(Unicode C) IBM Cloud - Text to Speech - Synthesize Audio (GET)

Synthesizes text to audio that is spoken in the specified voice.

For more information, see https://cloud.ibm.com/apidocs/text-to-speech#synthesize-audio-get

Chilkat C/C++ Library Downloads
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#include <C_CkHttpW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    BOOL success;
    const wchar_t *myBaseUrl;
    HCkStringBuilderW sbUrl;
    int numReplaced;
    const wchar_t *textToSynthesize;
    HCkBinDataW bdResponseBody;
    int respStatusCode;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http = CkHttpW_Create();

    CkHttpW_putLogin(http,L"apikey");
    CkHttpW_putPassword(http,L"my_apikey");
    CkHttpW_putBasicAuth(http,TRUE);

    // Use your base URL shown in the credentials web page (below your apikey)
    myBaseUrl = L"https://api.us-south.text-to-speech.watson.cloud.ibm.com/instances/31941e96-7b89-4d56-8993-9cd8f18ec2d8";

    sbUrl = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbUrl,myBaseUrl);
    CkStringBuilderW_Append(sbUrl,L"/v1/synthesize?accept=ACCEPT_TYPE&voice=CHOSEN_VOICE&text=TEXT_TO_SYNTHESIZE");

    // Choose "audio/wav" for the output file type.
    numReplaced = CkStringBuilderW_Replace(sbUrl,L"ACCEPT_TYPE",CkHttpW_urlEncode(http,L"audio/wav"));
    // See the choices for voices at https://cloud.ibm.com/apidocs/text-to-speech#synthesize-audio-get
    numReplaced = CkStringBuilderW_Replace(sbUrl,L"CHOSEN_VOICE",L"en-US_MichaelVoice");
    textToSynthesize = L"When life gives you lemons, order the lobster tail.";
    numReplaced = CkStringBuilderW_Replace(sbUrl,L"TEXT_TO_SYNTHESIZE",CkHttpW_urlEncode(http,textToSynthesize));

    // Send the GET to synthesize the voice.
    // The response file will be contained in bdResponseBody
    bdResponseBody = CkBinDataW_Create();
    success = CkHttpW_QuickGetBd(http,CkStringBuilderW_getAsString(sbUrl),bdResponseBody);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkStringBuilderW_Dispose(sbUrl);
        CkBinDataW_Dispose(bdResponseBody);
        return;
    }

    respStatusCode = CkHttpW_getLastStatus(http);
    wprintf(L"response status code = %d\n",respStatusCode);

    if (respStatusCode == 200) {
        success = CkBinDataW_WriteFile(bdResponseBody,L"qa_output/lobster.wav");
        wprintf(L"Success!\n");
    }
    else {
        wprintf(L"%s\n",CkBinDataW_getString(bdResponseBody,L"utf-8"));
    }



    CkHttpW_Dispose(http);
    CkStringBuilderW_Dispose(sbUrl);
    CkBinDataW_Dispose(bdResponseBody);

    }