Around 2:33 in the Video there's a menú for the onscreen buttons and you can also see a toggle for "BoomSound" and it was off when you played the song.
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My Phone: Sprint Blue Galaxy S3
Rom: AOKP(Jellybean) Task & Ktoonsez Run a Train (9/23)
Overclocked to 1.8 Ghz!
Best Phone i have ever owned, great battery life!