Easy-to-use and fast batch batch audio converter/extractor. Convert from AC-3, AIFF/AIFC, APE, AU, FLAC, M4A, MKA, MP3, MPA, MPC, OFR, OGG, RA/RAM, SD2, SND, TTA, WAV, WMA, or extract audio from 3GPP/3GPP2, ASF, AVI, VCD DAT, DivX, DV, IVF, MKV, QuickTime MOV, MP4, MPG (MPEG-1, MPEG-2,), OGM, RM, DVD VOB, WMV, XviD, to AIF, AVI, MKA, MP3, OGG Vorbis, WAV, or WMA. M4A output optional. Able to convert without re-encoding if possible.

River Past Audio Converter is an easy-to-use, fast, and powerful batch audio conversion and extractor software. It outputs AIF, AVI, MKA (Matroska Audio), MP3, OGG Vorbis, WAV or WMA. With River Past MPEG-4 Booster Pack installed, you can output to M4A (MPEG-4 AAC audio), the format used by iTune and iPod. It can convert from Dolby Digital AC-3, Apple AIF (AIFF/AIFC), Monkey audio APE, Unix AU, FLAC (Free Lossless Audio Codec), MP3 (MPEG Layer-3), M4A (MPEG-4 Audio), MKA (Matroska Audio), MPA (MPEG-1 Audio), MPC (MusePack/MPEG Plus), OFR (OptimFROG), OGG Vorbis, RealAudio RA/RAM, SD2 (Sound Designer 2), SND, TTA (The True Audio encoder), WAV and WMA (Windows Media Audio). It can also extract audio from mobile phone 3G video (3GPP/3GPP2), ASF (Advanced Streaming Format), AVI, VCD DAT, DivX, DV, IVF, MKV (Matroska Video), QuickTime MOV, MP4 (MPEG-4 video), MPG (MPEG-1 and MPEG-2 Video), RealMedia RM, OGM (OGG Media), DVD VOB, WMV (Windows Media Video) and XviD. You have the full control over the codec, sample rate, channel, bits per sample, and bitrate settings. For WMA output, you can also choose from a list of Windows Media profiles. Audio Converter Pro adds the ability to preview, trim clip, and to convert audio without re-encoding if possible. Now, you have the ability to add a DirectShow decoding method (file reader, splitter, decoder) to expand the input file format support. No Adware or spyware. DX8 and Windows Media Format 9 runtime required. (download link available on web site). 30 day MONEY BACK GUARANTEE