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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I had some trouble finding the document I needed.It would be nice if it gave me a history of forms pulled up so I don't have to pull up the same ones.
Thanks
2015-02-06
I've been looking for an easy way to fill out these forms other then using a typwriter. The only issue was I couldn't find this years forms very easy. I had to contact customer support. ???
2020-01-23
Efficiency
When you have no device to print out and thrn scan..you can use this software.
It is very good software since you can edit signs and print document without having device to print out.
I do not have any leat because it is good at all since it has excelent advantages to me.no disadvantage at all.
2020-02-23
This is a lifesaver
This program has made such a difference. We use it to edit our PDF documents online all the time. Great!
The learning curve was steep but we are now over it and everything is working fine. Just remember to save your docs frequently.
2018-10-06
Ease of use was great and intuitive
Ease of use was great and intuitive. Documents went from PDF into a word document really nicely. The only issue with changing PDF into Word docs is the font comes out a bit weird and can't seem to be corrected.
2023-04-11
great product
We use this on an annual basis to prepare our tax docs for our Church employees. Great service and they are always willing to help even when its a user error. thank you
2021-02-27
FINALLY!
ITS EXACTLY WHAT I NEEED TO GET MY BUSINESS UP AND RUNNING AGAIN AFTER BEING CLOSED DOWN. NEEDED PAPERWORK FOR LOANS AND NEEDED TO ADJUST NUBERS FOR 2019/2020. AN ABOLUTE NECESSITY FOR POST COVID FINANCES.
2021-02-09
i love the customer experience
i love the customer experience, pretty fast respond, and helpful. I would like to give you 5 stars just because how fast your cs!
2020-09-04
So far this program is a game changer. I wish it was cheaper (a discount for teachers on a year subscription would be wonderful!!) but I like what I am seeing so far;)
2020-08-23
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Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
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How do I increase my FFT resolution?
The most intuitive way to increase the frequency resolution of an FFT is to increase the size while keeping the sampling frequency constant. Doing this will increase the number of frequency bins that are created, decreasing the frequency difference between each.
What is FFT resolution?
The frequency resolution of FFT (or DFT) is equal to the inverse of continuous sampling time (s) : Freq. Res = 1/T. If you are sampling data for 1 second, the resolution is 1Hz. If you are sampling for 10 seconds, the resolution is 0.1Hz. TRE frequency resolution is independent of the sampling frequency.
What is frequency resolution of FFT?
The frequency resolution is the difference in frequency between each bin, and thus sets a limit on how precise the results can be. The frequency resolution is equal to the sampling frequency divided by FFT size. For example, an FFT of size 256 of a signal sampled at 8000Hz will have a frequency resolution of 31.25Hz.
What is the FFT size?
The FFT size defines the number of bins used for dividing the window into equal strips, or bins. Hence, a bin is a spectrum sample, and defines the frequency resolution of the window.
What is meant by FFT?
A fast Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IDF). Fourier's analysis converts a signal from its original domain (often time or space) to a representation in the frequency domain and vice versa.
How is FFT size calculated?
The frequency resolution of each spectral line is equal to the Sampling Rate divided by the FFT size. For instance, if the FFT size is 1024 and the Sampling Rate is 8192, the resolution of each spectral line will be: 8192 / 1024 = 8 Hz. Larger FFT sizes provide higher spectral resolution but take longer to compute.
How can spectral resolution be improved?
The way to increase your SOFT's spectral resolution is to increase the duration of time that the transform covers, as you noted. If you truly need to be able to resolve frequencies that precisely (within a few Hz of one another), then you need to observe them for a long enough period of time to discern them.
Why is spectral resolution important?
Thus, we would require a sensor with higher spectral resolution. Spectral resolution describes the ability of a sensor to define fine wavelength intervals. Their very high spectral resolution facilitates fine discrimination between different targets based on their spectral response in each of the narrow bands.
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