uses mmSystem;
{....}

procedure TForm1.Button1Click(Sender: TObject);     // Record
begin
  mciSendString('OPEN NEW TYPE WAVEAUDIO ALIAS mysound', nil, 0, Handle);
  mciSendString('SET mysound TIME FORMAT MS ' +     // set time
    'BITSPERSAMPLE 8 ' +                // 8 Bit
    'CHANNELS 1 ' +                     // MONO
    'SAMPLESPERSEC 8000 ' +             // 8 KHz
    'BYTESPERSEC 8000',                // 8000 Bytes/s
    nil, 0, Handle);
  mciSendString('RECORD mysound', nil, 0, Handle)
end;

procedure TForm1.Button2Click(Sender: TObject);     // Stop
begin
  mciSendString('STOP mysound', nil, 0, Handle)
end;

procedure TForm1.Button3Click(Sender: TObject);      // Save
var 
  verz: String;
begin
  GetDir(0, verz);
  mciSendString(PChar('SAVE mysound ' + verz + '/test.wav'), nil, 0, Handle);
  mciSendString('CLOSE mysound', nil, 0, Handle)
end;