Sonification of absolute values with single and multiple dimensions
Lane, David M
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Although auditory displays are effective for the representation of patterns in data, they are generally thought to be less effective for the communication of absolute values [1, 2]. Nonetheless, there are times when it is desirable to represent absolute values with sound. Two experiments were conducted to investigate the limits of representing absolute values with sound and to compare several ways of representing the values. Temporal representations of data led to better performance than the representation with pitch or the redundant use of temporal and pitch representations. We introduce the term ``Mappable Difference'' to refer to the smallest difference in a dimension that can be consistently mapped to a numeric value. Knowing the ``Mappable Difference'' in an auditory dimension can potentially aid display designers in determining the number of absolute values that can be represented by sound.