mp3
>> Selasa, 09 Desember 2008
"What is Mp3" - Mp3 is digital form of compression audio streams that came to life after 15 years of acoustic research. Mp3 can make an audio file up to 12 times smaller than the original file. Being so small the mp3file still has all the perceptible audio details, giving up only those that the human ear cannot hear. According to the declaration of engineers from the Fraunhoffer Institute, a pioneer company in the mp3 technology, this system explores the properties of the human ear, trying to maintain the original sound quality, in the boundaries of what is possible. Although it is not as clear as an audio CD, an mp3 still is an enormous realization when it comes to sound quality for such a big compression rate. Another huge advantage the mp3 format represents is the stocking capacity. Five minutes of music on a CD take up about 40 MB, but if they were in mp3 format they could take only 3, 5 MB.
For some, the Mp3s are a dream come true, for others the worst nightmare. In the confusion caused by technological revolution, we still cannot afford not to know what is legal and what is not. Recording companies have suffered great losses because of this format. It is very simple to create and distribute mp3s. But this does not mean you have to give them to others unless you have the right to do that. It is legal to make mp3s out of an audio CD you bought, but it is illegal to give someone copies of those mp3s.
For some, the Mp3s are a dream come true, for others the worst nightmare. In the confusion caused by technological revolution, we still cannot afford not to know what is legal and what is not. Recording companies have suffered great losses because of this format. It is very simple to create and distribute mp3s. But this does not mean you have to give them to others unless you have the right to do that. It is legal to make mp3s out of an audio CD you bought, but it is illegal to give someone copies of those mp3s.
MP3 Music
MP3 is an audio-specific format that was designed by the Motion Pictures Expert Group. A group formed by several teams of engineers at Fraunhofer IIS in Erlangen, Germany, AT&T-Bell Labs in Murray Hill, NJ, USA, Thomson-Brandt, and CCETT as well as others. It was approved as an ISO/IEC standard in 1991. The use in MP3 of a lossy compression algorithm is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio for most listeners, but is not considered high fidelity audio by audiophiles. An MP3 file that is created using the mid-range bit rate setting of 128 kbit/s will result in a file that is typically about 1/10th the size of the CD file created from the original audio source
An MP3 file can also be constructed at higher or lower bit rates, with higher or lower resulting quality. The compression works by reducing accuracy of certain parts of sound that are deemed beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding. It internally provides a representation of sound within a short term time/frequency analysis window, by using psychoacoustic models to discard or reduce precision of components less audible to human hearing, and recording the remaining information in an efficient manner. This is relatively similar to the principles used by JPEG, an image compression format.
The MP3 audio data compression algorithm takes advantage of a perceptual limitation of human hearing called auditory masking. In 1894, Mayer reported that a tone could be rendered inaudible by another tone of lower frequency. In 1959, Richard Ehmer described a complete set of auditory curves regarding this phenomenon. Ernst Terhardt et al. created an algorithm describing auditory masking with high accuracy.
Mp3 is the Most Efficient Way to Play Music
If you want the most portable and easy-to-use device to play music on, you will need an mp3 player and some music stored as mp3 music files. Not only is this the technology that will replace other music players soon, but it is the most advanced way to play music. It’s also so easy to download music from the Internet in mp3 format that you’ll never have to go to a record store again once you have an mp3 player.
MP3 technology is easy to use, but there are a few differences between this and other music technologies. An mp3 player is a digital audio player that organizes and stores mp3 music files, and of course plays them as well. An mp3 player is a more common name for a digital audio player. These players can play other types of files, which are often associated with a brand. Windows Media Audio, Advanced Audio Coding and mp3 music files can be played on these efficient audio players.
There are various other music download formats you may find other than mp3 music files, such as Janus and Fairplay, which are part of some subscription-based music download sites. There are other varieties of patent-free file formats, as well.
Three different types of mp3 players can be found on the market. Flash players are digital audio devices that hold mp3 music files and other file formats on internal or external media such as memory cards. These have storage capacity ranging from 128 megabytes to 8 gigabytes, which is smaller than some other mp3 players. The new iPod Nano would be included in this category, for example. Flash mp3 players can be updates with additional memory, though. These types of mp3 players can often be integrated into USB keydrives, and are very resilient players.
Hard drive mp3 players, or digital jukeboxes, are digital audio players that read mp3 music files from a hard drive. This type of mp3 player has a higher capacity than the flash player; generally from 1.5 gigabytes to 160 gigabytes. This allows people to transfer entire music collections they have on CD to mp3 music files and store them in one digital audio player. Consumers can add downloadable music from various commercial web sites and free music download services as well. There are also hard drive players for video and picture files. These can also be just as portable as the smaller flash players, just slightly bigger. Popular hard drive mp3 players include the Apple iPod, Creative Zen and Microsoft Zune are examples of popular digital jukeboxes.
The last type of mp3 player is the mp3 CD player. These play regular CDs you buy at the store as well as CDs with mp3 music files and other types of downloadable music files. It’s easy to transfer music downloads to CD format. It’s also easy to transfer your CDs into mp3 music files, so you don’t have to worry about your old music collections aver being outdated formats.
MP3 technology is the music format of today, and should remain the top audio technology for quite some time. New gadgets and improved quality should be the only changes to mp3 technology in the near future.
MP3 is an audio-specific format that was designed by the Motion Pictures Expert Group. A group formed by several teams of engineers at Fraunhofer IIS in Erlangen, Germany, AT&T-Bell Labs in Murray Hill, NJ, USA, Thomson-Brandt, and CCETT as well as others. It was approved as an ISO/IEC standard in 1991. The use in MP3 of a lossy compression algorithm is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio for most listeners, but is not considered high fidelity audio by audiophiles. An MP3 file that is created using the mid-range bit rate setting of 128 kbit/s will result in a file that is typically about 1/10th the size of the CD file created from the original audio source
An MP3 file can also be constructed at higher or lower bit rates, with higher or lower resulting quality. The compression works by reducing accuracy of certain parts of sound that are deemed beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding. It internally provides a representation of sound within a short term time/frequency analysis window, by using psychoacoustic models to discard or reduce precision of components less audible to human hearing, and recording the remaining information in an efficient manner. This is relatively similar to the principles used by JPEG, an image compression format.
The MP3 audio data compression algorithm takes advantage of a perceptual limitation of human hearing called auditory masking. In 1894, Mayer reported that a tone could be rendered inaudible by another tone of lower frequency. In 1959, Richard Ehmer described a complete set of auditory curves regarding this phenomenon. Ernst Terhardt et al. created an algorithm describing auditory masking with high accuracy.
Mp3 is the Most Efficient Way to Play Music
If you want the most portable and easy-to-use device to play music on, you will need an mp3 player and some music stored as mp3 music files. Not only is this the technology that will replace other music players soon, but it is the most advanced way to play music. It’s also so easy to download music from the Internet in mp3 format that you’ll never have to go to a record store again once you have an mp3 player.
MP3 technology is easy to use, but there are a few differences between this and other music technologies. An mp3 player is a digital audio player that organizes and stores mp3 music files, and of course plays them as well. An mp3 player is a more common name for a digital audio player. These players can play other types of files, which are often associated with a brand. Windows Media Audio, Advanced Audio Coding and mp3 music files can be played on these efficient audio players.
There are various other music download formats you may find other than mp3 music files, such as Janus and Fairplay, which are part of some subscription-based music download sites. There are other varieties of patent-free file formats, as well.
Three different types of mp3 players can be found on the market. Flash players are digital audio devices that hold mp3 music files and other file formats on internal or external media such as memory cards. These have storage capacity ranging from 128 megabytes to 8 gigabytes, which is smaller than some other mp3 players. The new iPod Nano would be included in this category, for example. Flash mp3 players can be updates with additional memory, though. These types of mp3 players can often be integrated into USB keydrives, and are very resilient players.
Hard drive mp3 players, or digital jukeboxes, are digital audio players that read mp3 music files from a hard drive. This type of mp3 player has a higher capacity than the flash player; generally from 1.5 gigabytes to 160 gigabytes. This allows people to transfer entire music collections they have on CD to mp3 music files and store them in one digital audio player. Consumers can add downloadable music from various commercial web sites and free music download services as well. There are also hard drive players for video and picture files. These can also be just as portable as the smaller flash players, just slightly bigger. Popular hard drive mp3 players include the Apple iPod, Creative Zen and Microsoft Zune are examples of popular digital jukeboxes.
The last type of mp3 player is the mp3 CD player. These play regular CDs you buy at the store as well as CDs with mp3 music files and other types of downloadable music files. It’s easy to transfer music downloads to CD format. It’s also easy to transfer your CDs into mp3 music files, so you don’t have to worry about your old music collections aver being outdated formats.
MP3 technology is the music format of today, and should remain the top audio technology for quite some time. New gadgets and improved quality should be the only changes to mp3 technology in the near future.
Postingan
0 komentar:
Posting Komentar