments/Tpt Sep/Tone Separation.html Association Time: what was the maximum delay between notes for which you heard only a single note? Comment on any pattern of differences between perception of clicks and trumpet notes separated by various delays. Loudness Discrimination Sequential presentation of 440 Hz pure tones at various sound levels, identical signals to left and right channels, via either headphones or loudspeakers http://www.phy.duke.edu/~dtl/89S/Experiments/440 Level/Tone Levels.html Smallest difference in level you could reliably discriminate (in dB) percent correct score number of trials In General Comment on any other observations, problems, or questions that arose in performing these experiments.
