IMedia R093 Practice Exam

Sample rate tells you how often the audio signal is sampled per second when converting analog sound to digital. It is the number of samples taken each second, typically measured in kilohertz. Higher sample rates capture more detail and can represent higher frequencies, following the idea that you can accurately reproduce frequencies up to half the sampling rate. That’s why increasing the rate improves quality but also increases file size and processing needs. The other options refer to different concepts: color depth is about images, compression ratio is about how much data is reduced, and the number of channels is about how many separate audio paths exist. So the description that fits is that it’s the number of samples per second, with higher rates increasing quality and file size.