MPA is an audio that doesn’t contain
video, which derives from MPG and belongs to the compressed
format of MPEG1 Level. There’re MPEG Audio Layer-1, MPEG-1
Audio Layer-2 and Audio Layer-3 (becomes MP3)
altogether in MPEG-1 Audio.
Windows Media Audio. WMA is a new audio format developed by
Microsoft well known as MP3. With a higher rate in files
compression and better sound quality than the latter, even
far beyond those of RA.
convert mpa to wma, you do not install the extra mpa decoder
based on DirectShow on your Windows system.
WMA Converter which can
convert mpa to wma file. Select an mpa file, set the start
time, the end time or audio
encoding bitrate if needed. The bitrate is bigger, the file
size is bigger, the audio quality is higher, and vice versa.
Click the Convert button to convert mpa to wma.
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,
animals’ 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 wma, 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 wma, please install
its codec or HDX4 player.