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Can't solve parse error

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Alexis
Alexis on 8 Jul 2021
Commented: Alexis on 8 Jul 2021
I am learning how to use inputParser and am stuck here:
function windowedAudio = windowAudio(audioIn,Fs,varargin)
defaultWin = 4;
defaultThresh = 0.1;
defaultRamp = 30;
defaultLong = 500;
defaultShort = 100;
p = inputParser;
addRequired(p,'audioIn',@isnumeric);
addRequired(p,'Fs',@isnumeric);
addParameter(p,'WindowLength',defaultWin,@checkWinLen);
addParameter(p,'SilenceThreshold',defaultThresh,@checkThresh);
addParameter(p,'RampLength',defaultRamp,@checkRamp);
addParameter(p,'LongSilence',defaultLong,@checkLong);
addParameter(p,'ShortSilence',defaultShort,@checkShort);
parse(p,audioIn,Fs,varargin{:});
end
It seems to run beyond that final line if I call the function with only the required arguments:
windowAudio(speechWav,Fs)
But when I try using one of the optional parameters,
windowAudio(speechWav,Fs,'WindowLength',4)
Error using windowAudio (line 31)
The value of 'WindowLength' is invalid. Not enough input arguments.
I have been Googling forever and can't figure out what I have done wrong. Can anyone with fresh eyes help me here?

Accepted Answer

Alek Antic
Alek Antic on 8 Jul 2021
Hi,
I have reproduced your error and have found that your issue is most likely coming from your checkWinLen definition. It seems like it requires more than one argument, which is not allowed in a validation function, as documented here.
  1 Comment
Alexis
Alexis on 8 Jul 2021
Thanks @Alek Antic, I didn't notice that in the documentation. Cheers!

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