Fortunately, more than what MP3 MP4
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Experts answer:1) MP3 (MPEG-1Layer3), is based on the MPEG-1 compression algorithm developed an audio compression algorithm. MP3 is a lossy compression, that is, by abandoning some of the human ear can hear sounds outside the scope of data to improve the compression algorithm. Obviously this calculation Law is not reversible. It can remain essentially the premise of CD-quality, original audio data compressed to 1 * 10 or more. MP3 (MPEGLayer3) is a music format, it can be CD quality digital audio file compressed into very small, and stores it into the computer . In fact, can be compressed into MP3 files 12 times smaller than the CD-ROM file documents. You only need to download a free MP3 from the Internet music player, you can play them on your computer music files. Now, MP3 allows you to enjoy music from the CD files to MP3 files, and then Be stored in the computer. Previously, because music files are very large footprint, it is impossible to store music files on your computer. For example, previously a major general song about 40MB, but with the MP3 compression format, the same song is only about 3MB. MP3 files are compressed so too The small, so not only can easily store, but also to send via e-mail and the Internet. You can also store these files to easy-to-carry portable MP3 player. Because these files are very small and is produced by digital technology, so you can choose a favorite track, since the Have hands-on editing. In essence, this seems to have a digital music jukebox. Now just a few clicks of the mouse, you can customize favorite music accurately. With different tapes and CD, MP3 allows you to arrange the music according to their own play in order, fast and easy! First of all, digital music Not the same as the CD machine jump. Playing, no matter how mobile, portable MP3 players will not jump. This is because the player has no real mechanical movement of parts to do. And the sound quality of digital music will not be as time goes on, "eclipsed." Regardless of file number of old, still sound like you just recorded, End the same. "Beijing Youth Daily," June 28, 2000 2) Audio MP4 format: AACMP4 first one of audio formats, and MPEG-4 is not much relationship, like MP3 and MPEG-3 has nothing to do the same. MP3 is MPEG-1AudioLa yer3 abbreviation; and MP4 is the MPEG-2AAC, completely is an audio compression format, such as the increase in the perfect reproduction of the stereo, multimedia control, noise reduction and other new features, most importantly, MP4 technology through special Digital copyright protection, which is unmatched by MP3 Of. Video MP4 format: MPEG-4 is most preferred in the market MP4 multimedia player that can play AAC, and it can be said is rare. Even the media said to be MPEG4 MP4 abbreviation, which appears to be a fallacy in the past, but after continued speculation business, This fallacy has become the truth. Now if you go to hear the MP4 Computer City, the word is definitely able to play the video format of the concept of multimedia players, and not be able to play audio MP4AAC Walkman. This strange phenomenon occurs not without reason, the above mentioned copyright protection AAC This is also a number of reasons for record companies to support AAC, make your own player supports AAC, have to support the payment of certain royalties or patent fees, other, AAC is also the source of the problem, unlike MP3 then open, on-line source very less, we now have audio MP4 player development is not yet mature, Given the above situation, the public business simply "reincarnated" to MP4 MPEG-4 the same abbreviation such, it also happens to be the next generation of MP3 MP4 is this rule, in addition to support for MP3 music players possess, but also with strong The MPEG-4 video playback capabilities, In addition, Just "4" in the "3" after this point, equivalent to MP4 MPEG-4 is reasonable. This can play video, MP3 players, in fact not be MP4, essentially MP3, video playback only its attachments, known as MP4, purely commercial speculation. This player Bureau Greatly limiting the screen is small (0.8 ~ 1.8 inch), small capacity flash memory to support a particular format (MTV, MP4, MPV and the DMV, etc.), and most are low-end uses such as OLED and CSTN screen, so precise This can only be called to play video MP3 Bale. Generation
Experts answer:1) MP3 (MPEG-1Layer3), is based on the MPEG-1 compression algorithm developed an audio compression algorithm. MP3 is a lossy compression, that is, by abandoning some of the human ear can hear sounds outside the scope of data to improve the compression algorithm. Obviously this calculation Law is not reversible. It can remain essentially the premise of CD-quality, original audio data compressed to 1 * 10 or more. MP3 (MPEGLayer3) is a music format, it can be CD quality digital audio file compressed into very small, and stores it into the computer . In fact, can be compressed into MP3 files 12 times smaller than the CD-ROM file documents. You only need to download a free MP3 from the Internet music player, you can play them on your computer music files. Now, MP3 allows you to enjoy music from the CD files to MP3 files, and then Be stored in the computer. Previously, because music files are very large footprint, it is impossible to store music files on your computer. For example, previously a major general song about 40MB, but with the MP3 compression format, the same song is only about 3MB. MP3 files are compressed so too The small, so not only can easily store, but also to send via e-mail and the Internet. You can also store these files to easy-to-carry portable MP3 player. Because these files are very small and is produced by digital technology, so you can choose a favorite track, since the Have hands-on editing. In essence, this seems to have a digital music jukebox. Now just a few clicks of the mouse, you can customize favorite music accurately. With different tapes and CD, MP3 allows you to arrange the music according to their own play in order, fast and easy! First of all, digital music Not the same as the CD machine jump. Playing, no matter how mobile, portable MP3 players will not jump. This is because the player has no real mechanical movement of parts to do. And the sound quality of digital music will not be as time goes on, "eclipsed." Regardless of file number of old, still sound like you just recorded, End the same. "Beijing Youth Daily," June 28, 2000 2) Audio MP4 format: AACMP4 first one of audio formats, and MPEG-4 is not much relationship, like MP3 and MPEG-3 has nothing to do the same. MP3 is MPEG-1AudioLa yer3 abbreviation; and MP4 is the MPEG-2AAC, completely is an audio compression format, such as the increase in the perfect reproduction of the stereo, multimedia control, noise reduction and other new features, most importantly, MP4 technology through special Digital copyright protection, which is unmatched by MP3 Of. Video MP4 format: MPEG-4 is most preferred in the market MP4 multimedia player that can play AAC, and it can be said is rare. Even the media said to be MPEG4 MP4 abbreviation, which appears to be a fallacy in the past, but after continued speculation business, This fallacy has become the truth. Now if you go to hear the MP4 Computer City, the word is definitely able to play the video format of the concept of multimedia players, and not be able to play audio MP4AAC Walkman. This strange phenomenon occurs not without reason, the above mentioned copyright protection AAC This is also a number of reasons for record companies to support AAC, make your own player supports AAC, have to support the payment of certain royalties or patent fees, other, AAC is also the source of the problem, unlike MP3 then open, on-line source very less, we now have audio MP4 player development is not yet mature, Given the above situation, the public business simply "reincarnated" to MP4 MPEG-4 the same abbreviation such, it also happens to be the next generation of MP3 MP4 is this rule, in addition to support for MP3 music players possess, but also with strong The MPEG-4 video playback capabilities, In addition, Just "4" in the "3" after this point, equivalent to MP4 MPEG-4 is reasonable. This can play video, MP3 players, in fact not be MP4, essentially MP3, video playback only its attachments, known as MP4, purely commercial speculation. This player Bureau Greatly limiting the screen is small (0.8 ~ 1.8 inch), small capacity flash memory to support a particular format (MTV, MP4, MPV and the DMV, etc.), and most are low-end uses such as OLED and CSTN screen, so precise This can only be called to play video MP3 Bale. Generation
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