|
General Asylum General audio topics that don't fit into specific categories. |
|
|
|
General Asylum General audio topics that don't fit into specific categories. |
|
In Reply to: An uniformed hypothesis posted by Bob Neill on August 7, 2006 at 06:40:53:
by high frequency noise. Digital processing generates a rich spectrum of electrical noise that extends through the radio frequency region. Some equipment leaks enough of this noise that it can be picked up by portable radios held nearby. There are several other sources of RF noise, and the noise may also interfere with the digital processing.The noise is inaudible in itself, but can create spurious tones in the audio band through intermodulation if it mixes with the audio signal at nonlinear points in the system.
These tones add treble energy and an artificial sense of punch to, for example, piano notes. At lower noise levels, it seems that there is more detail. However, close attention reveals that true detail is lost in the presence of these noise artifacts.
Careful design can reduce this problem within equipment, and attention to RF noise suppression can reduce it in an audio system. The inherent grain in the Redbook CD format is sufficiently small that very good sound can be achieved.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- An unnaturally crisp quality in digital audio may be caused - Al Sekela 19:01:14 08/08/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
