A "'Dolby noise-reduction system "', or "'Dolby NR "', is one of a series of Dolby HX, all the Dolby variants work by companding, or " comp " ressing the dynamic range of the sound during recording and ex " panding " it during playback.
32.
It featured their patented " audio reference companding ", a level-dependent companding protocol that does not compand low-level audio where the wireless artifacts would be more audible . " Audio reference companding " was said to help a wireless system sound more like a wired microphone due to clearer sound, a lower noise floor, and greater dynamic range.
33.
It featured their patented " audio reference companding ", a level-dependent companding protocol that does not compand low-level audio where the wireless artifacts would be more audible . " Audio reference companding " was said to help a wireless system sound more like a wired microphone due to clearer sound, a lower noise floor, and greater dynamic range.
34.
It featured their patented " audio reference companding ", a level-dependent companding protocol that does not compand low-level audio where the wireless artifacts would be more audible . " Audio reference companding " was said to help a wireless system sound more like a wired microphone due to clearer sound, a lower noise floor, and greater dynamic range.
35.
A potential disadvantage of AGC is that when recording something like music with quiet and loud passages such as classical music, the AGC will tend to make the quiet passages louder and the loud passages quieter, compressing the dynamic range; the result can be a reduced musical quality if the signal is not re-expanded when playing, as in a companding system.
36.
For the CED VideoDisc, since stereo was not added to the format until its second year on the market, RCA made CX a mandatory part of CED's stereo system-a disc could not be released in stereo without CX encoding-and the companding specifications were unchanged from those of the LP system due to the CED system's much higher noise levels than the LaserDisc format.
37.
CX decoders made for LP's could not be used with LD's because the CX companding specifications for LaserDisc were changed, from 20 dB of noise reduction to 14 dB, along with moving the'threshold'where compression / expansion changes from 2 : 1 to 1 : 1 from-40 dB to-28 dB-other minor changes to the decoding time constants were made as well.
38.
Without affecting the definition of the " PAL-I " system, the UK also used a digital stereo companding system on analogue terrestrial television called NICAM . Standing for Near Instantaneous Companded Audio Multiplex and used for digital stereo TV broadcasts to the public, it used the NICAM digital audio system used since the early 1970s for transmitting the audio carrier signal of a broadcast between two or more regional broadcasters and sometimes to the transmitters, where it was converted back to an analogue FM audio carrier 6 MHz above the video carrier signal.
