For example, if you choose to participate in write-on, you will be partially judged on the accuracy of your Bluebooking. Similarly, Bluebooking can provide anybody reviewing a writing sample an easy way to make a âfirst cutâ and divide applications between those that will get a closer look and those that will not.
A spectrum analyzer is a device used to examine the spectral composition of some electrical, acoustic, or optical waveform. Often, it measures the power spectrum.
Back in the late 1970's audio engineers started using Real Time Analyzers, or RTAs, to provide a live display showing the frequency spectrum of audio signals. These early analyzers worked by using a collection of electronic bandpass filters.