sampling transformation
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2021 ◽  
Vol 15 (4) ◽  
pp. 400-423
Author(s):  
James G. McNally

AbstractBetween 1988 and 1991, the rap album took flight. Under the dual impetus of innovations in sampling, and of the album form itself, an explosion of youthful creativity ensured the rap album, mined for more self-consciously artistic potential, emerged as a multi-layered artform that revealed a similarly multi-layered Black genius. For innovators like the Bomb Squad (Public Enemy, Ice Cube, Son of Bazerk), Prince Paul (De La Soul) and others, the rap album was now often “more” than just a rap album. It could at once take on the characteristics of a radio show, a simulated game show, a talking comic book, a picaresque novel, an Afrofuturist vaudeville, or a visit to the movies—and, through any of these, invoke a multitude of stories and critiques from marginalized young Black perspectives.Drawing on a variety of ideas from Black American cultural studies, particularly those focused on creative transformation as a form of transcendence, this article analyzes the multi-layered creativity of one of this period's most unsung, yet ultimately important albums: KMD's showpiece of sampling transformation and satiric narrative wit, Mr. Hood. Best known as the album that initiated the career of the MC/producer later known as MF DOOM (arguably the most revered figure in underground rap post-1999), it also initiated his surreal approach to sampling non-musical material from sources in popular culture and envisagement of rap as a kind of modern-day folklore. Attempting to find a new way of working across the layers of the rap album—the magical interplay of mood, beat, references, verbal samples, storytelling, etc.—the article argues that such sample-based flights of the imagination represent a continuation of the Afro-magical tradition Theophus Smith calls Conjuring Culture.


1979 ◽  
Vol 36 (12) ◽  
pp. 1454-1463 ◽  
Author(s):  
John A. Downing

Solutions are offered to the problems of data transformation and the design of efficient programs for sampling the benthos of lakes and large rivers. All types of benthic animals from many types of substrate, sampled with diverse sampling gear, are aggregated in a similar fashion. Aggregation can be indexed by the unbiased exponent of the power relationship between density and variance. A single variance stabilizing transformation can be used for all macrobenthos population data since the relationship of sample variance to mean density is similar in all taxa of benthic animals. Stabilized variance in population data satisfies one of the main assumptions of the analysis of variance and allows use of normal statistics provided that the other assumptions are met. The fourth-root transformation stabilized the variance in all macrobenthos samples while either the commonly used square root or logarithmic transformations did not. Sampling programs can be optimized empirically. Standard deviation (s) is predictable from mean density (M; m−2) and sampler size (A; cm2) from the equation: log10s = 0.581 + 0.696 log10M − 2.82 × 10−4 A. The data show that it is easier to obtain a precise estimate of macrobenthos density at high densities. Small diameter samplers are most efficient in obtaining high levels of precision. Data were taken from the literature. Key words: aggregation, benthos, freshwater, regression, sampling, transformation


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