With Xilisoft Audio Converter, you can also convert files in batches as well as audio segments, split files, output files to exact size, simultaneously convert a file into different formats, and fully customize your output by adjusting a range of basic and advance parameters. High audio conversion speed is guaranteed with multithreading and multi-core CPU processing both supported.

* Convert between nearly all audio formats (including MP3, WMA, WAV, AAC, FLAC, OGG, APE)
* Extract audio from nearly all video and HD-video formats (including AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4 AVC, AVCHD)
* Full audio output customization
* High-speed multi-file conversion with support for multithreading, multi-core CPU processing, and batch audio conversion

Audio Conversion and Extraction
Convert between different format audio files, extract audio from different format video files

M4A converter
* Audio Conversion
Convert audio files from one form to another, audio formats supported include MP3, WMA, WAV, AAC, FLAC, OGG, APE, etc.
* Audio Extraction
Extract audio from different format video files including HD videos, video formats supported include AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4 AVC, AVCHD, etc.
* High-Speed Audio Conversion
Xilisoft Audio Converter offers high-speed audio conversion with multithreading and multi-core CPU processing fully supported.
* Batch Audio Conversion
Convert multiple files at once with support for batch conversion.

Audio convert
Customized Audio Conversion
Flexible ways to convert audio files to meet specific requirements

MP4 audio converter
* Convert Audio File to Several Formats
Simultaneously convert your file to various formats to meet different requirements.
* Convert Audio Segment
Convert an audio segment or extract an audio segment from a video file to one or several formats.
* Split File
Is your file too large to be transferred to your multimedia device? Simply split it into several smaller chunks by file size or time length.
* Convert Audio File to Exact Size
Output your file to the required size precisely with the aid of Xilisoft Audio Converter’s built-in Bitrate Calculator.
* Output Parameter Adjustment
Adjust a range of basic and advanced output parameters to fully customize your output audio file.

* Play Different Format Files
Xilisoft Audio Converter comes with a versatile media player built-in capable of playing files in all sorts of formats.
* Audio Conversion in Background
Set audio conversions to run in the background and save CPU resources for other applications.
* Action after Audio Conversion
Set this audio converter to auto exit, shut down, stand by, or hibernate your PC after a task is complete so you can concentrate on other things.
* Multilingual Interface
Xilisoft Audio Converter comes with different languages built-in: English, German, Spanish, French, Japanese, Simplified and Traditional Chinese.

References
Input File Formats Supported
Video AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4, DivX, XviD, MOV, RM, RMVB, M4V, VOB, ASF, 3GP, 3G2, SWF, H.261, H.264, DV, DIF, MJPG, MJPEG, DVR-MS, NUT, QT, YUV, DAT, MPV, NSV
AVCHD Video (*.mts, *.m2ts), H.264/MPEG-4 AVC (*.mp4), MPEG2 HD Video (*.mpg; *.mpeg), MPEG-4 TS HD Video (*.ts), MPEG-2 TS HD Video (*.ts), Quick Time HD Video (*.mov), WMV HD Video (*.xwmv), Audio-Video Interleaved HD Video (*.avi)
Audio MP3, WMA, AAC, WAV, CDA, OGG, FLAC, APE, CUE, M4A, RA, RAM, AC3, MP2, AIFF, AU, MPA, SUN AU Format
CD Audio CD
Output File Formats Supported
Audio AAC, AC3, AIFF, APE, AU, FLAC, M4A, MP2, MP3, OGG, RA, WAV, WMA, WAV lossless, WMA lossless

System Requirements
Microsoft® Windows XP (SP2 or later), Windows Vista, Windows 7
1GHz Intel/AMD processor or above
256MB RAM (512MB or above recommended)
100MB space for installation
Super VGA (800?600) resolution, 16-bit graphics card or higher

Homepage - http://www.xilisoft.com/