The Ultimate 5.1dd Dts Surround Test-dvd - -r.k... Link -

: Signals that sweep from low to high frequencies to test the crossover point between your main speakers and the subwoofer. LFE/Subwoofer Calibration

: Exercises the low-frequency effects channel to test bass impact and room resonance. Phase & Polarity Testing The Ultimate 5.1DD DTS Surround Test-DVD - -R.K...

So, why should you use the Ultimate 5.1DD DTS Surround Test-DVD? Here are just a few benefits: : Signals that sweep from low to high

The disc typically contains the following types of test signals (common to "ultimate" test DVDs): Here are just a few benefits: The disc

appears to be a specialized, community-compiled, or custom-authored test disc (often indicated by initials like "R.K.") rather than a mainstream, commercially published retail product. These custom discs are legendary in home theater circles for aggregating the most aggressive surround sound sequences and precise technical sweeps into one place.

This was the main event during the DVD era. The disc typically includes identical musical clips or scenes encoded in both Dolby Digital (DD) and DTS . Back then, the "DTS vs. DD" debate was fierce. DTS used less compression and higher bitrates, and this disc provided the blind A/B testing to settle the argument. Listening to the "stubid" (a common electronic/ambient demo track often found on these discs) in DTS usually revealed a wider soundstage and crisper highs compared to the Dolby counterpart.

: Audio-visual prompts to ensure "lip sync" between the picture and the 5.1 audio stream. Reference Demos