(SQL Server) IBM Cloud - Text to Speech - Synthesize Audio (POST)

Synthesizes text to audio that is spoken in the specified voice. Uses a POST which allows for more text to be synthesized.

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

// Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
//
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    EXEC sp_OASetProperty @http, 'Login', 'apikey'
    EXEC sp_OASetProperty @http, 'Password', 'my_apikey'
    EXEC sp_OASetProperty @http, 'BasicAuth', 1

    -- Send the following request:

    -- curl -X POST -u "apikey:{apikey}" 
    --    --header "Content-Type: application/json" 
    --    --header "Accept: audio/wav" 
    --    --data "{\"text\":\"When life gives you lemons, order the lobster tail.\"}" 
    --    --output lobster.wav "{url}/v1/synthesize?voice=en-US_AllisonV3Voice"

    -- Use your base URL shown in the credentials web page (below your apikey)
    DECLARE @myBaseUrl nvarchar(4000)
    SELECT @myBaseUrl = 'https://api.us-south.text-to-speech.watson.cloud.ibm.com/instances/31941e96-7b89-4d56-8993-9cd8f18ec2d8'

    DECLARE @sbUrl int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sbUrl OUT

    EXEC sp_OAMethod @sbUrl, 'Append', @success OUT, @myBaseUrl
    EXEC sp_OAMethod @sbUrl, 'Append', @success OUT, '/v1/synthesize?voice=en-US_AllisonV3Voice'

    EXEC sp_OASetProperty @http, 'Accept', 'audio/wav'

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'text', 'When life gives you lemons, order the lobster tail.'

    DECLARE @resp int
    EXEC sp_OAMethod @sbUrl, 'GetAsString', @sTmp0 OUT
    EXEC sp_OAMethod @http, 'PostJson3', @resp OUT, @sTmp0, 'application/json', @json
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @sbUrl
        EXEC @hr = sp_OADestroy @json
        RETURN
      END
    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @resp, 'StatusCode', @respStatusCode OUT

    PRINT 'response status code = ' + @respStatusCode

    IF @respStatusCode = 200
      BEGIN
        EXEC sp_OAMethod @resp, 'SaveBodyBinary', @success OUT, 'qa_output/lobster.wav'

        PRINT 'Success!'
      END
    ELSE
      BEGIN
        EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
        PRINT @sTmp0
      END

    EXEC @hr = sp_OADestroy @resp


    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @sbUrl
    EXEC @hr = sp_OADestroy @json


END
GO