Unrecognized function or variable 'helperExtractAuditoryFeatures'

Question

Divya Singh 2020-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/551023-unrecognized-function-or-variable-helperextractauditoryfeatures

回答： Brian Hemmat 2020-6-22

I am trying to run this code - Speech Command Recognition using Deep learning - https://in.mathworks.com/help/deeplearning/ug/deep-learning-speech-recognition.html

but this error is coming - Unrecognized function or variable 'helperExtractAuditoryFeatures'

can someone please helpout. i would be really grateful. thanks.

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Answer 1

Brian Hemmat 2020-6-22

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Hi Divya,

Please click the "open this example" button on the top right corner of the example. The "helperExtractAuditoryFeatures" function is a local function to the example. When you click the "open this example" button, the example is opened in a temporary directory and all necessary helper files are placed on path.

Thanks,

Brian

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Answer 2

KALYAN ACHARJYA 2020-6-19

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I sense two possible reasons:

Deep learning toolbox in not installed. (Type "ver" in the command window, it shows all installed toolboxes)
You are using earlier version of MATLAB (prior 2017a)

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Divya Singh 2020-6-19

nope. I have 2019a and have deep learning toolbox installed. is "helperExtractAuditoryFeatures" a built in function?

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Answer 3

Aayush Shah 2020-6-19

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Hi Divya,

My understanding of your question is that you are getting an error “Unrecognized function or variable” while using the helperExtractAuditoryFeatures function of the deep learning library. There are multiple reasons for getting this error and they’re mentioned in the following post:

https://in.mathworks.com/help/matlab/matlab_prog/calling-functions.html

Each type of reason is well explained in the above link and your issue will be resolved with the information present there.