What is the formula for calculating the bit rate in terms of sampling frequency and sample size?

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Study for the OCR GCSE Computer Science Exam. Prepare with flashcards, multiple choice questions, and hints. Get exam-ready with practical questions and answers!

The formula for calculating the bit rate involves understanding how digital audio or video is represented. The bit rate is determined by the product of the sampling frequency and the sample size.

Sampling frequency refers to how many samples are taken per second. The sample size indicates the number of bits used to represent each sample. Thus, by multiplying the sampling frequency by the sample size, you get the total number of bits that are produced per second, which is the definition of bit rate.

For instance, if you have a sampling frequency of 44,100 Hz (commonly used for audio CD quality) and a sample size of 16 bits, the calculation would be 44,100 samples/second multiplied by 16 bits/sample, yielding a bit rate of 705,600 bits per second. This is a straightforward application of the relationship between these parameters, which is crucial in fields like digital audio processing and transmission standards.

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