(Lianja) 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 Lianja Extension Download Chilkat Lianja Extension

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

loHttp = createobject("CkHttp")

loHttp.Login = "apikey"
loHttp.Password = "my_apikey"
loHttp.BasicAuth = .T.

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

loSbUrl = createobject("CkStringBuilder")
loSbUrl.Append(lcMyBaseUrl)
loSbUrl.Append("/v1/synthesize?voice=en-US_AllisonV3Voice")

loHttp.Accept = "audio/wav"

loJson = createobject("CkJsonObject")
loJson.UpdateString("text","When life gives you lemons, order the lobster tail.")

loResp = loHttp.PostJson3(loSbUrl.GetAsString(),"application/json",loJson)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loSbUrl
    release loJson
    return
endif

lnRespStatusCode = loResp.StatusCode
? "response status code = " + str(lnRespStatusCode)

if (lnRespStatusCode = 200) then
    llSuccess = loResp.SaveBodyBinary("qa_output/lobster.wav")
    ? "Success!"
else
    ? loResp.BodyStr
endif

release loResp


release loHttp
release loSbUrl
release loJson