Redcare works below the voice frequency spectrum on a phone line and therefore does not interfere with phonecalls or ADSL ( which uses frequencies above the voice spectrum ).
12.
In effect, one pair of copper wires from Townsville to Thursday Island was to carry 3 facilities : normal voice frequency telephone, upgraded telegraph carrier, and a telephone carrier.
13.
:: And menopause causes a lowering in the voice frequency due to changing hormone levels ( a higher testosterone to estrogen ratio, which also can cause facial hair ).
14.
Diphase modulation combined with signal conditioning that eliminates the dc component of the signal, enhances timing recovery, and facilitates transmission over voice frequency ( VF ) circuits or coaxial cables.
15.
For this reason, modern hybrids use digital signal processing to implement an adaptive least mean squares filter that automatically detects the line's impedance across the voice frequency range and adjusts to it.
16.
"I can occasionally talk to people in person one on one if their voice frequency happens to fit the range that I can still hear, but I cannot hear radio, " he said.
17.
15 November : Radioteletype and voice frequency circuit opened between Sydney and Honolulu as part of preparations for a communications system being developed for NASA's Project Mercury ( America's first manned orbital flight ).
18.
The speech processing strategy coded the second formant as place of stimulation along the cochlear array, the amplitude of the second formant as current level, and the voicing frequency as pulse rate across the formant channels.
19.
As the signals are audible tones in the voice frequency range, they can be transmitted through electrical repeaters and amplifiers, and over radio and microwave links, thus eliminating the need for intermediate operators on long-distance circuits.
20.
I can occasionally talk to people in person one-on-one if their voice frequency happens to fit the range that I can still hear, but I cannot hear radio; I cannot hear television; I cannot hear music.
