ffconcat version 1.0
file '/data/video-pipeline/HaTramAudio/project/029-Chiec-O-De-Lai-O-Tram-Xe-Buyt-Cuoi/audio/intro-voice.wav'
file '/data/video-pipeline/HaTramAudio/project/029-Chiec-O-De-Lai-O-Tram-Xe-Buyt-Cuoi/audio/intro-silence-2s.wav'