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Contribute at least one answer each month for 12 consecutive months
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Feeds
Delay line for code generation
There are multiple objects you can use to model delays: dsp.Delay: Delay input signal by fixed samples dsp.VariableIntegerDel...
13 dagen ago | 0
memory footprint of system objects
Hi Mattias, When you execute 'whos' on a system Object variable, the size you see is just the size of the variable pointing to ...
13 dagen ago | 0
| accepted
Missing IDCT in MFCC computation of "vggishPreprocess" function
Hi Roberto, If you want to extract MFCC coefficients, you should use the function mfcc. The VGGish-related functions do not ge...
16 dagen ago | 0
| accepted
How do I plot a spectrogram of a real time plugin?
audioTestBench has a spectrum analyzer which includes a spectrogram option. Launch the spectrum analyzer from audioTstBench by...
ongeveer 2 maanden ago | 0
Audio Effect Generator with Convolution using impulse response
Please see the following objects in Audio Toolbox for different audio effects: reverberator: Add reverberation to audio signal ...
2 maanden ago | 0
Multichannel signal filter with multichannel impulse response (efficiently)
Hi Michael, Staritng in R2023B, dsp.FrequencyDomainFilter now supports speciying multiple filters. you can leverage that abilit...
2 maanden ago | 0
| accepted
Working with Second Order Sections HRTF dataset for binauralization
Hi Shaunak, This is possible with Audio Toolbox, which has functionality to read and write SOFA files. Here is example code. %...
3 maanden ago | 0
crossFilt causing Matlab audio plugin pops
Hi Matthew, the main problem here is that you are recreating the corssover filter for every incoming frame of audio. Instead, y...
3 maanden ago | 0
| accepted
higher order intermodulation distortion
There are multiple features that are relvant to this: spectrum analyzer supports intermodulation distortion measurements There...
8 maanden ago | 0
How can I create a multi-channel audio plugin in Matlab?
Hi Hasan, The audio plugin interface allows you to specify the desired numbers of input and output channels. I beleive the defa...
9 maanden ago | 0
| accepted
VST audio plugin and .txt output file
It is not clear from the question if you want this writing capability to be part of the plugin, or if it is something you want t...
10 maanden ago | 0
dsp.AllpassFilter coefficient translation
Relevant methods of dsp.allpassFilter include: freqz: Frequency response of discrete-time filter System object coeffs: Returns...
10 maanden ago | 0
How can I add a low pass filter after each delay line in my multi channel feedback delay network
Hi Muhsin, In general, in order to perform filtering and listen to the output inside your for loop, you use filter System objec...
10 maanden ago | 0
| accepted
How to store a matrix of impulse responses in a plugin? (re: Failed to compute constant value for nontunable property)
Hi Nathan, The main issue was that the code is using different filters and numerator sizes based on getSampleRate. One of the f...
10 maanden ago | 1
| accepted
How do I convert a multichannel .mat to .wav
First reshape brir to a 2-D array: brir = reshape(brir,size(brir,1),[]); audiowrite('/MATLAB Drive/angle_0.wav', brir, Fs, '...
10 maanden ago | 0
| accepted
How to calculate the sound pressure (Pa) of an audio signal ?
Here are relevant functions available with Audio Toolbox that are related to measuring loudness of an audio signal: calibrateMi...
10 maanden ago | 0
Inefficient Use of Bandpass IIR Filter Object (DSP System Toolbox)
Hi Anthony, It is expected that filtering your input sample-by-sample will be significantly slower than filtering the entire fr...
10 maanden ago | 1
| accepted
Error in a testbench generated file using validateAudioPlugin
Hi Dario, Thanks for the reproduction steps. This helps. The problem is in the method updateFilters. The method recreates the ...
11 maanden ago | 0
| accepted
How to add a plot to the UI of an audio plugin
Hi Dario, There is no existing support to embed custom pots into the UI of a plugin. However, there is some functionality that ...
ongeveer een jaar ago | 0
| accepted
Error with validateAudioPlugin : "Size mismatch (size [1 x 13] ~= size [1 x 28])"
I have seen such errors when a variable-size string is involved. I am attaching a modified version where I use enums instead o...
ongeveer een jaar ago | 0
| accepted
Is it possible to send MIDI from Matlab to a DAW?
You can work with MIDI using functions in Audio Toolbox. Here is the relevant documentation: https://www.mathworks.com/help/aud...
ongeveer een jaar ago | 0
How to get the coefficient of the 'crossoverFilter' system object?
https://www.mathworks.com/matlabcentral/answers/824345-extracting-the-individual-filters-in-a-crossover-filter
meer dan een jaar ago | 1
| accepted
Audio VST Plugin UI Control Updates
Hi David, This is indeed a limitation of authoring audio plugins in MATLAB: A parameter's value may not be modified by setting ...
meer dan een jaar ago | 1
| accepted
VST creation: Index in position 1 is invalid
I assume you get an error when you attempt to generate an audio plugin. I can reproduce your error if I validate the audio plu...
meer dan een jaar ago | 0
speech2text for Italian language
Hi Ricardo, The wav2vec model in speech2text only works for English. You will have to use one of the Cloud models (Google API...
meer dan een jaar ago | 1
| accepted
Blind source separation databa
The End-to-End Deep Speech Separation example creates such a dataset from the LibriSpeech dataset.
meer dan een jaar ago | 0
| accepted
How can I implement a stable Shelving filter for short pulses?
Hi Hasan, Since you are trying to modify a short impulse response, you might want to apply the transformation in the frequency ...
meer dan een jaar ago | 0
| accepted
ValidateAudioPlugin Error "Input series must be a numeric vector" in plugin
Hi Pedro, This error is thrown from the first line of your process method. To reproduce: v = myVocoder process(plugin,randn(2...
meer dan een jaar ago | 1
Is it posible to set 2 inputs in audio plugin?
Hi David, It is possible to design plugins with more than one input. Here is a simple example: classdef myPlugin < audioPlugin...
meer dan een jaar ago | 1
| accepted
Text to speech Matlab Linux
Hi christopher, You can use the text2speech function (Audio Toolbox). You will need an internet connection, and an active s...
meer dan een jaar ago | 0
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