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I am currently doing a project capturing audio stream from microphone.
The stream I captured was full of background noise. I am wondering if there is library provided for removing the noise.
If not, what kinds of algorithm I should look for?
I haven't found a good library for audio noise reduction. However SoX is a really good open source command line sound processing utility. Check out their documentation page, specifically noiseprof and noisered.
What I would suggest doing to integrate it into your application, is to take the SoX executable and make it an embedded resource in your application. Then whenever you need to perform noise reduction, extract the resource to a temporary directory and call Process.Start() in order to execute SoX.
Hope this helps!
It depends a bit on what kind of noise you have. Some noise can be removed by simple frequency filtering, in which case what you need is an equalizer. Found one for you here
Commercial libraries also exist, here's one called Audiolab
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Where would I start if I want to create my own text editor on the UWP platform?
The TextBox and RichEditBox have many limitations that hinder my requirements for a text control, and so I would like to create my own. I know it will be a long tedious process, but I don't mind putting in the work. I just don't even know what APIs to begin with. Thanks.
I would suggest that you start by looking at source code that others have written. You can download the following projects from GitHub:
10Develops/textie
ph1ll/UwpEdit
jan-patrick/ScriptText
UWP-Open-Source-Community/Atom
springcomp/TextPad
karan-randhawa/Notepad-Sharp
ph1ll/UwpEdit
Besides reading the code and running in the Debugger, I would also suggest looking at the Commit history for these apps on GitHub, to see what problems the developers struggled with.
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I am looking for some sort of API similar to Photoshop functionality, I need to create an image using layers/masks/filters programmatically.
An example: I know how to make a nice button in Photoshop, there is a sequence of simple actions. What I want is to automate this process and generate an image of the button on the fly with a few input parameters.
I think I am not the first one who came up with such idea, there must be some library out there that does this thing. Unfortunately I cannot find anything.
Thanks!
You failed to mention if the library needs to be free/open source or if commercial libraries are acceptable but one of the best out there is GdPicture.NET. I doubt you'll find anything free that is remotely comprehensive but a good free one is Filters library (LGPL).
i don't think there is an API like this
but there is free open source software which is Paint.net
get it here
http://www.getpaint.net/download.html
see source code here
http://www.afterdawn.com/software/source_codes/paint.net.cfm
hope it helped
GDI+ in .NET?
Although I haven't used them you could take a look at:
Emgu CV: http://www.emgu.com/wiki/index.php/Emgu_CV
or OpenCvSharp : http://code.google.com/p/opencvsharp/
ImageMagic have layers support http://www.imagemagick.org/Usage/layers/ and there is Net wrapper
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I want to visualize components and connections of a HVAC system with .NET/C#.
The diagrams will just include a few different components and their connections.
They do not have to comply to any formal standard and should look alike the diagrams attached. In addition the user should be able to select a single component/connection (so that I can display additional data).
Which free drawing/charting library would you use and why?
Thanks for your time.
Julian,
Please check out GraphSharp: http://graphsharp.codeplex.com/Release/ProjectReleases.aspx
Small/open source C# library on Git renders to HTML5 (You can modify to render to for example WPF or Winform as well)
https://gridwizard.wordpress.com/2015/03/25/simple-c-library-to-render-graph-to-flowchart
I would try to host VS studio designer in application , how you can host workflow designer for instance. Read about VS extensibilities
It doesn't get more free than System.Drawing...
Seriously, given your requirements I'm not sure you need a framework or library. The most complex part of the system you describe is drawing the lines between components. If that doesn't have to get fancy (automatic layout, detecting where the lines overlay other lines/boxes) then you can probably roll the whole thing custom.
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I need to minify some C# code in a handful of Silverlight .cs and .xmal files. What are your tips for maintaining one code base and running a "tool" to generate minified code for a project?
Are there any tools (like Resharper) that will do this? If not fully, partially or assist in some way...
EDIT: I realize that there is no need for C# minification. This is an exercise that I'm doing that does not make sense on the face of it. (This is not homework.)
How about a source-code obfuscator? They generally abbreviate names, etc - and certainly remove white space.
For example, here, with demo here (although you'd probably want to disable the string encoding if possible). Note that this isn't a direct recommendation: this is just the first hit I got for C# code obfuscator.
Is that necessary? It was my understanding that the compiled .Net assembly would be sent across the wire, not the C# (or whatever language) source code.
Here are two "Lessons Learned" posts from other 10k entrants:
Thoughts on the MIX 10K challenge
MIX09 10K Smart Coding Challenge
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My application is preparing a cover-sheet for submitting documents by fax. I identify the batch by printing a Code39 on it.
The incoming faxes are received as tif files and my small c# service is polling for new faxes and calling a decoding function.
Currently I use a Win32 dll to recognize the barcode (QSbar39) and I am facing some problems with it - timeouts, hangs, errors etc. which are painful to handle.
I'd prefer the have some free .Net component or an open source class to integrate.
Whould you take a different approach? What tool do you use?
Many thanks for your answers!
BarBara is an open source barcode recognition library. It certainly isn't perfect, but I have gotten it to work (if I remember it needed some twiddling to get it to compile in VS2008) pretty well.
I've used this java libarary with good results, and have gotten it to compile in .Net with minimal effort. It's been around for a while and works pretty well. It had some minor issues with EAN codes, but that has probably been resolved now.
http://barbecue.sourceforge.net/
I'm not sure there is anything available free or open source, but VintaSoftBarcode.NET Library is pretty cheap and did the job for me on a recent project.