Aluminum Aluminum Chrome: aluminum piston, running in a chrome plated aluminum sleeve Typically used in pylon racing engines Advantages: low friction and tight fit, when properly run Disadvantage: more expensive and more sensitive to foreign object damage see also: ABC
( aac) - "Advanced Audio Coding", next generation audio codec developed by Fraunhofer that seeks to preserve audio quality at lower bitrates High licensing costs have kept this audio codec from the mainstream
Acronym for Advanced Audio Coding Digital Audio Encoding Method used by the MEA110, and recently selected by BMG and Universal Music as the preferred platform for digital music delivery Advanced Audio Coding is highly compatible with digital copy protection protocols and watermarking; requires 25% less bandwidth than MP-3, and delivers a higher quality audio signal than MP-3
Autoclaved aerated concrete AAC is a structural, insulating building material made of a combination of cement, lime, gypsum, and a siliceous material such as flyash from coal burning utilities The percentage of flyash use can be as high as 75% Therefore AAC contributes to the elimination of the flyash disposal problem Although comparable to concrete in strength , AAC weighs approximately 75% less and can be worked like wood
Advance Audio Coding, one of the coding standards adapted in MPEG-2 and MPEG-4, ISO/IEC 13818-7 It has a better compression ratio and audio quality than MPEG-2 Layer 3
An area of clinical practice that attempts to compensate (either temporarily or permanently) for the impairment and disability patterns of individuals with severe expressive communication disorders (ASHA, 1989)
"Advanced Audio Coding", next generation audio codec developed by Fraunhofer that seeks to preserve audio quality at lower bitrates High licensing costs have kept this audio codec from the mainstream
ACCULINK Access Controller An extremely versatile TI/El multiplexer that provides a flexible, highly functional interface between the customer's equipment and public network voice and data services Sold and supported exclusively by Lucent Technologies
Advanced Audio Coding The follow-up codec to MPeG1 Layer3 (MP3) AAC was developed (just like MP3) by the "Fraunhofer Institut für integrierte Schaltungen" AAC sounds better than MP3 - 96kbps compression are sufficient for good sound quality Moreover AAC is secure - that is why Liquid Audio makes use of AAC
Augmentative and Alternative Communication Any communication which supplements or augments speech, including words, sign systems and written sysmbols The user indicates the symbols needed from a book, chart or electronic aid It attempts to provide those with severe expressive disorders with an efficient communication system