Sampling and Bit Rates

Info and More!

What is Sampling? and what effect it has on size and quality

The sampling rate, sample rate,defines the number of samples per unit of time (usually seconds) taken from a signal. The unit for sampling rate is hertz. This makes the size of the file huge. The higher the sampling rate and the more sampling rates between the second, the higher the audio quality will be and the bigger the file size.

What is Bit rate? and what effect it has on size and quality

In telecommunications and computing, bit rate is the number of bits that are processed per unit of time. One byte per second (1 B/s) corresponds to 8 bit/s. Also in Bit rate the size of the file increases and so does the quality.

How can audio be represented in binary?

In order to digital record sound, a microphone is used, a device that converts the

analogue sound into a digital form by altering the output signal from the device.

In order to store this digitally, the voltage is sampled at frequent intervals (typically

48 000 times per second, or 48kHz) and stored as a binary code (typically 16 or 32

bits per sample).This equates to slightly over 1.5 million bits per second, or 88 MB per minute. An 80 minute album stored in such a manner would require 6.9 GB of storage.


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