A/52 (A52) is essentially the same thing as AC-3 (AC3), which is Dolby Digital. Dolby Digital is sometimes referred to as DD, as in DD 5.1 (for Dolby Digital for 5.1 channels).Dolby's Audio Coding-3 (AC-3) coding and compression technology was used by Dolby to create Dolby Digital.he AC3 name (without the hyphen) is often used to refer to any audio encoding which can be used for DVD encoding to match Dolby Digital's specification, but is not specifically licensed by Dolby. Contents.
Standard porcelain tile thickness ranges between 1/4- and 3/4-inch thick. In contrast, ceramic tiles range from 1/4- to 3/8-inch in standard thickness. According to the Utah State University Cooperative Extension, thicker tiles are less likely to break or crack than thinner tiles. You may want to choose thicker porcelain tiles for flooring, especially in high-traffic areas.
Grout Lines for Floor Tiles. As a general rule, floor tiles should have grout lines of 1/8 inch or larger, depending on the type and size of tile; most floor tiles are 8 inches by 8 inches, but larger versions are available.Special types, such as slate or quarry tiles, often do not have edges uniform enough to look good with tight spacing.rout Lines for Floor Tiles. As a general rule, floor tiles should have grout lines of 1/8 inch or larger, depending on the type and size of tile; most floor tiles are 8 inches by 8 inches, but larger versions are available.