The first time I was in school for electrical engineering (long story), I had a professor who had never worked in the industry. I was in her class and the topic of the day was measuring AC waveforms.

In the consumer electronics world, knowing the difference between root mean square (RMS) and peak power ratings can make or break the performance and clarity of an audio system. In short, RMS power is ...

If you measure a DC voltage, and want to get some idea of how “big” it is over time, it’s pretty easy: just take a number of measurements and take the average. If you’re interested in the average ...

The least-squares fitting of a sinusoidal model to a set of data points is a common procedure in signal processing algorithms. A residual is the difference between the value of one data points and the ...

If you're becoming an audio geek, there's a lot of terminology thrown around among audiophiles that may be a bit hard to follow without added context. If you're new to how music is recorded, mixed, ...

How many times have you poked around a circuit with a digital multimeter (DMM), read an AC voltage value, then gone on your merry way? Ever wonder if your meter is giving you peak value, average value ...