What you don't know about MP3 format

What you don't know about MP3Tuy music format currently has a lot of audio formats used frequently but still an MP3 audio file format is very popular. So accurate but MP3 format? It was created when? …

We will have a look deeper MP3 in content to this article.What is MP3?

MP3 stands for MPEG-1 Audio Layer 3. At first glance, this looked the words may seem complicated but simple which says the MP3 is just the extension of a file. Or more precisely as a format for digital audio coding, which is used to create the file with the capacity is diminished, while quality obtained is still almost identical to what's shown on a CD player.

The MP3 file is usually we download from the internet or created from using dedicated programs. It can be played by the popular music player software on your computer or the majority of mobile devices today.

MP3 was created when? Who is the person who created the MP3?

As we still know, most of the popular formats of today still often are created by a certain organization in the world and also MP3 is not a exception. It was designed by the Moving Picture Experts Group (MPEG), this is a group responsible for setting standards for encoding audio, or video.

Really it is very hard to determine the exact date that the MP3 was created as well as the date on which it began to become popular in society. But we can still be learned that the MP3 file, first began to appear in the 1990s and published in 1993. When the Internet and peer (peer to peer) is slowly becoming popular then the MP3 also quickly became the audio format was chosen most by good quality and small size.

So why it is so popular?

In the early days of computers and communications, hard drive storage space is very limited. Besides, under the appearance of the Internet, the demand of human information sharing is also enhanced, especially needs to share entertainment content. Users cannot send both a music CD with a capacity of up to 700 MB through the network only by using the Dial-Up 56 Kbps.

Therefore, the researchers and organizations were trying to figure out the new audio format, use the separate algorithm to reduce the volume of data of the audio files, while still keeping the sound was created close to the original sound. The main reasons that MP3, and naturally, it became a popular format in the field format and encoding. MP3 has proved himself to be a top choice when it is likely to reduce the file size twice as many times the original size. Added to that is the creation of MP3 files also so easy that is still not apparent loss of sound.

Mp3 lose capacity?

MP3 encoding algorithms based on work rules on the level of perceived sounds of the tai people. Tai people just have the ability to perceive these sounds are in the frequency range from 20 KHz, 16 Khz sound outside the frequency range that is regarded as meaningless. Moreover, at the same time, to hear the sound with volume, users will be able to perceive the sound volume is very small. Using custom algorithms can distinguish help MP3 sound frequencies too high or too low, and eliminating the unnecessary noises.

Essential words rather than it can compress files by removing the excess sound including noise, sound levels are too high or too low and negative interference of electromagnetic waves caused by instruments on the record. This was also the sound occupies quite a lot of space music.

An important influence on the sound quality of the MP3 file that is the bit rate. There's always a relevance percentage Thuan between bit rate and file size when creating a MP3 file. The greater the rate bit rate also meant that the capacity of the MP3 file is created also grew. The bit rate is usually seen on the Mp3 file has a value between 128 Kbps, 192 Kbps, 256 Kbps, 320 Kbps. This is still fairly low compared to the numbers on the CD there are 1411 Kbps audio standard. Main reducing bit rate down low also contributed to reduced the size of the MP3 file.

Song, alongside the process of removing the unnecessary sounds, MP3 still has some algorithm to compensate the loss that it was removed by creating the audio sound distorting than that still doesn't diminish the perceived quality when compared with compressed MP3 files has not passed. However, those files are compressed with bit rate as low, distorting the sound phenomena happen as much.

The remove the sound in high frequency or low also makes MP3 becomes weak world than the standard music lossless. Especially in the sound of musical instruments in the music instrumentals or experienced concert classical music because of the sound emitted by this instrument are usually very (extremely low frequency) or a scholarship (extremely high frequency). And when they are compressed using MP3, this frequency range was dropped or adjust other than the fact that, for some people, this is really not acceptable.

MP3 lose how much capacity?

If an MP3 file is created using a 128 kbps bit rate with duration 4 minutes will have a capacity of approximately 3.5 MB compared to 40 MB on the master file. This means that its capacity will be reduced to 11 times. Say simply that with these files, the user can increase the number of songs stored on the device to add 11 times. Or minimize download time down 11 times with the use of the files on the CD that was created from the original audio source.

Lyrics link

The success of the MP3cũng, forming a "nightmare" for the music industry when the files were shared illegally. Sometimes users share the MP3 file for each other but they don't even know that they are in violation of copyright music. And for that reason, may be losing its unique status in the future, when the MP3 standard format new birth. In addition to compressing data better, the new standard will have the ability to copy. However, the MP3 have replaced or not that is the story of the future, but for now we still need it.

According To Vietbao.com