FLAC - A free, open source codec for lossless audio compression and decompression
LameXP - LameXP is an Audio Encoder Front-End, a graphical user-interface for a number of audio encoders.
Opus Interactive Audio Codec - Opus is a totally open, royalty-free, highly versatile audio codec.
Vorbis - Ogg Vorbis is a fully open, general-purpose compressed audio format for mid to high quality...
LameDropXPd - LameDropXPd is a practical frontend for LAME that makes things easier to the user, as there is no...
LAME - LAME is a high quality MPEG Audio Layer III (MP3) encoder licensed under the LGPL.