void ChangeVoice(TextToSpeechVoice voice)
{
// Change voice?
if (voice != TextToSpeechVoice.Default)
{
// Get name
var voiceName = Enum.GetName(typeof(TextToSpeechVoice), voice);
// See if it's never been found or is changing
if ((voiceInfo == null) || (!voiceInfo.DisplayName.Contains(voiceName)))
{
// Search for voice info
voiceInfo = SpeechSynthesizer.AllVoices.Where(v => v.DisplayName.Contains(voiceName)).FirstOrDefault();
// If found, select
if (voiceInfo != null)
{
synthesizer.Voice = voiceInfo;
}
else
{
Debug.LogErrorFormat("TTS voice {0} could not be found.", voiceName);
}
}
}
}
/// <summary>
/// Executes a function that generates a speech stream and then converts and plays it in Unity.
/// </summary>
/// <param name="text">
/// A raw text version of what's being spoken for use in debug messages when speech isn't supported.
/// </param>
/// <param name="speakFunc">
/// The actual function that will be executed to generate speech.
/// </param>
void PlaySpeech(
string text,
TextToSpeechVoice voice,
Func <string, IAsyncOperation <SpeechSynthesisStream> > speakFunc)
{
// Make sure there's something to speak
if (speakFunc == null)
{
throw new ArgumentNullException(nameof(speakFunc));
}
if (synthesizer != null)
{
base.AddWorkItem(
new SpeechEntry()
{
Text = text,
Voice = voice,
SpeechGenerator = speakFunc
}
);
}
else
{
Debug.LogErrorFormat("Speech not initialized. \"{0}\"", text);
}
}
private void SpeekText(TextToSpeechVoice voice, string text)
{
TextToSpeech.Voice = voice;
TextToSpeech.StartSpeaking(text);
}
public Task SayText(string text, TextToSpeechVoice voice, SpeechRate rate, SpeechVolume volume)
{
PromptStyle style = new PromptStyle();
switch (rate)
{
case SpeechRate.ExtraFast: style.Rate = PromptRate.ExtraFast; break;
case SpeechRate.Fast: style.Rate = PromptRate.Fast; break;
case SpeechRate.Medium: style.Rate = PromptRate.Medium; break;
case SpeechRate.Slow: style.Rate = PromptRate.Slow; break;
case SpeechRate.ExtraSlow: style.Rate = PromptRate.ExtraSlow; break;
}
switch (volume)
{
case SpeechVolume.Default: style.Volume = PromptVolume.Default; break;
case SpeechVolume.ExtraLoud: style.Volume = PromptVolume.ExtraLoud; break;
case SpeechVolume.Loud: style.Volume = PromptVolume.Loud; break;
case SpeechVolume.Medium: style.Volume = PromptVolume.Medium; break;
case SpeechVolume.Soft: style.Volume = PromptVolume.Soft; break;
case SpeechVolume.ExtraSoft: style.Volume = PromptVolume.ExtraSoft; break;
}
PromptBuilder prompt = new PromptBuilder();
prompt.StartStyle(style);
prompt.AppendText(text);
prompt.EndStyle();
Task.Run(async() =>
{
try
{
using (SpeechSynthesizer synthesizer = new SpeechSynthesizer())
{
if (voice == null)
{
voice = this.GetInstalledVoices().FirstOrDefault();
}
if (voice != null)
{
synthesizer.SelectVoice(voice.Name);
}
Prompt promptAsync = synthesizer.SpeakAsync(prompt);
while (!promptAsync.IsCompleted)
{
await Task.Delay(1000);
}
}
}
catch (Exception ex) { Logger.Log(ex); }
});
return(Task.FromResult(0));
}
