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You can see that MP3 audio files have audio in the number of bits (in seconds) that the player uses, that is, the bit rate that indicates the quality of the audio.<\/p>\n
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But I am confused with the terms sample rate and sample size. Are they not dependent on bit rate or sound quality? Or can it be explained in understandable terms?<\/p>\n
Audio
\nBit rate<\/p>\n
This is a great article on the three terms you are asking. In summary, here are three definitions.<\/p>\n
Bit rate: the amount of data per second. This can be different in the file (variable bit rate) and can have static values.
\nSample Rate – The rate at which audio is measured per second. It is usually measured in kilohertz (kHz). The usual number you can see is 44.1 kHz. This is directly related to the bit depth or the number of bits measured in each cycle.
\nSo at this point you need to do some math and you can see that the bitrate is in bits per second (usually measured in megabits per second). Therefore, bit rate = sample rate x bit depth. As far as I know, your sample size is just one of these 1-second chunks of data.<\/p>\n
If you run pure math, you will find that these files are very large, but there are some compression algorithms that have been adopted to keep the files low without a significant loss of quality.<\/p>\n
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\nThe sample size or bit depth is included, which is a measure of the number of bits in the sample, which is a direct quality measure. However, this only applies to PCM sampling. For irreversible formats like mp3, the sample size doesn’t really define the quality.<\/p>\n
See Audio Bit Depth for more information.<\/p>\n
Sample rate = No sample rate. Of audio samples transported per second<\/p>\n
Sample size = The sample size determines the maximum dynamic range of a digitized sound. Dynamic range is the ratio of the maximum amplitude to the minimum non-zero amplitude of a signal, generally expressed in decibels (dB).<\/p>\n
The sampling frequency affects the quality of the recorded sound. Therefore, a higher sample rate will improve the quality as the number of bits increases, but will require more data and result in larger files. The bit rate used to store the samples used to store the sampled data also affects the quality of the recording. Bit rate is the amount of space that can be used to store sampled data per second. The higher the bitrate, the better the sound, but more space is required to store the file.<\/p>\n","protected":false},"excerpt":{"rendered":"