input text using app designer

2021 3 24
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更新时间：2021 3 30
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Im trying to create a simple app that allows the users input what they want to say and upon the press of a button the device speaks for them, using app designer i am struggling with getting input in with the right method to the speech synthesizer

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Kojiro Saito
Kojiro Saito 2021-3-26
编辑：Kojiro Saito 2021-3-30

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UPDATED ANSWER
I've reproduced this issue when userPrompt has two strings, e.g.) text area contains line breaks.
You might add join command to combine multiple lines into one string array.
userPrompt = app.whatdoyouwanttosayTextArea.Value;
userPrompt = string(userPrompt);
userPrompt = join(userPrompt); % combine multiple lines in to one string array
NET.addAssembly('System.Speech');
speak = System.Speech.Synthesis.SpeechSynthesizer;
speak.Volume = 100;
Speak(speak, userPrompt);
ORIGINAL ANSWER
Are you using another .NET or Java library which also uses Speak function?
How about the following?
speak.Speak(userPrompt);

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michael olagunju
michael olagunju 2021-3-29
thank you for your answer
i am still getting the same error
it seems whatdoyouwanttosaytextarea.value can not be converted to a string to match the signature, what do you think
Kojiro Saito
Kojiro Saito 2021-3-30
I understood. Could you tell us your MATLAB version? I've tested your code in R2020b and R2021a but works without an error.
Kojiro Saito
Kojiro Saito 2021-3-30
All right. Could you place a breakpoint on line NET.addAssembly('System.Speech'); and check the userPrompt variable is exactly a string type?
michael olagunju
michael olagunju 2021-3-30
not sure i am doing this right
Kojiro Saito
Kojiro Saito 2021-3-30
Looks good to me. Could you mousehover the userPrompt in line 17 and confirm the data type?
For example,
michael olagunju
michael olagunju 2021-3-30
okay i right clicked on it and set the condition userPrompt == string
and it stops on the line when i click continue then it gives me that same error
michael olagunju
michael olagunju 2021-3-30
actually it is a 2 by 1 string array, does it have to be 1 by 1
michael olagunju
michael olagunju 2021-3-30
it worked, yes its supposed to be a 1by 1 array
michael olagunju
michael olagunju 2021-3-30
thank you for your help, i learnt how to insert a conditional breakpoint too :)
Kojiro Saito
Kojiro Saito 2021-3-30
All right, I understand this issue occurs when the TextArea contains multiple lines. I've updated my answer.

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