(Delphi ActiveX) OpenAI (ChatGTP) Create Transcription

See more OpenAI ChatGPT Examples

Show how to transcribe audio to text.

For more information, see https://platform.openai.com/docs/api-reference/audio/create

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
req: TChilkatHttpRequest;
resp: IChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
text: WideString;

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

http := TChilkatHttp.Create(Self);

// Implements the following CURL command:

// curl https://api.openai.com/v1/audio/transcriptions \
//   -H "Authorization: Bearer $OPENAI_API_KEY" \
//   -H "Content-Type: multipart/form-data" \
//   -F file="@/path/to/file/audio.mp3" \
//   -F model="whisper-1"

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := '/v1/audio/transcriptions';
req.ContentType := 'multipart/form-data';
success := req.AddFileForUpload2('file','qa_data/mp3/Conversation-with-39-year-old-male-Virginia_afccal000227_001_00-03-37.mp3','audio/mpeg');

req.AddParam('model','whisper-1');

req.AddHeader('Expect','100-continue');
// This is NOT a real key.  Change the "sk-vi...." to your own key.
req.AddHeader('Authorization','Bearer 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');

resp := http.SynchronousRequest('api.openai.com',443,1,req.ControlInterface);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);

jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(jResp.Emit());

respStatusCode := resp.StatusCode;
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(resp.Header);
    Memo1.Lines.Add('Failed.');

    Exit;
  end;

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "text": "Imagine the wildest idea that you've ever had, and you're curious about how it might scale to something that's a 100, a 1,000 times bigger. This is a place where you can get to do that."
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

text := jResp.StringOf('text');
end;