From the course: Audio Foundations: Sampling
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How sampling works
From the course: Audio Foundations: Sampling
How sampling works
- [Instructor] Before explaining sampling, it's important to understand how digital audio works. Digital audio is a format in which we store and manipulate audio information as data. Certain characteristics of an analog sound wave like the frequency and amplitude are converted to 1s and 0s that the computer software can read. When we record to a digital format, analog sound is converted into data through a series of snapshots or what we call samples. A sample is taken at a particular time in the audio wave, recording its amplitude, and then this information is converted into binary data. The first really important concept for you to understand in all of this is what's called the sample rate. Now, if you're familiar with this concept, you'll know that the old standard compact disc uses a sample rate of 44.1 kilohertz or 44,100 hertz. So what exactly does this mean? If we're using a sample rate of 44.1 kilohertz, that means…
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