Previous surround schemes project sound in the horizontal plane. Dolby's Pro Logic IIz adds height channel outputs to produce a more enveloping surround experience. Steve Guttenberg Former contributor ...

These days, most of the media we consume is digital. We still watch movies and TV shows, but they’re all packaged in digital files that cram in many millions of pixels and as many audio channels as we ...

You may have heard of the audio formats Dolby Digital and Dolby Digital Plus, but what's the actual difference between them?

Matrix surround decoding, the process of deriving several output channels from a two-channel delivery medium, is nothing new. When Dolby Surround Pro Logic decoding was introduced back in 1987, it ...

I have a 5.1 speaker setup (pretty decent) with a Pioneer VSX-D409 reciever. It has DD, DTS, and Prologic, but not Prologic II (to my knowledge). I'm playing Grand Theft Auto: San Andreas and I was ...

Here's an excellent explanation of Dolby Surround. Pro Logic II is pretty much a refinement of Pro Logic, and although it can produce better results with Dolby Surround than a Pro Logic Decoder can, ...

These days, most of the media we consume is digital. We still watch movies and TV shows, but they’re all packaged in digital files that cram in many millions of pixels and as many audio channels as we ...