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jibrahim

MathWorks

Last seen: Today Active since 2016

MathWorks developer, Audio Toolbox

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Answered
spl_meter function output vlaue difference
Hi Hamin, splMeter contains filters that remember the previous output, i.e. it has states. You should not expect the same input...

16 días ago | 0

| accepted

Answered
How to read datastore from specified position?
Hi Neal, Here is one way to read files from a custom position: adsSub = subset(adsTest,20:40); allSignals = readall(adsSub)...

16 días ago | 0

Answered
Is there a possibility to scale the x-axis of the splMeter Window?
Hi Bjorn, I noticed that you set TimeSpanSource to true on the scope, but did not change the actual time span value. Maybe that...

alrededor de 1 mes ago | 0

Answered
Use StretchAudio in realtime
Hi youngz, I suggest you use audioTimeScaler: https://www.mathworks.com/help/audio/ref/audiotimescaler-system-object.html T...

alrededor de 2 meses ago | 0

Answered
Help trouble shooting my code that uses a voice recognition system to identify fruits in real time
Hi Elliot, That file (weightedClassificationLayer) is not on path by default. It is attached to the example. From the doc, op...

2 meses ago | 0

Answered
Finding multiple fundamental frequencies using the pitch function
Hi Heeje, You've specified WindowLength as size(1,wsize). I suspect you mean wsize. The pitch function accepts a Range proper...

2 meses ago | 1

Answered
code for triangular filter banks and MFCC
There are two functions in Audio Toolbox that you can use for this task: mfcc: Computes MFCC codefficients for you designAudit...

2 meses ago | 0

| accepted

Answered
Speech Command Recognition Code Generation on Raspberry Pi - HelperSpeechCommandRecognitionRasPi
The function is part of the example. You can access it by clicking the 'Open Live Script' button on the doc page of the example ...

3 meses ago | 0

Answered
is there any code for detect human age and gender from voice
You can take a look at this example: https://www.mathworks.com/help/audio/ug/classify-gender-using-long-short-term-memory-netwo...

3 meses ago | 0

Answered
How to make a audio compressor and audio expander?
Haider, Audio Toolbox has functionality for dynamic range compression and expansion. I recommend you use it in your GUI. https...

3 meses ago | 0

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...

4 meses ago | 0

| accepted

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: ...

5 meses ago | 0

| accepted

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...

5 meses ago | 0

| accepted

Answered
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...

5 meses 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...

5 meses 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...

6 meses 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...

7 meses 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...

7 meses ago | 0

| accepted

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 ...

7 meses ago | 1

| accepted

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...

7 meses 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 = ...

7 meses ago | 0

| accepted

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...

7 meses ago | 0

| accepted

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 ...

8 meses ago | 1

| accepted

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 ...

8 meses ago | 1

| accepted

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

8 meses ago | 0

| accepted

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...

8 meses 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...

8 meses ago | 0

Answered
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...

8 meses ago | 1

| accepted

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...

9 meses 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...

9 meses ago | 1

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