Due to the discontinuity in the waveform low pass filtering is needed to filter all harmonics.
2.
The connection between spatial and angular bandwidth in the far field is essential in understanding the low pass filtering property of thin lenses.
3.
By low pass filtering the lowest octave and half-wave rectifying a waveform is created with a fundamental half of the original frequency.
4.
An integrator will have a low pass filtering effect but when given an offset it will accumulate a value building it until it reaches a limit of the system or overflows.
5.
A digital filter will introduce noise to a signal during analog low pass filtering, analog to digital conversion, digital to analog conversion and may introduce digital noise due to quantization.
6.
The gain of a good quality full-range audio amplifier will be essentially flat between 20 Hz to about 20 kHz ( the range of normal human low pass filtering at the output to get rid of high frequency switching noise and harmonics.
7.
If an object plane transparency is imagined as a summation over small sources ( as in the Whittaker Shannon interpolation formula, Scott [ 1990 ] ), each of which has its spectrum truncated in this fashion, then every point of the entire object plane transparency suffers the same effects of this low pass filtering.
8.
What noise reduction technique are they likely to have used ? ( BTW is not low pass filtering as the upper frequencies are OK ) Oh yeah, and why would they keep the very low amplitude and refrain from eqing the tracks back to something acceptable ?-- 88.110.232.152 13 : 53, 27 August 2007 ( UTC)
मोबाइल