Kabuu Audio Converter is a multithreaded audio converter and extractor. It can convert any file to mp3, m4a, flac, alac, wav, ogg, opus. You can also extract audio from video files like mp4, avi, vob, mkv, webm, etc.
Kabuu Audio Converter has several built in presets which make encoding even easier. You can also create your own presets, adjust encoding parameters like bitrate, channel count, sampling rate, bit depth, compression ratio.
Kabuu Audio Converter can extract audio streams from video files. Even if the video file in question has more than one audio stream, Kabuu Audio Converter gives you the option to select the one you want to extract. If your audio tracks have language information, you can configure Kabuu Audio Converter so it can select the language you want for you.
Free application that converts audio files to MP3, AAC, AC3, WMA, FLAC, M4A, OGG, WV, AIFF or WAVformat. Moreover, the program allows extraction of audio tracks from video files without loss of sound quality. Supported input formats: over 70 audio and video formats, including AVI, MP4, MP3, MOV, FLV, 3GP, M4A, MKV, WMA.
MP3packer is a program which can rearrange the data within an MP3 to fulfill specific goals. By default, the program generates the smallest MP3 possible (with the least padding). However, many people also use it to turn VBR files into CBR for use with players which don’t support VBR.
It can save space by storing frame data in the smallest possible frame. Usually MP3s are already stored in the most efficient way possible. However, for high-bitrate CBR files (like -b 320) there can be a lot of wasted space. ~ HydrogenAudio
BatchEncoder is an audio files conversion software. It supports most of popular audio file formats including lossy and lossless compression. The program is very simple to use. BatchEncoder is basically GUI front-end for command-line tools. All it does is create background processes and pass arguments to it with options set in presets/format menu and additionally adds input and output file paths.