| MP3 audio format:
MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players. MP3 is an audio-specific format that was designed by the Moving Picture Experts Group as part of its MPEG-1 standard. The group was formed by several teams of engineers at Fraunhofer IIS in Erlangen, Germany, AT&T-Bell Labs (now a division of Alcatel-Lucent) 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. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 1/11th 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 technique is often presented as relatively similar to the principles used by JPEG, an image compression format. The specific algorithms, however, are rather different: JPEG uses a built-in vision model that is very widely tuned (as is necessary for images), while MP3 uses a complex, precise masking model that is much more signal dependent.
MP3 converter:mp3 audio converter software,mp3 encoder,mp3 decoder
MP3 Converter is a powerful audio converter.
Which can batch-convert audio formats
MP3, WAV, WMA, OGG, APE,
AAC(used by iTunes),FLAC(lossless compression),MP2,MP4,M4A,
MPC(MusePack),AC3,TTA,ofr(OptimFROG),SPX(Speex),Ra(Real audio),
and WavePack
from one to another.
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Key Feature:
1.MP3 converter can batch-convert audio
files from one format to another.Convert files from MP3,
WAV, WMA, OGG, AAC, APE, FLAC, WV,
TTA ,MP2,SPX,MPC,AC3 and MP4 to WAV and backwards.
2.Formats Supported:MP3,OGG,WMA,WAV,AAC(used
by iTunes),FLAC,
APE,AC3,MPC (MusePack),WV(WavePack),SPX(Speex),OptimFROG,
TTA ,Ra(Real audio),MP2.
3.It has a recording function that allows
you to record from line-in (cassette, LP, etc.) streaming audio,
or any other source available on your system .Use the audio recording
feature to record MIDI ,audio file protected by DRM to another audio
format:mp3,wav,wma.
4.Audio cutter utility lets you trim
your music files to remove silence, or unwanted sections.
5.Audio joiner utility lets you join
multiple audio files into one big audio file.
6.Easy to use !Just one click of the
button! Clear-cut interface features large icons for performing
all major actions.
7.Audio volume normalization, re-sampling,
re-channel, and bit rate, auto renaming with tag information
8.Flexible setting. The default parameters of every format work
in most cases, but you can change them easily to best suit your
needs.
9.Supports ID3v1and v2 tag (Artist/Title/Genre and so on).
10.Ease audio Converter can even convert MP3 files from one bitrate
to another to achieve greater MP3 compression. |
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