|
|||||||||||
NNear_Field_Sound | Negative_feedback | Negative_LCD | Neodymium_Magnet | Net_Volume | Noise | Noise | Noise | Noise_floor | Noise_gate | Noise_Reduction_(DNR,_Dolby_B,_Dolby_C,_etc.) | Noise_Reduction_(DNR,_Dolby_B,_Dolby_C,_etc.) | Nominal_Impedance | Non-Delay_Play | Nonlinearity | Non-Lossy_Compression | Normal_home_or_office_background | Normal_speaking_voice | Notch_filter | NTSC | Nyquist and #39;s_Theorem |1. Near Field Sound:-Typically, any point where the direct sound emission is measurably louder than the reflections of that sound. From a more accurate technical perspective, this is the point where the velocity of molecules emitted by the radiator is out of phase with the sound pressure wave. This is especially obvious when the listener is in close proximity to high frequency emissions. 2. Negative feedback: 3. Negative LCD 4. Neodymium Magnet-A magnet material providing 7.5 times the magnetic strength of standard magnetic materials. 5. Net Volume:-The amount of airspace that is enclosed within a speaker's enclosure. This does not include the airspace taken up by bracing, vents, or the speaker itself. 6. Noise:An unwanted electrical signal or sound. (e.g., We told Frankie to watch out for that discount amp because it had too much noise.) 7. Noise:An unwanted electrical signal or sound. (e.g., We told Frankie to watch out for that discount amp because it had too much noise.) 8. Noise:-Perceived sounds not in the original soundtrack. Such things as hiss, crackle, pops, hum, and buzz, are typical of the types of extraneous signals described as noise. Inherent noise in the electronic processing in any sytem is measured in decibels relative to the amplitude of the original signal. 9. Noise floor:-Normally the lowest threshold of useful signal level (although sometimes audible signals below the noise floor may be recovered). 10. Noise gate 11. Noise Reduction (DNR, Dolby B, Dolby C, etc.):-Various methods or schemes for reducing the level of noise on program material. Note that modern CDs don't require such processing. (e.g., Since most of the old cassettes were recorded with Dolby B noise reduction, you should look for a cassette deck that features Dolby B on playback.) 12. Noise Reduction (DNR, Dolby B, Dolby C, etc.) 13. Nominal Impedance: 14. Non-Delay Play:-A disc changer feature with significantly reduced silence between the time one disc is finished, and the next disc is loaded and cued. 15. Nonlinearity:What goes into a system comes out changed by its passage through that system-in other words, distorted. The ideal of an audio component and an audio system is to be linear, or nondistorting, with the image on one side of the mirror identical to the image on the other side. 16. Non-Lossy Compression 17. Normal home or office background:-40-60 dB 18. Normal speaking voice:65-70 dB 19. Notch filter 20. NTSC-National Television System Committee. Refers to the standards used for video broadcast and playback signal parameters in the U.S. Japan and other countries. Alternative systems used in Europe and some Asian countries are PAL and SECAM. 21. Nyquist's Theorem:-This states that a sound must be sampled at at least twice its highest analog frequency in order to extract all of the information from the bandwidth and accurately represent the original acoustic energy. In practice, sampling at slightly more than twice the frequency will make up for imprecisions in filters and other components used for the conversion. |
|
||||||||||
| Copyright © 2005-2012 All Car Stereos and Speaker sets! All rights reserved. Sunday, February 05, 2012 8:47:06 PM - 20 Users Online Home | Brands | Vehicles | Contact Us | Site Map | Links| Custom Wheels | Wheels and Rims | Centercaps | Exhaust Content Management by WebBuzz Inc |
|||||||||||