microenc is a small Bash shell script for Linux/BSD for encoding directories with audio files to other formats using FFmpeg as encoder.

Features:

• Encodes to MP3, AAC, Vorbis, Opus, AC-3, E-AC-3, DTS, FLAC, ALAC, WavPack, AIFF and WAV audio
• Auto-copying of metadata and, for MP3/AAC/FLAC/ALAC/AIFF, cover art
• Optional high-quality audio resampling
• Requires only ffmpeg and ffprobe

sourceforge.net/projects/microenc