Nycholas Maia
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Accept 20 answers given by other contributors
Awarded to Nycholas Maia on 17 Jun 2019
Feeds
Question
C++ .MAT file format
I have a C++ application that generates a lot of numerical matrices and vectors using C++ numerical libraries as Eigen and Blaze...
5 years ago | 0 answers | 0
0
answersQuestion
PARFOR: Broadcast variable
Hi, I'm starting to use "parfor" in my MATLAB scripts. In this simple example, for each iteration, I get a 2D 'sub_matrix' from...
5 years ago | 2 answers | 0
2
answersQuestion
HDF5 transpose data?
I have a HDF5 file called "output.h5" and it have a dataset called "density" which is a matrix with 21 rows and 2 cols. I read ...
5 years ago | 0 answers | 0
0
answersQuestion
Write class methods outside the class file
I have a very large MATLAB class with a lot of methods and I would like to organize them to facilitate the source code maintenan...
5 years ago | 1 answer | 1
1
answerQuestion
Student License: Two Periods
Today, I have a MATLAB student license installed... Now, I would like to NOT renew this license this year because my PhD projec...
5 years ago | 1 answer | 0
1
answerQuestion
FFT and IFFT: Random Phases
I imported a single audio file to MATLAB workspace. After I apply the FFT: Y = fft(signal) How can I random change the audio ...
5 years ago | 2 answers | 0
2
answersQuestion
Large Audio Datastore: MATLAB Workspace
Hi, I have 36 large audio files encoded as Wav: 48kHz / 24 bits. Each file have approximately 3.6 hours of recording time (or 2...
5 years ago | 0 answers | 0
0
answersQuestion
GPU and CPU code: How to do?
I would like to share my MATLAB project with others that does not have any GPU card in your computers, but I want to use the GPU...
6 years ago | 2 answers | 0
2
answersQuestion
Preallocate char array: Wrong values
I would like to preallocate a char array, fill it with data and then add this array to a table column. The problem is that: eac...
6 years ago | 1 answer | 0
1
answerQuestion
Table: Overwrite column value with condition
I would like to overwrite all values of a specific column, but using a condition, like this: % Dummy array values: a = [1;2;3;...
6 years ago | 1 answer | 0
1
answerQuestion
Table: Add only selected collumns
% Set a dummy array content: name = {'Joe'; 'Elisa'; 'John'}; age = [30; 10; 25]; weigth = [100; 150; 180]; % Set 'select_...
6 years ago | 1 answer | 0
1
answerQuestion
Table: Add collumn with conditional
How to modify this function to create a better code think in how to get a dynamic output table. In this simple example below, I...
6 years ago | 0 answers | 0
0
answersQuestion
XML: Count how many <Tags>
I have a big XML file and I would like to count how many a specific tag 'X' appears in this text file. Example: In this example...
6 years ago | 1 answer | 1
1
answerQuestion
OOP: Select Data with conditional
I would like to filter a array of objects (animal class) and get a new array of objects that fits in 2 properties conditions sim...
6 years ago | 2 answers | 0
2
answersQuestion
ERROR: Wavelet + MATLAB Coder
I'm trying to convert my function called myFunc to C. The 'signal' input argument is a vector (1000, 1) that contains only uint...
6 years ago | 1 answer | 0
1
answerQuestion
FPGA: Audio DSP
I want to develop a DSP hardware that involves processing 64 channels of audio in real time. Using FPGA, my main concern is t...
6 years ago | 1 answer | 0
1
answerQuestion
GPU: Audio DSP
I want to develop a project that involves processing 64 channels of audio in *real time.* My main concern is that the total s...
6 years ago | 1 answer | 0
1
answerQuestion
VST Audio Plugin: Communication
Hi, Let's say that I created a VST audio plugin using MATLAB called "myVST.vst" Then I open my DAW (Reaper/Apple Logic X)...
6 years ago | 1 answer | 0
1
answerQuestion
Listen for Changes to Property Values
I would like to update the RMS object property always when the signal object property has change: classdef track < handle ...
6 years ago | 4 answers | 0
4
answersQuestion
MATLAB Coder: Toolbox Function
I'm developing my own Toolbox called 'Mix Toolbox'. My folders struct is: +mix/amp2dbfs.m function [dbfs] = amp2dbf...
7 years ago | 1 answer | 0
1
answerQuestion
Power Spectrum of Colored Noises
Hi, I would like to know how to "normalize" the power spectrum of FFT so that the length of the colored noise doesn't affect the...
7 years ago | 1 answer | 0
1
answerQuestion
Sum Object Properties: Signal
I create my object using this class: classdef myClass properties signal = [1 1 2 2 3 3]; end ...
7 years ago | 1 answer | 0
1
answerQuestion
Preallocate object array problem: Toolbox Path
I would like to preallocate a array of 'track' object. The problem is that: The 'track class' is *inside my toolbox called 'm...
7 years ago | 1 answer | 0
1
answerColored Noise: Set Duration
I was wrong. The 'SamplesPerFrame' parameter is the length of the signal. Sorry...
7 years ago | 0
| accepted
Question
Real time octave analysis: one third octave band
Hi, I'm trying to use a library called: *Real time octave analysis.* *Link:* <https://www.mathworks.com/matlabcentral/file...
7 years ago | 1 answer | 0
1
answerQuestion
Colored Noise: Set Duration
I would like to generate pink/white/blue/purple noise and set the duration of this signal. I'm using this code: signal = d...
7 years ago | 1 answer | 0
1
answerQuestion
FVTool: filter array as parameter
I would like to pass a filter vector as a parameter to FVTool to automate different plots of my MATLAB script. Example: I hav...
7 years ago | 1 answer | 0
1
answerQuestion
Spectrum Analyser: One-third octave bands
Hi, I need to customise the Spectrum Analyser X axis ticks and labels to new values that correspond to the One-third octave f...
7 years ago | 1 answer | 0
1
answerQuestion
How to visualize the GUI of VST Plugin?
I'm loading a VST3 64 bits called (VOXENGO SPAN) into MATLAB following the example: *MATLAB Example:* https://www.mathworks....
7 years ago | 1 answer | 0
1
answerQuestion
Generate C/C ++ source code with maximum optimization
Considering that my MATLAB (.m) file already has support for: # Multiple Jobs # GPU Processing # Multiple processors / core...
7 years ago | 1 answer | 0
1
answer
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