For example, if the sampling rate is 44 kHz, then forty- four thousand, one hundred samples are taken per second. A security camera is placed at the front door and takes snapshots every hour starting at 1pm. If I increase the interval between snapshots of the security camera to every two hours, I'll miss the saleswoman AND the mailman. So, lowering the sampling rate decreases not only the amount of sound information that can be captured, but also the range of frequencies that can be accurately recorded. Keep in mind that although increasing the sampling rate increases the quality of the recorded sound, it also increases the file size.
More space is required to store each second of digitized sound as the sampling rate goes up.
The bit depth measures the number of tones per sample. Bit depth determines how many integer values the digitizer has to choose from when assigning the amplitude of a waveform. Changing the bit depth affects the amount of information that can be captured about a sound and thus affects the quality of the end result. To illustrate this affect, consider three people named A, B and C who are playing a matching game. The idea is that A will show B four photographs, one at a time.