MP3 means MPEG-1 Audio Layer 3 and never
equals to MPEG-3 as it looks. MP3 is a widely used format in
internet since 1995 and almost becomes the representative
name of online music. Shortly, MP3 is an audio compression
technology which compresses music to a small file (usually
3-4 MB for each song in MP3 format) with high compression
rate and little loss on sound quality. Owing to its
unprecedented population and wide hardware or software
support, MP3 is surely hardly replaced by other formats in a
ASF is Advanced Streaming Format. It
is an extensible file format developed primarily for storing
synchronized digital video, audio, subtitle streams, or
transmitting data on the internet. ASF is also a multimedia
container of Windows Media Video or Windows Media Audio.
Windows has bundled a free MP3
decoder, ASF Converter can convert mp3 to asf directly. If
professional Fraunhofer IIS MP3 codec is installed, MP3
sound quality will be improved.
ASF Converter which can
convert mp3 to asf file. Select an mp3 file, change
audio encoding bitrate if necessary, rename the output file to asf
AMR means Adaptive Multi-Rate. AMR is
an audio mainly applied to mobile devices. With relatively
high compression rate, it makes good effect in voice call.
AMR ringtone format is one of the universal file format
adopted by MMS ,which could not only be used to create music
files but also produce some audio works like funny voice,
animalsí voice, etc. Besides, AMR is declared as the most
widely used voice standards in mobile communication system
by the European Telecommunications Standardization
Committee. AMR also has been selected as the broadband
standard speech codec of the 3GWCDMA and GSM by 3GPP (3rd
Generation Partnership Project).
To convert amr to asf, please install
AWB format is called True Tones. AWB
is firstly adopted in NOKIA3300 in the form of ringtones and
it is said to be able to simulate natural sound effectively
by NOKIA. AWB is affirmative that its size is quite small
with a 4-minute-long song only taking up 600 to 700KB, thus
AWB may be said to be the upgrade of AMR. But actually AWB
is less able to restore the natural music than some other
formats sound do like MMF, MP3 and so on.
To convert awb to asf, please install
its codec or HDX4 player.