2. Mp3
• MP3 stands for MPEG-1 Audio Layer 3
• very compressed file that is popular for music
stored on portable players and on the
Internet because it can reproduce near-CD
quality audio in small file sizes.
• The Meaning of MPEG
• MPEG means "Moving Picture Experts Group"
or "Audio/visual file format"
3. When
• first MP3 files started appearing in the early
1990’s.
• From then on, riding atop the Internet’s
popularity and peer to peer networking.
• MP3 quickly became the audio format of
choice
4. How
• Converting a digital audio track from a music
CD to the MP3 format (or other audio format)
is called "ripping" or "importing," and this
conversion function is built into iTunes,
Windows Media Player and other jukebox
software.
5. Difference between MP3 and MP4
• MP3s are an extension of the MP2 standard, which offers inferior
compression and overall sound. Released in 2003, MP4s are an extension
of Apple’s QuickTime technology, well known for efficient and cost-
effective compression and playback.
• Unlike MP3s, MP4s offer encoding of more media types in addition to
audio such as video, text, and pictures
• Most music devices such as MP3 players support decoding of MP3 files. So
far, few devices are capable of playing MP4s although Apple’s devices such
as iPods and iPhones support MP4 playback.
6. • However, as more and more companies begin
to adopt the superior MP4 standard, MP4
players and other devices such as smart
phones and handheld devices will likely begin
supporting decoding of MP4 files.
7. • Whereas MP3s are strictly audio files, MP4s
are media containers capable of holding
audio, video, text, and images. MP4 is a true
multimedia file format. As media capabilities
continue melding into single devices such as
smart phones and handheld media players, it
is likely that MP4s will replace MP3s as the
standard media file.
