Brian Hemmat

Last seen: 14 days ago

MathWorks

38 total contributions since 2018

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Answered
How can I detect audio device changes?
Hi Mattias, Starting in R2020b, you can use audiodevreset to refresh the list of audio devices MATLAB can interact with: https...

29 days ago | 0

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Answered
Separate voiced and unvoiced frame of speech signal
This example: https://www.mathworks.com/help/audio/ug/speaker-identification-using-pitch-and-mfcc.html#SpeakerIdentificationUsi...

1 month ago | 0

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Answered
Not sure if I set up this neural network correctly
Hi Saketh, I believe the example you're following is more of a 'hello-world' type example--your current code is trying to accom...

4 months ago | 0

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Adding confusion code for LSTM classification on audio files in Matlab
You can use confusionchart: https://www.mathworks.com/help/deeplearning/ref/confusionchart.html Your output from classify will ...

5 months ago | 0

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Answered
How to get magnitude values for a Parametric EQ?
Hi Nathan, The syntax of freqz that you were using in your code above expects w to be normalized fequency. I ran your code an...

8 months ago | 1

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Answered
Getting NaN and Inf values after extracting features from Audio files
The features you are extracting (basically statistics about a spectrum) are either not defined or poorly defined for an all-zero...

8 months ago | 0

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Answered
FreeverbReverberator example Plugin error
Hi Pablo, Audio plugin API requires plugins to support variable-sized input. The audioexample.FreeverbReverberator does not sup...

8 months ago | 0

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Answered
Parameter settings for gtcc feature extraction in the aFE and extract() function
The audioFeatureExtractor object does not support time-domain filtering for GTCC. I am curious, what is your use-case? Are you ...

8 months ago | 0

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Answered
MFCC into feature vector
The mfcc function returns mel frequnecy cepstral coefficients (MFCC) over time. That is, it separates the audio into short wind...

10 months ago | 0

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Answered
Why is the Reverberator output a two-column matrix.
The two columns represent the left and right channels of a stereo recording. The reverberator object is intended to mimic an aco...

10 months ago | 0

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Answered
Unrecognized function or variable 'helperExtractAuditoryFeatures'
Hi Divya, Please click the "open this example" button on the top right corner of the example. The "helperExtractAuditoryFeature...

10 months ago | 1

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HRTF plugin Filter error
Hi Pablo, The following code compiles for me (and should for you). Initialize the Numerator's with the correct size at constr...

11 months ago | 0

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Answered
Averaging Values in a Matrix with Nans
I think this is what you want to do: mean(Strain,2,'omitnan')

11 months ago | 1

Answered
I want to identify male or female voice in a speech signal
Audio Toolbox provides an example: Classify Gender Using LSTM Networks

1 year ago | 0

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Speaker recognition
Audio Toolbox provides several examples for speaker recognition (both identification and verification): Speaker Identification ...

1 year ago | 0

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Voice recogntion /Speaker identification
Audio Toolbox provides examples for speaker verification: A simple one using Gaussian mixture models and a more complicated one ...

1 year ago | 0

Answered
Speaker Recognition using MFCC and GMM
Audio Toolbox provides several examples for speaker recognition (both identification and verification): Speaker Identification ...

1 year ago | 0

Answered
C-Code Error: Pitch Method Conversion to C Won't Work
Hi David, You're specifying a couple name-value pairs that aren't actually parameters of the pitch function (NumChannels, Sampl...

1 year ago | 0

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Answered
Speech Recogntion Demo
Audio Toolbox includes examples for speech recognition using CNNs and wavelet scattering: Speech Command Recognition Using Deep...

1 year ago | 0

Answered
calculating the MFCC and BFCC for a signal
Starting from R2018a, you can use the mfcc function in Audio Toolbox to extract mel-frequency cepstral coefficients. To design ...

1 year ago | 0

Answered
Can we identify a speaker using his/her cepstral coefficients calculated from MFCC?
Audio Toolbox provides an example for this application: Speaker Identification Using Pitch and MFCC.

1 year ago | 0

Answered
How to extract features from speech signals using MFCC?
Starting from R2018a, you can use the mfcc function in Audio Toolbox to extract mel-frequency cepstral coefficients.

1 year ago | 0

Answered
Text to speech synthesis matlab code
Audio Toolbox (R2019a or later) supports calling into popular 3rd-party APIs for speech synthesis: https://www.mathworks.com/ma...

1 year ago | 0

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:...

1 year ago

Answered
how can i compare two audio files?
Euclidean distance between feature vectors is a good start for analyzing the difference between audio files. However, there are ...

1 year ago | 1

Answered
Speech recognition (Isolated words 1-9)
Spoken Digit Recognition with Wavelet Scattering and Deep Learning illustrates two diferent approaches to spoken digit recogniti...

1 year ago | 0

Answered
mfcc for wav file
When the mfcc function uses the default parameters, it outputs 13 mel-frequency cepstral coefficients, and appends the log-energ...

1 year ago | 0

Answered
how to change female voice to male voice using matlab?
If you're interested in just shifting the pitch (which will get you most of the way there in terms of perception of male vs. fem...

1 year ago | 0

Answered
Speech/Music Discrimination
As a start, take a look at the spectralCentroid function in Audio Toolbox™. This tutorial also covers some aspects of the area...

1 year ago | 0

Answered
How to stop sound function from Audio toolbox?
Calling "clear sound" will stop the playback. >> [audio,fs] = audioread('Counting-16-44p1-mono-15secs.wav'); >> sound(audio,fs...

1 year ago | 0

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