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Alexander Voznesensky


SPb GETU "LETI"

13 total contributions since 2016

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Question


Low classification accuracy CNN
Hi! My task is binary classification: 2 types of whales. 51000 images for training and 9000 images for testing, so 85%:15%. I us...

7 mesi ago | 0 answers | 0

0

answers

Question


Hydroacoustic Dataset for CNN
Hi everyone! In my research I need hydroacoustic dataset for training CNN in classification task. So, I need a lot of records (a...

7 mesi ago | 0 answers | 0

0

answers

Question


GPU for loop parallelization
Hi there! Is it possible to perform for loops (i,j) on GPU here? I know about arrayfun in MATLAB, but in this case i don't sure ...

circa un anno ago | 1 answer | 0

1

answer

Question


About decimation in DWT
Hi! I'm studying DWT by this link http://slideplayer.com/slide/4998644/. And I have 2 question (slide on 18.07): 1. We should...

circa 2 anni ago | 2 answers | 0

2

answers

Question


About using cwt function
Hi guys! I'm a little bit confused about using cwt function. I know, that some wavelets have a scaling function (phi), but some ...

circa 2 anni ago | 1 answer | 0

1

answer

Question


Plot Wavelet FFT in Hz
Hi! I'm trying to do fft of wavelet function. But I'm confused: how to define x-axis f in Hz? Here is my code: scales=1:10...

circa 2 anni ago | 2 answers | 0

2

answers

Question


fread: how to read n bytes from bin files
Hi! I have a binary file. It consists of records: 8 byte long, 4 byte float, 4 byte float, 4 byte float. I want to read the file...

circa 2 anni ago | 2 answers | 0

2

answers

Answered
generate and modulate white gaussian noise sound with matlab
Hi! You may use randn().

oltre 2 anni ago | 0

Answered
show image and its part
Hi! Use: imshow(I). h = gcf - current figure handle. So, you can set the position: set(h,'Position', [100, 100, 16, 16]). I is a...

oltre 2 anni ago | 1

Answered
what is the matlab code to remove noise from the speech signal?
Hi! As far, as i know, there is no built-in functions. But, who knows. You can use wavelet transform for denoising.

oltre 2 anni ago | 0

Question


Error message. Increase font size.
Hi! Is there any possibility to increase font size in errordlg?

oltre 2 anni ago | 1 answer | 0

1

answer

Question


FFT in dB scale
Hi everybody! I'm trying to use dB scale in FFT. I've found the example <http://www.dsplib.ru/content/winex/winex.html> I'm t...

oltre 2 anni ago | 1 answer | 0

1

answer

Answered
Band Pass Filter Design using FDA tool
Use fdatool: type fdatool in command line

oltre 3 anni ago | 0