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Ibrahim A


Last seen: mer än ett år ago |  Active since 2019

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Question


What "Window" value or size mean when using the audioFeatureExtractor function
When I am trying to use the audioFeatureExtractor function to extract features from an audion. I need to define the property "Wi...

ungefär 2 år ago | 1 answer | 0

1

answer

Solved


Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

mer än 3 år ago

Solved


Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

mer än 3 år ago

Solved


Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

mer än 3 år ago

Solved


Find MPG of Lightest Cars
The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

mer än 3 år ago

Solved


Find the Best Hotels
Given three input variables: * |hotels| - a list of hotel names * |ratings| - their ratings in a city * |cutoff| - the rat...

mer än 3 år ago

Solved


Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

mer än 3 år ago

Solved


Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

mer än 3 år ago

Solved


Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

mer än 3 år ago

Solved


Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

mer än 3 år ago

Solved


Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

mer än 3 år ago

Solved


Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

mer än 3 år ago

Solved


Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

mer än 3 år ago

Answered
Image resizing using augmentedImageDatastore
Hi Rd, I had same problem and fixed by splitting the data before I do the augmentedImageDatastore then have two augmentedImageD...

ungefär 4 år ago | 1

| accepted

Question


Size of Mini-Batch in deep learning
Hi, I am trying to train some deep learning models and trying to set up good value for the Mini-Batch. As you may know, the val...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Getting NaN and Inf values after extracting features from Audio files
Hello, I am trying to extract audio features from audio files that range from 1 - 30 seconds. When I extract the features using...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Classifying environmental sounds using AlexNet
I am trying to extract Spectrograms and MFCC from audio files then calssify them using AlexNet or GooglNet. Any tips ?

mer än 4 år ago | 1 answer | 0

1

answer

Answered
How do I know what is the probability that this file belong to this class .wav
Yessss.. I figured it out :) prob = predict(net,extract(aFE,wNoiseTest)');

nästan 5 år ago | 0

| accepted

Question


How do I know what is the probability that this file belong to this class .wav
On the TransferLearningUsingGoogLeNetExample for images, the code was able to predict the class of the image with probability % ...

nästan 5 år ago | 1 answer | 0

1

answer

Answered
Extracting features from a .wav file using MFCC?
This should walk you through all the steps on how to extract MFCC. https://www.mathworks.com/help/audio/ref/mfcc.html

ungefär 5 år ago | 0

Question


How to extract specific MFCC from .wav files?
When I use the "audioFeatureExtractor" to extract MFCC, since there are 13 MFCC features, I am not sure how to use the setExtrac...

ungefär 5 år ago | 1 answer | 0

1

answer

Question


Issue loading audio files from "fileDatastore" to a matrix
I have used fileDatastore to link my 3K audio files from three different floders, then I tried to input their values into three ...

ungefär 5 år ago | 2 answers | 0

2

answers