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EXAMPLES OF USAGE Audio Engineer s often use ''dynamic range'' to describe the ratio of the loudest possible undistorted sound to the quietest or to the noise level, say of a Microphone or Loudspeaker . In digital audio, the maximum possible dynamic range is given by the Bit Resolution . See Signal-to-noise Ratio . Dynamic range of an audio device is also sometimes referred to as the dynamic window. ''To mathematically determine a dynamic range you must add the headroom to the signal to noise ratio. OR take the difference between the ceiling and noise floor of an audio device'' For example: If the ceiling of a device is 10db and the floor is 3db than the dynamic range is 7db. 10-3 = 7 Electronics engineers apply the term to:
In audio and electronics applications, the ratio involved is often so huge that it is converted to a Logarithm and specified in Decibel s. In Music , ''dynamic range'' is the difference between the quietest and loudest volume of a Instrument , Part or piece of music. It is also the range of amplitudes and audio device can reproduce. Dynamic range is the Headroom plus the Signal To Noise Ratio ranges added together. It can be calculated by taking the difference between the ceiling and Noise Floor of an audio device. In modern recording, this range is often limited through Audio Compression , which allows for louder volume, but can make the recording sound less exciting or live. Photographer s use ''dynamic range'' as a Synonym for the ''luminosity range'' of a scene being photographed; the ''light sensitivity range'' of photographic film, paper and digital camera sensors; the ''opacity range'' of developed film images; the ''reflectance range'' of images on photographic papers. It can be controlled through the use of a Graduated ND Filter . High Dynamic Range Imaging is an emerging field in computer graphics which seeks to represent light levels (either measured or synthesised) as an open-ended range of absolute values, rather than as a simple ratio of 'full' brightness. This allows more accurate and realistic renderings, as well as post-processing effects such as Bloom . Standard Operating Level:A specified reference level. In recording applications, standard operating level is defined as O VU = + 4 dBm. |
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