merge audio and video(having audio) using ffmpeg command
Drop the vorbis audio

ffmpeg -i EnergyVideo.mp4 -i EnergyAudio.mp3 -filter_complex \
"[1:a]volume=enable='between(t,27,33)+between(t,38,42)'[1a];[0:a][1a]amerge=inputs=2[a]" \
-map 0:v -map "[a]" -c:v copy -c:a aac -ac 2 -shortest energyvideooutput2.mp4