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The addition of dbx Type-II noise reduction and its attendant increase in useful dynamic range created a high-fidelity sound from a conventional optical print. MCA called this re-engineering of the system "Sensurround Mod-II" and the market name of the system was changed from just "Sensurround" to the "Sensurround Special Effects System".
Highway noise is today less affected by motor type, since the effects in higher speed are aerodynamic and tire noise related. Other contributions to the reduction of noise at the source are: improved tire tread designs for trucks in the 1970s, better shielding of diesel stacks in the 1980s, and local vehicle regulation of unmuffled vehicles. [13]
A guitar speaker isolation cabinet is a sound-proof enclosure that surrounds the speaker and sound-capturing microphone and prevents sound leakage into the outside environment, enabling the guitar amplifier to be turned up without excessive listening volume.
Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.
Synthesized RF generator: Part 3. How to complete, calibrate and use the Programma-2. Gary McClellan: 52/11: November 1981 Hi-fi decoder for discs: CBS's new noise-reduction system for phonograph records. Build yours today and take advantage of the new, noiseless CX-encoded discs. Joel Cohen: 52/12: December 1981 4 simple toys
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