[audio:http://www.beautifulwork.org/trueangle/ls1.mp3] Audio Recorder : gnome-sound-recorder 2.30.0 Details : recorded as a wav file. MP3 Conversion : ffmpeg Details : ffmpeg -i ls1.wav -ab 320k ls1.mp3 $file ls1.mp3 ls1.mp3: Audio file with ID3 version 2.4.0, contains: MPEG ADTS, layer III, v2, 160 kbps, 22.05 kHz, Monaural $file ls1.wav ls1.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, …