Early 5.1 channel headphones actually contained multiple tweeters mounted at different positions inside each ‘can’ which apparently weren’t very convincing, but this better approach is more of an emulation – one that relies on the fact that you only have two ears. Reading the specs of these headphones, I discovered that they license a technology called Dolby Headphone – some clever signal processing developed by Lake DSP in Sydney. The problem is that I have a lot of content with DTS audio which the chips in these products don’t support, not to mention MP4 files with multichannel AAC audio. With some more reading I discovered that these hardware solutions will only work with a Dolby Digital source (AC-3). I was recently considering buying gaming headphones with support for Dolby Digital 5.1 channel audio which I could also use for watching films. Though I have owned a surround sound system before, I don’t currently have the space for one.
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