Deep Learning Speech Recognition Example, Problem with designAuditoryFilterBank

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I am trying to run the Deep Learning Speech Recognition Example (see link: and I am having a proble with designAuditoryFilterBank. The error that I am getting is: "Undefined function or variable 'designAuditoryFilterBank'."
I check to see if I have Audio toolbox installed and I do....

Accepted Answer

Steven Lord
Steven Lord on 20 Oct 2019
If you look at the end of the documentation page for the designAuditoryFilterBank function it says that this function was introduced in release R2019b. I suspect you're using an older release.
The online documentation is for the current release (right now that is release R2019b) so if you're using an older release you might want to check when the function you're trying to use was introduced, or check the documentation included as part of your local installation.
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Katarina Vuckovic
Katarina Vuckovic on 20 Oct 2019
Edited: Katarina Vuckovic on 20 Oct 2019
Thanks, I am using 2019a. Is there an alternative that I can use in 2019a version? I would hate to reinstall everything.

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More Answers (1)

jibrahim on 23 Oct 2019
Hi Katarina,
Here is the R2019a version of the example:
If you have R2019a, you should have access to the source code. That version of the demo uses the function melSpectrogram to generate the auditory spectrograms.


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