I want to implement speech recognition in C++ console application using sapi any help will be appreciated

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,i want to get the input for switch through voice recognition

#include <iostream>
#include <string>
using namespace std;
int main()
{
string ch;
cin>>ch;
switch(ch)
{
case "1":
{
// do something here
}
}
system("Pause");
return 0;
}

What I have tried:

#include <stdafx.h>
#include <sapi.h>

int main(int argc, char* argv[])
{
    ISpVoice * pVoice = NULL;

    if (FAILED(::CoInitialize(NULL)))
        return FALSE;

    HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice;);
    if( SUCCEEDED( hr ) )
    {
        hr = pVoice->Speak(L"Hello world", 0, NULL);
        pVoice->Release();
        pVoice = NULL;
    }

    ::CoUninitialize();
    return TRUE;
}

i have done tts by this code

Posted 21-Dec-17 2:35am

Member 13588042

Updated 21-Dec-17 3:01am

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Jochen Arndt · Answer 1 · 2017-12-21T02:46:00

The C/C++ switch statement does not work with strings. The condition must be an integral or enumeration type (see switch statement - cppreference.com[^]).

But you can use single characters:

char ch;
cin >> ch;
switch (ch)
{
case '1':
    // do something here
    break;
}

Otherwise you have to use if - else [if] blocks or a loop checking against the items of a lookup table.

Richard MacCutchan · Answer 2 · 2017-12-21T03:01:00

Solution 2

After correcting the error in your code

C++

HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice); // removed semicoln aftger pVoice

it works.

You now need to explain what more you are trying to do.

Posted 21-Dec-17 3:01am

Richard MacCutchan

Comments

Member 13588042 23-Dec-17 10:15am

actuallty the tts works perfectly fine but i want to do speech recognition using sapi

Richard MacCutchan 23-Dec-17 11:48am

Then you need to study the documentation to learn how to do it.