Possible Duplicate: Good headphones for a noisy office How can I cut-out distractions? Are noise-canceling headphones suitable, and are any specific models recommended? I had a fellow programmer that used to use some headphones to help her shut out distractions and focus on her work. Lately I find that I am less able to foc...
Have done fft (see earlier posting if you are interested!) and got a result, which helps me. Would like to analyse the noisiness / spikiness of an array (actually a vb.nre collection of single). Um, how to explain ... When signal is good, fft power results is 512 data points (frequency buckets) with low values in all but maybe 2 or 3 ar...
((Answer selected - see Edit 5 below.)) I need to write a simple pink-noise generator in C#. The problem is, I've never done any audio work before, so I don't know how to interact with the sound card, etc. I do know that I want to stay away from using DirectX, mostly because I don't want to download a massive SDK just for this tiny proj...
Hi, The matlab FAQ describes a one-line method for finding the local maximas: index = find( diff( sign( diff([0; x(:); 0]) ) ) < 0 ); But I believe this only works if the data is more or less smooth. Suppose you have data that jumps up and down in small intervals but still has some approximate local maximas. How would you go about f...
I have been looking into different algorithms lately and have read quite alot about perlin noise. It seems like the only thing people use it for is to generate textures (clouds/wood grain) or to distribute trees. What else can Perlin Noise be used for? ...
Hi, I get a lot of noise during playback. The noise is not there when I play it on my mac, so it has to be an error with the AVAudioPlayer. Has anyone else experienced the same? I have had this problem for several months, but never got an answer anywhere. All replies appreciated, Hans Espen. ...
I am wondering what is the best hash function for procedural textures, especially perlin noise. I know about the PRNG posted on this page, but this claims that it is not a good PRNG Thanks ...
I'm looking for an Additive White Gaussian Noise generator for .NET. I know that somewhere there is some degree of interoperability between .NET and MATLAB, which has a AWGN generator, but I don't know if its free EDIT and I just found it. Probably other applications as GNU Octave, which have similar functionalities to MATLAB, have .NE...
Hi all, I want to drop some keywords meta tags into a page depending on the article being showed. Let's say you load the page blabla.com/article.aspx?id=2 The article which id equals 2 is titled "The Wisdom of Deliberate Mistakes in Business Management" So I would like to include the meta tags like this: <META name="keywords" content...
I would like to create a sound visualisation system using C# language and .NET Framework. This could look like in Winamp application. Maybe exist free library or some interesting articles which describe how to do it? Example: ...
I'm working on a "retro" motorbike game in flash, similar to the Road rash series on the mega drive and after having a long play with the sound sampling capabilities of flash I can't manage to find the "right" way to generate the noise. I've been trying to basically change the frequency on a sine wave in line with the revs, so as the re...
Which kind of algorithm does Neatimage use to remove noise and grain from photos? I understand that this is proprietary software, but probably someone has an idea. References to publications or to similar algorithms are welcome. ...
Hi, I'm playing multiple wav files (I tried using caf but same thing happen) with AVAudioPlayer. All the files are less than 2 sec, and 16 bit sound - file size is ~40kb. I found it makes small noise (it's hard to describe, but a small sound like 'dub') in two cases: 1) when a play is paused or stopped while playing. 2) when a play fin...
Hello. I want to estimate the noise in an image. Let's assume the model of an Image + White Noise. Now I want to estimate the Noise Variance. My method is to calculate the Local Variance (3*3 up to 21*21 Blocks) of the image and then find areas where the Local Variance is fairly constant (By calculating the Local Variance of the Local ...
I want to average some .jpg images which are corrupted by zero-mean Gaussian additive noise. After searching around, I figured out to add the image matrices and divide the sum by the number of matrices. However, the resultant image is totally black. Normally when the number of image increases then the resultant image gets better. But whe...
Possible Duplicate: How can I check out the picture quality in program using c#? Can I check whether noise is added to a photograph using c#? ...
Has anyone compiled, or know of a pre-compiled, libnoise for MacOS X 10.6? It does not compile out of the box here due to a libtool issue. libtool --mode=compile g++ -c ../src/latlon.cpp -o ../src/latlon.o libtool: unknown option character `-' in: --mode=compile ...
I recently wrote an extremely basic edge detection algorithm that works on an array of chars. The program was meant to detect the edges of blobs of a single particular value on the array and worked by simply looking left, right, up and down on the array element and checking if one of those values is not the same as the value it was curre...
my application is voice recognition. and im using Sphinx and configured it with my application and working fine. i do need to find a proper API for noise reduction so that i can avoid distrotion in the wav file. my application is implemented using by java. can someone suggest me some good api's that i can use for my application ...
Hi, giving a database table with huge data in it, what is the best practice to remove noise text such as : fghfghfghfg qsdqsdqsd rtyrtyrty that noise is stored into the "name" field. I'm working on data with Java standard structures. ...