jonathangarzon1's articles:

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matrix operation #7 3 28 (2/8/2010 12:38:03 PM) comp.soft-sys.matlab Hello all, I need some help in a matrix operation. I have a big matrix with a large number of zero rows, and other rows with some numbers. For example an [180 200], when the first 100 rows are zeros, after 5 r... John

zero crossing rate - help.. 0 39 (1/27/2010 6:45:09 AM) comp.soft-sys.matlab Hi all, I program a code to a zero crossing rate , but I don't know why I recieve a wrong result - to the voiced part I recieve high results and to the unvoiced part small result. Here is my code: %First of ... John

signals w/ different sampling frequency 2 29 (8/2/2009 10:27:04 AM) comp.soft-sys.matlab Hi all, I need to add two differents voice signal. The problem that the sampling frequency are different for each of them - one has a very small Fs and the other has the frequency sampling twice bigger. Now, w... John

amplitude change 5 28 (7/23/2009 6:41:01 AM) comp.soft-sys.matlab Hi all, Maybe someone can help. I have a signal (voice record) and I want to change the amplitude of the signal untill some limit. For example - the amplitude of the entire signal need to be at value 4, so I n... John

Add noise to signal 6 24 (7/13/2009 9:17:19 AM) comp.soft-sys.matlab Hi all, I want to add a noise to a voice signal. There's some way to add the noise with respective to each amplitude? Or adding noise proportionally to the amplitude at each time (second). As i know, at norm... Jonathan

Voice Encryption 0 35 (6/30/2009 10:50:02 AM) comp.soft-sys.matlab Hi all, I'm doing a project of voice encryption. The project consist: 1. Encrypt some voice record (rec1) as noise. 2. After encrypt, I need to combine the "noise" with another voice record (rec2), such that ... Jonathan

Wavelet Color Conversion #2 0 32 (12/31/2007 5:55:09 PM) comp.soft-sys.matlab Hi, I want to do an image compression. I use the function: [xcCOIF,cxc,lxc,perf0,perfl2 = wdencmp ('gbl',c,s,'coif1',level,thr,'h',1); and after: image(xcCOIF); to show... Jonathan

Wavelet Color Conversion 1 25 (12/31/2007 5:54:53 PM) comp.soft-sys.matlab Hi, I want to do an image compression. I use the function: [xcCOIF,cxc,lxc,perf0,perfl2 = wdencmp ('gbl',c,s,'coif1',level,thr,'h',1); and after: image(xcCOIF); to show... Jonathan