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Helper Feature Vector2 Sequence

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Moomal Tariq
Moomal Tariq 2019-11-10
评论： Floriana Vasile 2021-6-24
I am using Matlab 2019b but still using "HelperFeatureVector2Sequence" function gives error as undefined function. Why ????

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回答（3 个）

the cyclist
the cyclist 2019-11-10
Do you have the Audio Toolbox installed? If you type
ver
at the command window prompt, do you see the Audio Toolbox listed?
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the cyclist
the cyclist 2019-11-11
Copying Moomal Tariq's comment here, instead of being an "answer":
"when i type license('inuse') it just says MATLAB ...i am using trial version"
the cyclist
the cyclist 2019-11-11
That command lists all the toolboxes you are licensed to use. (That is different from just being installed.)
I suggest you go to the license center to see if you can figure it out from there, or contact support from the link on that page.

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Moomal Tariq
Moomal Tariq 2019-11-10
yes it is here Untitled.png
jibrahim
jibrahim 2019-11-11
Hi Moomal,
This function is not on path by default. I believe it is used in a featured example in Audio Toolbox. to get access to this function, browse to the doc page of the featured example, and then click the 'Open Script' button (around the top right on the doc page). That should take you to a folder that contains the code for the example (including the function you are looking for).
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jibrahim
jibrahim 2021-6-24
Brace indexing is used because features is a cell array in the example. You will have to modify the function if you are not using cells.
Floriana Vasile
Floriana Vasile 2021-6-24
I used the ''Voice Activity Detection Noise Using Deep Learning Example'', where i can find:
trainFeatureCell = helperFeatureVector2Sequence(featuresTraining',sequenceLength,sequenceOverlap);
at the beginning of the function you have:
function [sequences,sequencePerSegment] = HelperFeatureVector2Sequence(features,featureVectorsPerSequence,featureVectorOverlap)
so I'm giving to the function my featuresTraining' as the features.
The featureTraining type is double, but the script is still working, which is somenthing that I can't understand

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