Data And MP3 Compression: Understanding Digital
One of the biggest mysteries to many is that data compression is all about and why it is important to me. But before that, you must first understand what information is digital.
MP3 and MP4 generation was generated mainly due to advances in data compression. Let us first take a step back and focus on digital music. There are two types of data in the world: the analog and digital data. Analog data is real-time data, and it is important how we perceive the world. As you listen to music, listening to an analog signal. All we see and hear is analog. So what is the meaning of digital? Digital is a way to store and transfer data. Think of a twelve-inch rule. With this rule, you can measure a distance between 0 and 12 inches. Depending on how good you are to read the rule, you can probably measure to a resolution of 1 / 16 of an inch. Although there are measurable distance between mark 1 / 16 inches, the distance is rather insignificant for you.
At this point, you can store the distance in two ways: 1) You can mark the ruler with a pencil and hold it true, "analog" value 2) for rounding to the nearest 1/16th the value, and save them. This could be indicated as the value "Digital". Digital is a collection of ones and zeros, which represent more than one. Since there are two values, the system is a stand 2 Our standard system is 10 base system. For example: the number is actually 1456: 6x (1) + 5x (10) + 4x (100) + 1x (1000) = 1456 If the number in parentheses is 10 ^ x power. Tested in stand number 100 110 2 0x (1) + 1x (2) + 1x (4) + 0x (8) + 0x (16) + 1x (32) = 38 (decimal) If the number in brackets is 2 ^ x power. This base-2, for example, the number is called "six-bits". A typical "byte" is usually "8-bit". So instead save the number 38, the computer may save a number 100110. So why would you want to do this? There are 6 basic digital-2 against two in the digital base-10.
The answer is simple zeros and ones is much easier to store (It 's like a light switch, on or off). In addition, the base-2 system, there are only two possible solutions. Under-10 solutions in the solution is 10 per issue. Solutions more you have, the better your chances of making mistakes. Now again the analog signal. This type of data, there are an infinite number of solutions. Please note that the error is not great, but it is certainly an error every time. Every time I remember the analog signal, the results differ in some way. Think of your phone. About 5 years ago, all the cell phones were analog. When the area is poor, you have static, distortion and noise. Now, most cell phones are digital. As long as a part of ones and zeros are sent, you will get a full signal every time. (If you send the number of 1.2 or 1.5 or 0.8, it is always a reading of
The signal is immune to noise) If you can not even read the simplest and zeros, you let go completely. Signal clarity is perfect and is repeated as long as the data is present. Music works the same way. The old school tapes are analog signals. These media products are static and noise and will degrade over time. CDs are digital signals. As reading compact, the CD gives you exactly the sound you recorded. The CD itself can degrade over time, but the data will always be kept in its original form. Since the beginning of the digital music stored, the quality of music has remained high and the same standard as it is today. CDs still offer the highest form of music available. The problem with CDs is that the amount of bits required to store a song is high. This leads us to the modern use of data compression and MP3. (And another article for another day)
Pictures/SnapShot :
MP3 and MP4 generation was generated mainly due to advances in data compression. Let us first take a step back and focus on digital music. There are two types of data in the world: the analog and digital data. Analog data is real-time data, and it is important how we perceive the world. As you listen to music, listening to an analog signal. All we see and hear is analog. So what is the meaning of digital? Digital is a way to store and transfer data. Think of a twelve-inch rule. With this rule, you can measure a distance between 0 and 12 inches. Depending on how good you are to read the rule, you can probably measure to a resolution of 1 / 16 of an inch. Although there are measurable distance between mark 1 / 16 inches, the distance is rather insignificant for you.
At this point, you can store the distance in two ways: 1) You can mark the ruler with a pencil and hold it true, "analog" value 2) for rounding to the nearest 1/16th the value, and save them. This could be indicated as the value "Digital". Digital is a collection of ones and zeros, which represent more than one. Since there are two values, the system is a stand 2 Our standard system is 10 base system. For example: the number is actually 1456: 6x (1) + 5x (10) + 4x (100) + 1x (1000) = 1456 If the number in parentheses is 10 ^ x power. Tested in stand number 100 110 2 0x (1) + 1x (2) + 1x (4) + 0x (8) + 0x (16) + 1x (32) = 38 (decimal) If the number in brackets is 2 ^ x power. This base-2, for example, the number is called "six-bits". A typical "byte" is usually "8-bit". So instead save the number 38, the computer may save a number 100110. So why would you want to do this? There are 6 basic digital-2 against two in the digital base-10.
The answer is simple zeros and ones is much easier to store (It 's like a light switch, on or off). In addition, the base-2 system, there are only two possible solutions. Under-10 solutions in the solution is 10 per issue. Solutions more you have, the better your chances of making mistakes. Now again the analog signal. This type of data, there are an infinite number of solutions. Please note that the error is not great, but it is certainly an error every time. Every time I remember the analog signal, the results differ in some way. Think of your phone. About 5 years ago, all the cell phones were analog. When the area is poor, you have static, distortion and noise. Now, most cell phones are digital. As long as a part of ones and zeros are sent, you will get a full signal every time. (If you send the number of 1.2 or 1.5 or 0.8, it is always a reading of
The signal is immune to noise) If you can not even read the simplest and zeros, you let go completely. Signal clarity is perfect and is repeated as long as the data is present. Music works the same way. The old school tapes are analog signals. These media products are static and noise and will degrade over time. CDs are digital signals. As reading compact, the CD gives you exactly the sound you recorded. The CD itself can degrade over time, but the data will always be kept in its original form. Since the beginning of the digital music stored, the quality of music has remained high and the same standard as it is today. CDs still offer the highest form of music available. The problem with CDs is that the amount of bits required to store a song is high. This leads us to the modern use of data compression and MP3. (And another article for another day)
Pictures/SnapShot :
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