MP3 (Lossy) Good trade-off between quality and file size. mp3 audio/mp3 audio/mpeg3 audio/x-mpeg-3 audio/x-mpeg application/x-id3 audio/x-mp3 audioconvert ! audio/x-raw-float,rate=$sample_rate,channels=$channels ! audioconvert ! lame bitrate=$bitrate ! id3v2mux Bitrate combo 128 64 Kbps 96 Kbps 128 Kbps 160 Kbps 192 Kbps 320 Kbps