Free Audio( WAV, FLAC, M4A, MP4, MP3 ) Converter

Fre:ac( free audio converter ) is a free and open source audio converting and cd ripping utility which can be used to perform the following audio conversion task: wav to mp3, flac to mp3, m4a to mp3, mp4 to mp3, mp3 to wav, mp3 to flac, mp3 to m4a, etc.

Free Open Source WAV, FLAC, M4A, MP4 to MP3 Converter for Windows, Mac & Linux

To use freac for audio converting, simply drag the audio files from Windows explorer to the joblist window, then click the “General setting” item under the “Options” menu, select your desired encoder.

Free Open Source WAV, FLAC, M4A, MP4 to MP3 Converter for Windows, Mac & Linux

Then press the “configure encoder” button to do configuration for the output audio format, choose the output folder and hit the “start encoding” button to convert it.

Free Open Source WAV, FLAC, M4A, MP4 to MP3 Converter for Windows, Mac & Linux

Features

  • Support drag n drop.
  • Allow to pause, resume conversion process at any time.
  • Support batch conversion.
  • Supported input audio formats: mp3, mp4, m4a, flac, wav, wma, aac, aif, aiff, bonk, voc, mp1, mp2, m4b, ogg, au, cda, etc.
  • Supported output audio formats: mp3, flac, mp4, wav, wma, ogg, aac, bonk.
  • Embedded audio player.
  • Write info tags( ID3v1 tags, ID3v2 tags, Vorbis comment tags, MP4 metadata info, WMA metadata info, etc. )
  • Encode on the fly.
  • Supported encoders include:
    • Bonk audio encoder, allow to specify: encoder mode( enable lossless encoding ), stereo mode( enable joint stereo ), quantization, downsampling ratio, predictor size.
    • FAAC MP4/AAC encoder, allow to customize: bitrate per channel, quality, maximum frequency bandwidth, stereo mode, temporal noise shaping, aac object type( main, lc, ltp ).
    • FLAC audio encoder, allow to specify: stereo mode( joint stereo, adaptive joint stereo ), use streamable subset, blocksize, apodization functions, maximum LPC order, Quantized LPC precision, minimum partition order, maximum partition order.
    • LAME MP3 encoder, allow to specify: VBR mode( VBR, ABR, CBR ), VBR quality, Quality, stereo mode( auto, mono, stereo, joint stereo ), CRC, minimum VBR bitrate, maximum VBR bitrate, copyright bit, original bit, private bit, ATH, psycho acoustic model, stream format, ouput sampling rate, highpass frequency and width, lowpass frequency and width.
    • Ogg vorbis encoder, allow to specify: encoding mode( VBR, ABR ), quality.
    • Windows media audio encoder.
    • Windows wave file output.
  • Optimized for multi-core CPU.
  • Portable version available.

Fre:ac works on most common 32-bit and 64-bit Windows, Mac OS X and Linux.

Fre:ac is a free download available from SourceForge.net.


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