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serena dsouza


Last seen: 3 years ago |  Active since 2017

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can anyone help me to get output of this for loop in matrix like if number of samples are 5 then filtered signal x should be first sample in first column,second sample in second and likewise. it is getting overwrite output for filtered signal x.
for k = 1:length(AudioFile) filename = AudioFile(k).name; [y,fs] = audioread(filename); y = medfilt1(y(k,:),3); ...

3 years ago | 0 answers | 0

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Question


i want to use classification learner application from mathwork for my classification task.For the data i am having the array of size of 14956*37. It has 37 features.but i don't understand how to select responses and predictors in it.can anyone help?
Healthy_physionet_LDTP_hist_FeatSelect=Healthy_physionet_LDTP_hist(:,I); Unhealthy_physionet_LDTP_hist_FeatSelect=Unhealthy_phy...

4 years ago | 0 answers | 0

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Answered
How to resolve the "Index exceeds matrix dimensions" error ?
Hi, I am getting same error in this following loop but on selected samples , even though they are of same length, Only Some of t...

4 years ago | 0

Answered
How to save a figure through each run of a for loop?
Hi, I am having same type of code but i want to save figures from two for loop.how can I do this.I have tried by following comma...

4 years ago | 1

Question


i have created samples of audio signal and want to generate separate spectrogram of each sample which should be automatically save to a folder . how can I do it?
nfft = 1024; hop = 256; [y,fs] = audioread('signal.wav'); [s,f,t,p] = spectrogram(y,hanning(nfft),nfft-hop,nfft,fs);

4 years ago | 0 answers | 0

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I am using matlab trial online R2019b.but while running below code it showing error file specified is not found in matlab path.but my code and wav file exist in same folder. How can i solve it. Please help
(s, fs) =audioread('a001.wav')

5 years ago | 1 answer | 0

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Question


I want to plot spectogram for my audio signal. What steps i have to follow for that.
(s, fs) =audioread('a01.wav')

5 years ago | 1 answer | 0

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Question


I want to find no. Of samples in particular window size. So that i can decide my nfft size.. How i can do that with matlab
W_size=10; Ovlap=50;

6 years ago | 1 answer | 0

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Question


How to read excel file in matlab. my excel file contains alphanumerical data in 1 column and numerical data in other, i am trying to read complete file, but in result ,i am getting only numerical data.please help
aa=xlsread('G:\test.xlsx');

6 years ago | 1 answer | 0

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how to install jacket toolbox or GpuMat toolbox. can u please tell me Is knowlwdge of CUDA require to use these toolboxes.thank you
Please give me installation link.

6 years ago | 1 answer | 0

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Question


can you help me to vectorize this for loop
final_y = gpuArray(fft_frame.*y2.*y3.*y4); final_y(1,:) = []; % eliminating first energy r...

7 years ago | 0 answers | 0

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Question


how to vectorize this for loop
[mrows,ncols] = size(spec); if (mrows==1) mrows=ncols; ncols=1; spec = spec(:); end % ---- edit out ...

7 years ago | 0 answers | 0

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how to vectorize .
for i=1:no_frame temp = downsample(fft_frame(:,i),2); % Down sampling by 2 y2(:,i) = [temp; zero...

7 years ago | 1 answer | 0

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Question


How to vectorize this for loop
for i = 1:no_frame frame(:,i) = y(start:stop).*wind_sam; start = start+h_size; stop = start+w_s...

7 years ago | 3 answers | 0

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Question


can u please help me to write next code for tonic extraction by highest peak method.
%% Pitch detection by AUTOCORREALATION maxlag = fs/50; r = xcorr(w, maxlag, 'coeff'); d=(-maxlag:maxlag)/fs; subplot(...

7 years ago | 0 answers | 0

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Question


i have written code for pitch detection by harmonic product spectrum ,is this correct and if not can u please correct it.thanks in advance.
[s,fs]=audioread('sample.wav') fdatool l=length(s); t=(0:1:l-1)/fs; %% Framing f_d=0.1; f_s=floor(l*f_d); %%frame ...

7 years ago | 0 answers | 0

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Question


how to vectorize this for loop
tic; [s,fs]=audioread('sample.wav'); fdatool l=length(s); figure('name','speechsignal'); subplot(3,3,1); plot (s); ti...

7 years ago | 1 answer | 0

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Question


how to vectorize these for loop?
clc; clear all; close all; tic; [s,fs]=audioread('sample.wav') fdatool l=length(s); figure('name','spee...

7 years ago | 1 answer | 0

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