Answered
Cannot find files or folders matching: 'C:\Users\Computer Complex\AppData\Local\Temp\free-spoken-digit-dataset-master\recordings'.
This dataset does not ship with the product. The introduction/description of this example should have the info on where to downl...

2 years ago | 0

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Answered
How to record audio for infinite time?
Hi Harsha, You can record for as long as you want with audioDeviceReader: deviceReader = audioDeviceReader; while 1 % for ex...

2 years ago | 0

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I want to stop my simulink code after 10 seconds of running
This should work: sim(modelname, 15)

2 years ago | 0

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why does the wave player Block in Simulink do this when i loop a sound and how can i fix it?
Hi ALCA, the From Multimedia File block has a 'Samples per audio channel' parameter. This determines the size of the frame. If...

2 years ago | 0

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Answered
record and analyse real-time audio
Hi Oskar, When working with real-time audio, you should consider audioDeviceWriter, audioDeviceReader and audioPlayerRecorder. ...

2 years ago | 0

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Answered
Expected audioIn to be one of these types: single, double Instead its type was cell.
Hi FOG, In this call to extract,trainAudio is a cell array: featuresTrain = extract(aFE,trainAudio); extract does not support...

2 years ago | 0

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How to use getaudiodata() in Simulink?
Hi Ahmet, To interact with a microphone device in Simulink, use the Audio Device Reader block: https://www.mathworks.com/help/...

2 years ago | 0

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Pre-trained network on the raspberry pi
Hi Joenam, This example might be helpful to you: Speech Command Recognition Code Generation on Raspberry Pi

3 years ago | 0

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Labeling raw audio dataset
Hi Abdelhakim, Signal Labeler is the APP to use to label your audio data: https://www.mathworks.com/help/signal/ug/using-sig...

3 years ago | 0

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Answered
Rewind - Fast Forward Button (Audio Player)
Hi Nikos, dsp.AudioFileReader has a ReadRange property that controls the range of samples you want to read. Here is an idea: ...

3 years ago | 0

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What is the default normalization in plot of stft function in Short-time Fourier transform
Hi Muhammad, I beleive the plot you get with STFT uses log, so 20*log10(abs(S)+eps) is plotted.

3 years ago | 1

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Answered
Saving images quickly for huge datasets
Hi Joenam, A couple of things I noticed in your code: 1) You rely on melSpectrogram to generate a plot for you, which is fin...

3 years ago | 1

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Trying to convert whole folder into spectrograms
Hi Justine, consider using an audioDatastore to do this. then you don't have to write the for loop. for example: % This audioDa...

3 years ago | 0

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Answered
VGGishPreprocess not accepting input
Hi Joshua, First, sorry we had a local funtion name with the same name as a function we ship. We are fixing this. The functi...

3 years ago | 1

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Answered
Need help with Volume Slider GUI
Hi Nikos, Consider using audioDeviceWriter to play the audio, and dsp.AudioFileReader to read from the audio file. You do not...

3 years ago | 0

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Answered
Speech To Text SAPI Offine mode
Hi Nikos, You can try out wav2vec 2.0. You can find a MATLAB implementation here: https://github.com/matlab-deep-learning/wav2...

3 years ago | 1

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Answered
Audio Files in a Triggered Subsystem?
Hi Benjamin, You can't use this audio block in a triggered subsystem. You can try an enabled subsystem though. Both From Multim...

3 years ago | 0

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Howto explore large collection of audio files with custom parameters display beside time and frequency domain graphs ?
Hi Robert, audioDatastore will help you manage a large number files. The signal analyzer app will help you visualize files, a...

3 years ago | 0

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Recorded Audio is Shorter than Expected
Hi Xiwen, I suspect the scope is taking a long time to set up the first time you call it. Consider adding this code outside...

3 years ago | 0

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Answered
How to extract VGGish features from audio files shorter than 1s?
Hi Robert-Valentin, The VGGIsh network accepts auditory spectrograms that correspond to roughly one second of audio, so you do ...

3 years ago | 1

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How can I change the database and pretrained generator ?
Hi Aseel, The example starts off by showcasing the pretrained network. The network was trained to produce drum-like sounds. If ...

3 years ago | 0

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For a network with 1 inputs and 1 output, the datastore read function must return a cell array with 2 columns, but it returns an cell array with 1 columns.
Hi Gudimalla, The training process typically expects a pair from the datastore: For classification problems, it expects a mel s...

3 years ago | 1

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Answered
what should be the constraint on window length in function melspectrogram?
Hi Krishna, This looks fine. Make sure that your input x is a column vector, not a row vector. The function treats each column ...

3 years ago | 0

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Answered
Need continuous sound played from buffer A then B. I fill B while A is playing, then visa versa.
Hi David, For real-time sound applications, you should use audioDeviceWriter: https://www.mathworks.com/help/audio/ref/audiode...

3 years ago | 0

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Answered
"audioread" multiple audio files in a folder
For future reference, I recommend you use audioDatastore: https://www.mathworks.com/help/audio/ref/audiodatastore.html You won...

3 years ago | 0

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Get sample rate in a Matlab function block in Simulink
Hi Glenn, I've accomplished this in the past using a probe block: https://www.mathworks.com/help/simulink/slref/probe.html Th...

3 years ago | 0

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Is there a function or a way to write/read bit by bit to/from a buffer in MATLAB?
Hi An, Maybe dsp.AsyncBuffer works for you? b = dsp.AsyncBuffer; write(b,1); % write the number 1 to the buffer write(b,2);...

3 years ago | 0

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Answered
Iterate speech frames through all the audio file in the folder
Hi Camille, The function mfcc breaks the signal into frames for you, so you do not need to perform the frame processing yoursel...

3 years ago | 0

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Answered
how to separate an audio file based on different speakers
Hi Andrei, Speaker diarization is one way to address it. Check out this example: https://www.mathworks.com/help/audio/ug/spe...

3 years ago | 0

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How do I connect my ASIO sound card to Matlab??
Hi Wilmer, You should be able to use the ASIO sound card with the objects in Audio toolbox: audioDeviceWriter, audioDeviceRead...

3 years ago | 0