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AfterMaster box promises to upgrade all your audio
There have been many attempts at improving the quality of audio sources, but they tend to be limited by where you're listening. Your headphones might automatically tune their sound, but that's not very useful in front of your TV; your television may have a voice booster mode, but you can't take that effect with you. AfterMaster doesn't think you should have to choose. It's trotting out the AfterMaster Pro, a portable box it describes as the first "personal audio remastering device." Hyperbole notwithstanding, it's promising -- it should boost the clarity, "fullness" and volume of most any audio, whether you're listening to music on your phone (through the 3.5mm jack) or sitting down to a movie (via HDMI). It can specifically focus on voice, and it's battery-powered for those times when you're on the road.
