private void GenerateTTS(Configuration cfg)
{
this.InitDestinationDirectory(cfg);
using (var synthesizer = new SpeechSynthesizer())
{
this.InitializeSpeechSynthesizer(cfg, synthesizer);
var xmlDoc = this.LoadXmlDocument(cfg);
var rows = this.LoadRows(cfg, xmlDoc);
foreach (var row in rows)
{
string id = this.GetElementValue(cfg, row, cfg.IDElementName);
Console.WriteLine(id);
byte i = 0;
foreach (var textElementName in cfg.TextElementNames)
{
string textElement = this.GetElementValue(cfg, row, textElementName);
char postFix = (char)((byte)'A' + i);
string filename = cfg.Mp3FilePrefix + id + postFix + ".mp3";
string fullFilename = Path.Combine(cfg.DestinationDirectory, filename);
this.SpeakToMp3(cfg, synthesizer, fullFilename, textElement);
i++;
}
}
}
}
public static void ConvertWavStreamToMp3File(Configuration cfg, ref MemoryStream ms, string savetofilename)
{
//rewind to beginning of stream
ms.Seek(0, SeekOrigin.Begin);
using (var retMs = new MemoryStream())
{
using (var rdr = new WaveFileReader(ms))
{
using (var wtr = new LameMP3FileWriter(savetofilename, rdr.WaveFormat, cfg.MP3BitRate))
{
rdr.CopyTo(wtr);
wtr.Close();
}
rdr.Close();
Console.WriteLine(savetofilename + " ok.");
}
}
}
private string GetElementValue(Configuration cfg, XElement row, string elementName)
{
var element = row.Element(elementName);
if (element == null)
{
throw new ApplicationException(
string.Format(
"Can't find '{0}' node in the loaded XML file '{1}'.",
elementName,
cfg.SourceXmlFileName));
}
return element.Value;
}
private void SpeakToMp3(Configuration cfg, SpeechSynthesizer reader, string fileName, string speakText)
{
//save to memory stream
MemoryStream ms = new MemoryStream();
reader.SetOutputToWaveStream(ms);
//do speaking
reader.Speak(speakText);
//now convert to mp3 using LameEncoder or shell out to audiograbber
ConvertWavStreamToMp3File(cfg, ref ms, fileName);
}
private XElement LoadXmlDocument(Configuration cfg)
{
XElement xmlDoc;
try
{
xmlDoc = XElement.Load(cfg.SourceXmlFileName);
}
catch (Exception ex)
{
throw new ApplicationException(string.Format("Couldn't load the XML file '{0}'.", cfg.SourceXmlFileName), ex);
}
return xmlDoc;
}
private IEnumerable<XElement> LoadRows(Configuration cfg, XElement xmlDoc)
{
var rows = xmlDoc.Descendants(cfg.RowElementName);
if (rows == null)
{
throw new ApplicationException(
string.Format(
"Can't find '{0}' nodes in the loaded XML file '{1}'.",
cfg.RowElementName,
cfg.SourceXmlFileName));
}
return rows;
}
private void InitializeSpeechSynthesizer(Configuration cfg, SpeechSynthesizer synthesizer)
{
synthesizer.SelectVoice(cfg.SelectedVoice);
//set some settings
synthesizer.Volume = 100;
synthesizer.Rate = 0; //medium
}
private void InitDestinationDirectory(Configuration cfg)
{
if (string.IsNullOrEmpty(cfg.DestinationDirectory))
{
cfg.DestinationDirectory = ".";
}
try
{
cfg.DestinationDirectory = Path.GetFullPath(cfg.DestinationDirectory);
}
catch (Exception ex)
{
throw new ApplicationException(
string.Format("Invalid DestinationDirectory! '{0}'", cfg.DestinationDirectory),
ex);
}
if (!Directory.Exists(cfg.DestinationDirectory))
{
Directory.CreateDirectory(cfg.DestinationDirectory);
}
}
