scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 24,040
CHAPTER 1A 1f PRIMERFrequency and PowerIn the interest of the reader Id like to begin by informally framing a single concept that will be referred to relentlessly throughout every major section of this dissertation While the following sections of this dissertation are interrelated and sequential they are also designed to be mostly self-contained Rather than repeating or presenting stripped-down description three times this opening section will attempt to present a singular satisfying and accessible introduction to the concept of the 1f pattern and why it is of interest to psychologyMathematically a 1f pattern is simply a signal that has a particular relationship contained within the strength of different frequency components These components can be easily computed utilizing Fourier analysis a technique that recodes any signal using sine and cosine waves Investigating the relationships between wave components of the signal yields useful information about the composition of a dataset While continuous dataset may appear mostly random to the eye Fourier analysis can reveal regular oscillations at different frequencies that may be obscured due to the noisy nature of most natural signals Because frequency is defined as a change over time these measures are always taken over a number of samples with the number of samples per unit limiting which frequencies can be computed Looking at the relationships between frequency components in statistical programs or packages such as MATLAB 2013 or R 2014 is very similar to looking at the equalizer output on iTunes or a hi-fi stereo system Instead of looking directly at the fast-moving voltages that drive a vibrating speaker audiophiles can observe how much each frequency band is contributing to the overall volume by viewing a binned histogram of power Songs do not contain equal volume in each frequency bin In general rap songs have more volume distributed within lower frequencies bass than barbershop quartets Whats driving this discrepancy Obviously Dr Dre uses a range of musical instruments and devices that create epic bass
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA