Convert AU to AWB

AMR MP3 Converter converts AU to AWB, and supports more than 90 audio and video files as input, and converts to MP3, WAV, OGG, AMR, AWB, AAC, MP4, M4A, and M4B files. It also supports batch conversion.

1. Free Download AMR MP3 Converter from the following link, and then install the software
   Download Link: http://www.amr-mp3.net/download/amrmp3_converter.exe
   
   
2. Launch AMR MP3 Converter
3. Choose AU Files
   
   
   Click "Add Files" to choose AU files and then add them to conversion list.
   
   
   Choose one or more AU files you want to convert and then click Open.
   
   
4. Choose "to AWB"
   
   
   
   
5. Convert AU to AWB
   
   
   Click button "Convert" to convert all AU files into AWB format.
   
   
   The software is converting AU files into AWB format.
   
   
6. Play & Browse
   
   
   When conversion completes, you can right-click converted item and choose "Play Destination" to play the destination file; or choose "Browse Destination Folder" to open Windows Explorer to browse the destination file.

Free Download AMR MP3 Converter

What is AU?
The Au file format is a simple audio file format introduced by Sun Microsystems. The format was common on NeXT systems and on early web pages. Originally it was headerless, being simply 8-bit u-law encoded data at an 8000 Hz sample rate. Hardware from other vendors often used sample rates as high as 8192 Hz, often integer factors of video clock signals. Newer files have a header that consists of six 32-bit words, an optional information chunk and then the data (in big endian format). Although the format now supports many audio encoding formats, it remains associated with the u-law logarithmic encoding. This encoding was native to the SPARCstation 1 hardware, where SunOS exposed the encoding to apps through the /dev/audio interface. This encoding and interface became a de facto standard for Unix sound.

What is AWB?
Adaptive Multi Rate - WideBand (AMR-WB) is a speech coding standard developed after the AMR using same technology like ACELP. The codec provides excellent speech quality due to wider speech bandwidth of 50-7000 Hz compared to narrowband speech codecs which in general are optimized for POTS wireline quality of 300-3400 Hz. AMR-WB is codified as G.722.2, an ITU-T standard speech code.

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