![]() “The Nyquist Theorem states that in order to adequately reproduce a signal it should be periodically sampled at a rate that is 2X the highest frequency you wish to record.” Why do these specific numbers matter you may ask? This brings us to the concept of the Nyquist theorem and Nyquist frequency: For example, the common sample rates of 44.1 KHz, 48 KHz, and 192 KHz refer to 44,100 samples per second 48,000 samples per second and 192,000 samples per second.Ī waveform signal “chopped” into 16 samples Let’s back up a bit to define some basic terminology: What is a sample rate? What is the Nyquist frequency? What is bit depth? If we take a period of one second of a waveform and chop it up into digital samples, the number of “chops” per second is our sample rate. In order to keep digital artifacts from rearing their ugly heads amongst our delivery of crispy, pristine audio, we must consider our application of sample rate conversions and clock sources. In looking at our digital signal flow there are some important concepts to keep in mind when designing a system. ![]() ![]() The bartender/front-end processor says, “You can order whatever you want, but I’m going to determine when you drink it.” In the modern audio world, we are able to keep our signal chain in the digital realm from the microphone to the loudspeaker longer without hopping back and forth through analog-to-digital (and vice versa) converters. Three digital audio consoles walk into a festival/bar and put in their drink orders. ![]()
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