Definitions for roll-off
roll-off

WikipediaRate this definition:0.0 / 0 votes

1. Roll-off

   Roll-off is the steepness of a transmission function with frequency, particularly in electrical network analysis, and most especially in connection with filter circuits in the transition between a passband and a stopband. It is most typically applied to the insertion loss of the network, but can, in principle, be applied to any relevant function of frequency, and any technology, not just electronics. It is usual to measure roll-off as a function of logarithmic frequency, consequently, the units of roll-off are either decibels per decade (dB/decade), where a decade is a 10-times increase in frequency, or decibels per octave (dB/8ve), where an octave is 2-times increase in frequency. The concept of roll-off stems from the fact that in many networks roll-off tends towards a constant gradient at frequencies well away from the cut-off point of the frequency curve. Roll-off enables the cut-off performance of such a filter network to be reduced to a single number. Note that roll-off can occur with decreasing frequency as well as increasing frequency, depending on the bandform of the filter being considered: for instance a low-pass filter will roll-off with increasing frequency, but a high-pass filter or the lower stopband of a band-pass filter will roll-off with decreasing frequency. For brevity, this article describes only low-pass filters. This is to be taken in the spirit of prototype filters; the same principles may be applied to high-pass filters by interchanging phrases such as "above cut-off frequency" and "below cut-off frequency".

How to pronounce roll-off?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say roll-off in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of roll-off in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of roll-off in Pythagorean Numerology is: 3

Examples of roll-off in a Sentence

1. Frank Fiorina:

   I'm an Italian boy from Pittsburgh - so I don't need to quite explain what I'd really like to do. But it just infuriates me. Carly can let it roll off her back.

2. Mitch McConnell:

   Trump had every reason to let McConnell’s words roll off his back. But the president could not help firing back.

3. Jim Colucci:

   Bea was offended, when the writers called Rose [Betty White] dumb or Blanche [Rue McClanahan] a slut or Sophia [Estelle Getty] old, it could roll off those women’s backs because they were not like their characters.

4. Officer Wordie Johnson:

   We used to watch the new cars roll off the line here.

5. Mike Lorusso:

   The spring redetermination season wasn't that traumatic, but the next redetermination in the fall is expected to be more severe and more problematic, hedges are beginning to roll off, prices have not recovered and there is a more widely accepted realization that prices will remain lower over a longer period.

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Roll-Off