Flame: creates mp3 audio files from list in stdin.
Flame is lame wrapper, so it will accept all the options lame does:
# all flac files in current directory:
# encode with fixed bit rate jstereo 128kbs encoding
find . -maxdepth 1 -type f -iname "*.flac" | flame -b 128
# all waw files in current directory:
# encode with fixed bit rate jstereo 128 kbps encoding, highest quality
find . -maxdepth 1 -type f -iname "*.wav" | flame -q 0 -b 128
# all audio files in /home directory, recursively:
# encode with the standard preset to /tmp directory
find /home -type f | flame --preset standard --out-dir /tmp
sudo wget https://raw.githubusercontent.com/fffilo/flame/master/src/flame.sh -O /usr/local/bin/flame
sudo chmod +x /usr/local/bin/flame
sudo rm /usr/local/bin/flame