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.
Porcelain tile. Porcelain tiles are ceramic tiles commonly used to cover floors and walls, with a water absorption rate of less than 0.5 percent. They can either be glazed or unglazed. Porcelain tiles are one type of vitrified tiles, and are sometimes referred to as porcelain vitrified tiles.