Adobe 22011292 User Guide - Page 377

ADOBE AUDITION 363 User Guide Quantization Quantization takes place as a part of the analog to digital conversion process as the values of an analog wave are turned into steps. Quantization Noise naturally occurs during this time, caused by sample levels being changed to conform to standard Quantization levels. This noise is heard more often in sounds recorded at low bit resolutions, especially at lower amplitude. RAM Random Access Memory. The memory required to load and run programs. This is what you refer to when you say that your computer has 128 megabytes of memory. RCA Cable This type of cable (sometimes called a phono cable) features RCA plugs or jacks at either end. RCA cables are normally used to connect stereo system components, like receivers, CD players, and cassette decks. Real-Time In computer-based audio, Real-Time generally refers to an operation or function's ability to act, or react, on demand. That is, there is no "wait time" for processing to occur, but rather things are seemingly done in an instantaneous fashion (though this is never really the case when dealing with digital audio, as there is always some amount of processing done). Adobe Audition provides Real-Time effects functionality with most of its effects in the Multitrack View, and a Real-Time preview of effects before they are applied in the Edit View. Resample To recalculate a sound file's samples using a different rate than which the file was originally recorded. Reverb The persistence of a sound after its source has stopped emitting it. (Reverb is a shortened version of the word Reverberation.) Many discrete echoes arrive at the ear so closely spaced in time that the ear can't separate them. Adobe Audition offers three Reverb Effects (Quick Verb, Reverb, and Full Reverb), each with many settings. Rip Ripping is the process of digitally extracting the audio from a compact disc and turning it into a waveform that's usually an identical copy of the original CD track(s). Most newer CD-ROM, CD-R, and CD-RW drives support digital audio extraction. ROM Read Only Memory. Memory that cannot be written to after it is constructed. Most computers have a small amount of ROM that holds software required to boot the computer. Unlike RAM, information in ROM stays when the computer is turned off. Ruler The numbered controls to the right and below the Wave and Session displays. The Horizontal Ruler can measure time, CD frames, time code, samples, and bars and beats in both Edit and Multitrack Views, and includes scrolling and zooming functionality. In the Edit View, the Vertical Ruler measures sample values, normalized values, decibels, or percentage. In Multitrack View, use the Vertical Ruler to scroll through tracks, as well as to control the number of tracks displayed on-screen at once. S/N Ratio Signal-to-Noise Ratio (S/N Ratio) is the difference in level between the average signal level and the average level of the noise floor. SAM The 8-bit signed wave file format (.sam) is popular for building MOD files, since audio in MOD files is 8-bit signed. Many MOD editors allow samples to be inserted from files, or exported to files in this format. 8-bit signed raw format data with the .sam extension is assumed to be 8-bit signed raw data with no header. The sample rate is assumed to be 22050Hz, but the actual sample rate can be changed once the file is loaded using Edit > Convert Sample Type.