/// <summary>
/// The main conversion API. Calling this function sends an audio file to AT&T service for translation to text.
/// </summary>
/// <param name="attachment">Audio filename as it is stored on disk.</param>
/// <param name="speechContext">Speech content.</param>
/// <returns>Instance of <see cref="SpeechResponse"/> with sent speech response information.</returns>
/// <exception cref="System.ArgumentNullException">Throws an exception when attachment is null.</exception>
public async Task <SpeechResponse> SpeechToText(StorageFile attachment, XSpeechContext speechContext = XSpeechContext.Generic)
{
Argument.ExpectNotNull(() => attachment);
byte[] audioFileBytes = await BinaryFileUtils.ReadAllBytes(attachment);
var restEndPoint = new Uri(Settings.EndPoint, SendRelativeUrl);
var content = new ByteArrayContent(audioFileBytes);
string contentType = ContentTypeMapping.MapContentTypeFromExtension(attachment.FileType);
content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
content.Headers.Add("X-SpeechContext", Enum.GetName(typeof(XSpeechContext), speechContext));
string strResponse = await SendContentRequest(HttpMethod.Post, restEndPoint.ToString(), content);
return(SpeechResponse.Parse(strResponse));
}
/// <summary>
/// Method that calls SpeechToText method of RequestFactory to transcribe to text
/// </summary>
/// <param name="FileName">Wave file to transcribe</param>
private ATT_MSSDK.Speechv3.SpeechResponse SpeechToTextService(String FileName, String SpeechContext, String AudioContentType)
{
ATT_MSSDK.Speechv3.SpeechResponse response = null;
try
{
if (string.IsNullOrEmpty(FileName))
{
Debug.Log("No sound file specified");
return(null);
}
XSpeechContext speechContext = XSpeechContext.Generic;
string contentLanguage = string.Empty;
string xArgData = "ClientApp=SpeechApp";
switch (SpeechContext)
{
case "Generic": speechContext = XSpeechContext.Generic; contentLanguage = "en-US"; break;
case "BusinessSearch": speechContext = XSpeechContext.BusinessSearch; break;
case "TV": speechContext = XSpeechContext.TV; xArgData = "Search=True,Lineup=91983"; break;
case "Gaming": speechContext = XSpeechContext.Gaming; break;
case "SocialMedia": speechContext = XSpeechContext.SocialMedia; xArgData = "ClientApp=SpeechApps"; break;
case "WebSearch": speechContext = XSpeechContext.WebSearch; break;
case "SMS": speechContext = XSpeechContext.SMS; break;
case "VoiceMail": speechContext = XSpeechContext.VoiceMail; break;
case "QuestionAndAnswer": speechContext = XSpeechContext.QuestionAndAnswer; break;
}
string subContext = string.Empty;
response = this.requestFactory.SpeechToText(FileName, speechContext, xArgData, contentLanguage, subContext, AudioContentType);
if (null != response)
{
return(response);
}
}
catch (InvalidScopeException invalidscope)
{
Debug.Log(invalidscope.Message);
}
catch (ArgumentException argex)
{
Debug.Log(argex.Message);
}
catch (InvalidResponseException ie)
{
Debug.Log(ie.Body);
}
catch (Exception ex)
{
Debug.Log(ex.Message);
}
finally
{
Debug.Log("SpeechToTextService completed.");
}
return(response);
}
/// <summary>
/// Method that calls SpeechToText method of RequestFactory when user clicked on submit button
/// </summary>
/// <param name="sender">sender that invoked this event</param>
/// <param name="e">eventargs of the button</param>
protected void SpeechToTextButton_Click(object sender, EventArgs e)
{
try
{
resultsPanel.Visible = false;
this.Initialize();
if (string.IsNullOrEmpty(fileUpload1.FileName))
{
if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["DefaultFile"]))
{
this.fileToConvert = Request.MapPath(ConfigurationManager.AppSettings["DefaultFile"]);
}
else
{
this.DrawPanelForFailure(statusPanel, "No file selected, and default file is not defined in web.config");
return;
}
}
else
{
string fileName = fileUpload1.FileName;
if (fileName.CompareTo("default.wav") == 0)
{
fileName = "1" + fileUpload1.FileName;
}
fileUpload1.PostedFile.SaveAs(Request.MapPath("") + "/" + fileName);
this.fileToConvert = Request.MapPath("").ToString() + "/" + fileName;
this.deleteFile = true;
}
XSpeechContext speechContext = XSpeechContext.Generic;
string contentLanguage = string.Empty;
this.xArgData = this.commonXArg;
switch (ddlSpeechContext.SelectedValue)
{
case "Generic": speechContext = XSpeechContext.Generic; contentLanguage = ddlContentLang.SelectedValue; break;
case "BusinessSearch": speechContext = XSpeechContext.BusinessSearch; break;
case "TV": speechContext = XSpeechContext.TV; this.xArgData = this.xArgTVContext; break;
case "Gaming": speechContext = XSpeechContext.Gaming; break;
case "SocialMedia": speechContext = XSpeechContext.SocialMedia; this.xArgData = this.xArgSocialMediaContext; break;
case "WebSearch": speechContext = XSpeechContext.WebSearch; break;
case "SMS": speechContext = XSpeechContext.SMS; break;
case "VoiceMail": speechContext = XSpeechContext.VoiceMail; break;
case "QuestionAndAnswer": speechContext = XSpeechContext.QuestionAndAnswer; break;
}
string subContext = txtSubContext.Text;
if (subContext.ToLower().Contains("example"))
{
subContext = string.Empty;
}
SpeechResponse response = this.requestFactory.SpeechToText(fileToConvert, speechContext, this.xArgData, contentLanguage, subContext, ddlAudioContentType.SelectedValue);
if (null != response)
{
resultsPanel.Visible = true;
this.DrawPanelForSuccess(statusPanel, "Response Parameters listed below");
this.DisplayResult(response);
}
}
catch (InvalidScopeException invalidscope)
{
this.DrawPanelForFailure(statusPanel, invalidscope.Message);
}
catch (ArgumentException argex)
{
this.DrawPanelForFailure(statusPanel, argex.Message);
}
catch (InvalidResponseException ie)
{
this.DrawPanelForFailure(statusPanel, ie.Body);
}
catch (Exception ex)
{
this.DrawPanelForFailure(statusPanel, ex.Message);
}
finally
{
if ((this.deleteFile == true) && (File.Exists(this.fileToConvert)))
{
File.Delete(this.fileToConvert);
this.deleteFile = false;
}
}
}
