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April 25, 2009 10:07 AM PDT

What'd he say? How to improve home theater dialogue intelligibility

by Steve Guttenberg
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Some of today's DVD and Blu-ray soundtracks are so densely mixed that dialogue can be hard to understand.

When actors' lines are obscured by onscreen mayhem, you may miss important plot details. The dialogue intelligibility problem is even worse for people who are hard of hearing.

Here's a simple fix to improve intelligibility that also works like a charm for quiet, late-night movie watching.

Onkyo's TX-SR805's remote offers direct access to center channel volume.

(Credit: Steve Guttenberg)

Turn up the center channel volume level. Please understand, that's not the same thing as cranking up your receiver's volume control. Raising the center channel volume relative to the left/right and surround channels makes dialogue louder than the music and sound effects, so it's easier to understand what the actors are saying.

The easiest way to make the adjustment is with your receiver or home theater-in-a-box system's remote control. Check and see if your remote has a button marked "Channel Select." My Onkyo TX-SR805 receiver's remote has such a control, marked "CH SEL". It toggles through left, right, center, etc., and once I got to the center I used the "Level -" and "Level +" buttons to adjust the center channel volume.

Experiment to figure out how much louder you want the center channel speaker to be, but start with turning it up by three decibels. That might be enough, but don't hesitate to turn it up higher if that's what you need.

Of course, you can also use the CH SEL feature to boost subwoofer volume to taste whenever you switch movies or CDs. Or adjust the surround channels volume.

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About The Audiophiliac

Ex movie theater projectionist Steve Guttenberg has more or less successfully hitched his future to home theater, but he still pines for the clickity-clack of 35 MM projectors and all the stale popcorn he could eat. Between projectionist gigs he worked as a high-end audio salesman for sixteen years, and produced records for an audiophile label. Oh, and one more thing, nothing annoys Steve more than being confused with the other Steve Guttenberg, the washed-up Police Academy actor. The wordsmith Guttenberg is a frequent contributor to a number of magazines and websites including Home Entertainment, Playback, and Ultimate AV. He is a member of the CNET Blog Network and is not an employee of CNET. Disclosure.

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