jibrahim

Last seen: 7 days ago

MathWorks

86 total contributions since 2016

MathWorks developer, Audio Toolbox

jibrahim's Badges

Answered
How to import an audio file to simulink from app designer
Hi Roberto, Maybe this answers your scenario: In your App designer code, once the user has selected the file, you can use set...

24 days ago | 0

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Answered
Extracting the individual filters in a crossover filter
Hi Simon, There is no documented way to get the individual filters. However, there is a hidden function that should help you: ...

1 month ago | 0

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Answered
System Object Variable Size Tuneable Properties
Hi Michael, Your property u_hold is growing in size, which is problematic in simulink and in code generation in principal, whe...

1 month ago | 0

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How to change test signal in "Denoise Speech Using Deep Learning Networks"?
Hi Charlotte, You can try changing the first line of code in that section to something likeL adsTest = audioDatastore(myfolde...

2 months ago | 0

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Answered
Out of memory gather()
Hi Maxim, In many practical situations, your data might not all fit in memory. There is a modified workflow for that case. Se...

2 months ago | 0

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Answered
Matlab, Audio Toolbox, Live Audio Tuning Problem with Plugin: How do I handle more than one property?
Hi Laurids, The process function defines how the output is computed based on the input and plugin property values. Maybe I am m...

2 months ago | 0

Answered
how to calculate sound level (spL) audio file (*.wav) ?
Hi ngoc, You can use splMeter from Audio Toolbox. % EXAMPLE: Calculate sound pressure level of signal audFileName = 'FunkyD...

3 months ago | 0

Answered
ScaleValues property error in designing a filter with designParamEQ and dsp.BiquadFilter
Hi Patrick, I can't run your code because certain variables are missing (N1, GVector, in, out, etc), but in R2020a, this code s...

4 months ago | 0

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Answered
Invalid training data. Responses must be nonempty.
Hi Martin, You can't pass an audioDatastore directly to the network. Create a transform datastore that organizes the data into ...

4 months ago | 1

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Answered
Read and compare multiple audio files
% Use an audioDatastore to point to all audio files in a folder % Set IncludeSubFolders to true to read subfolders too ads = a...

4 months ago | 0

Answered
run a loop until a sound plays
% Set this to the folder containing your images imageFolder = pwd; imd = imageDatastore(pwd,'IncludeSubfolders',true); imd = ...

4 months ago | 0

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Answered
Reducing Noise and Artifacts with the Pitch Function
Hi Manash, If you want the rate of pitch estimates to be higher, you will need to increase the overlap length: p = pitch(aud,a...

4 months ago | 0

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Answered
Distortion Plugin with variable Oversampling
Hi Adrian, There are multiple issues here. First, to reproduce the error, execute this: h = PickOversampling2 h.oF = 3 ...

4 months ago | 1

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Answered
How to use Audio Plugin Example System Objects in a custom Plugin
Hi Adrian, Take a look at the plugin below and see if this answers your needs. What this plugin does is essentially internally ...

4 months ago | 1

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Answered
Testing classifying gender on LSTM
Alfi, The second section of this example (Classify Gender with a Pre-Trained Network) addresses this:

5 months ago | 0

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Answered
Recovering SampleRate from 'From Mutimedia File " Block in simulink
Hi Younes, One way to do this is with a probe block. Use a probe fo get the port sample time and dimensions. You get the samp...

5 months ago | 0

Answered
spectral centroid in matlab
Hi Abhijit, spectralCentroid uses a window internally to compute the STFT of the signal. The default window length is 30 millis...

5 months ago | 0

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reverb effect in MATLAB
Hi Adnan, You can accomplish this with the reverberator object in Audio Toolbox: https://www.mathworks.com/help/audio/ref/re...

5 months ago | 1

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Answered
how do i read multiple audio file from different files name ?
If you have access to Audio Toolbox, there is no need for much custom code to accomplish this. Just use audioDatastore. From th...

6 months ago | 1

Answered
Perfect reconstruction linear phase FIR filterbank for audio without reconstruction filterbank?
Hi Pythagorean, Audio Toolbox has a crossoverFilter that supports up to 5 bands. The summed magnitude response is flat. http...

6 months ago | 1

Answered
MFCC extraction for audio files in a folder
Hi Camille, The size of the output of mfcc, coeffs, is L-by-M for mono audio signals, where L depends on the audio input length...

6 months ago | 0

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Answered
Is there a better way to write my downsampling function?
Hi Adriana, You should be able to use one of many resampling functions in Signal Processing Toolbox: https://www.mathworks....

6 months ago | 0

Answered
Audio Plugin - cascade
Hi Nuno, I recommend you first try crossoverFilter. It implements a Linkwitz-Riley and supports up to 4 crossovers. You can c...

7 months ago | 1

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Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

7 months ago

Answered
Index exceeds the number of array elements (480)
Hi Nathanael, I took a look at the code. I saw two issues: a. There seems to be a misplaced end that was making the reset m...

7 months ago | 0

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Answered
How to fix the error: "Expected Input to be a scalar" when using LMS Update block in Simulink from Matlab Documentation Example
Hi Yurii, I suspect the issue is that the LMS Update block requires scalar inputs, and the From Multimedia block output is ...

7 months ago | 0

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Answered
How do I cascade biquad filters (dsp.BiquadFilter)?
Hi Patrick, You can use dsp.FilterCascade to cascade dsp.BiquadFilter objects

8 months ago | 0

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Answered
pCompiledNumChannels error in audio plugin generation
Hi Pablo, The corssover filter object is complaining that the number of channels is unknown. This is because the code generat...

8 months ago | 0

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Answered
Audio Synthesis by Generative Adversarial Network (GAN)
Hi Hina, Please check this exaample: Train Generative Adversarial Network (GAN) for Sound Synthesis https://www.mathworks.c...

9 months ago | 0

Answered
Randomise phase when using dsp.STFT / ISTFT real time?
Hi Angeliki, I think you need to invert the order here: [N,L] size(X); With the STFT object, the second dimension is the n...

11 months ago | 0

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