(Xojo Plugin) 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 Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

Dim http As New Chilkat.Http
Dim success As Boolean

http.Login = "apikey"
http.Password = "my_apikey"
http.BasicAuth = True

// 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)
Dim myBaseUrl As String
myBaseUrl = "https://api.us-south.text-to-speech.watson.cloud.ibm.com/instances/31941e96-7b89-4d56-8993-9cd8f18ec2d8"

Dim sbUrl As New Chilkat.StringBuilder
success = sbUrl.Append(myBaseUrl)
success = sbUrl.Append("/v1/synthesize?voice=en-US_AllisonV3Voice")

http.Accept = "audio/wav"

Dim json As New Chilkat.JsonObject
success = json.UpdateString("text","When life gives you lemons, order the lobster tail.")

Dim resp As Chilkat.HttpResponse
resp = http.PostJson3(sbUrl.GetAsString(),"application/json",json)
If (http.LastMethodSuccess = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim respStatusCode As Int32
respStatusCode = resp.StatusCode
System.DebugLog("response status code = " + Str(respStatusCode))

If (respStatusCode = 200) Then
    success = resp.SaveBodyBinary("qa_output/lobster.wav")
    System.DebugLog("Success!")
Else
    System.DebugLog(resp.BodyStr)
End If