While this rate is supported by the latest computer sound cards, handling that much audio data can tax even high-end systems and reduce video performance. Remember that when establishing the target data rate for compressed video, the audio data rate must be subtracted from the otal, with whatever is left over available for video. Every bit of extra quality we give to the audio side comes straight out of the video side. Simply throwing more data at the audio to improve its quality is not a good solution. The most common data rates used for audio in the multimedia environment are 22.050 KHz and 11.025 KHz, both submultiples of the 44.1 KHz CD rate.
Lower rates are also available, but are really only useful for low-quality voice.
The sample rate we choose determines the maximum frequency that can be reproduced. Sampling theory tells us that the maximum accurately reproducible frequency can be no more than half the sample rate. The sample size determines both the maximum dynamic range and the signal to noise ratio sample. The quality of your audio digitizing card is also important. Many sound cards add the audio input as an afterthought and have serious distortion in their input stages.