If we want to take samples of some analog waveform, as in doing analog to digital conversions at some particular conversion rate, there is an absolute lower limit to the rate of doing conversions ...

Recently, I wrote automated test software for a multichannel data-acquisition system that I had designed, where sampled waveform accuracy and repeatability were very important. The input waveforms ...

Suppose you take a few measurements of a time-varying signal. Let’s say for concreteness that you have a microcontroller that reads some voltage 100 times per second. Collecting a bunch of data points ...

The goal of this paper is to provide methods and directions for specifying an analog-to-digital converter (ADC) when it has to be placed in a digital communication receiver. In this case the ...

In previous installments of the AudioFile, we've talked about basic PCM audio, which encodes audio into a series of numbers that a computer can play or manipulate. We've also discussed the process of ...

Thanks to the ability of digital audio to be perfectly copied, transmitted, and carried in small packages, we may be surrounded by more music and human-made audio programming than at any other time in ...