partial void HelloPress(NSObject sender)
{
labelInfo.StringValue = "Hello world!";
NSSpeechSynthesizer synth = new NSSpeechSynthesizer();
synth.StartSpeakingString("Hello world!");
}
/// <summary>
/// Speak back text
/// </summary>
/// <param name="text">Text to speak</param>
/// <param name="crossLocale">Locale of voice</param>
/// <param name="pitch">Pitch of voice</param>
/// <param name="speakRate">Speak Rate of voice (All) (0.0 - 2.0f)</param>
/// <param name="volume">Volume of voice (0.0-1.0)</param>
/// <param name="cancelToken">Canelation token to stop speak</param>
/// <exception cref="ArgumentNullException">Thrown if text is null</exception>
/// <exception cref="ArgumentException">Thrown if text length is greater than maximum allowed</exception>
public async Task Speak(string text, CrossLocale?crossLocale = null, float?pitch = null, float?speakRate = null, float?volume = null, CancellationToken cancelToken = default(CancellationToken))
{
if (text == null)
{
throw new ArgumentNullException(nameof(text), "Text can not be null");
}
var tcs = new TaskCompletionSource <object>();
var handler = new EventHandler((sender, args) => tcs.TrySetResult(null));
try
{
await semaphore.WaitAsync(cancelToken);
void OnCancel()
{
speechSynthesizer.StopSpeaking();
tcs.TrySetCanceled();
}
using (cancelToken.Register(OnCancel))
{
if (volume.HasValue)
{
speechSynthesizer.Volume = NormalizeVolume(volume);
}
if (speakRate.HasValue)
{
speechSynthesizer.Rate = speakRate.Value;
}
if (crossLocale.HasValue)
{
speechSynthesizer.Voice = crossLocale.Value.Language;
}
sdelegate.FinishedSpeaking += handler;
speechSynthesizer.StartSpeakingString(text);
await tcs.Task;
}
}
finally
{
sdelegate.FinishedSpeaking -= handler;
if (semaphore.CurrentCount == 0)
{
semaphore.Release();
}
}
}
partial void btnSpeakHandler(Foundation.NSObject sender)
{
string value = textField.StringValue;
// Is the string 0 length?
if (value.Length == 0)
{
return;
}
mSpeechSynth.StartSpeakingString(value);
btnStop.Enabled = true;
btnSpeak.Enabled = false;
voicesTableView.Enabled = false;
textField.Enabled = false;
}
/// <summary>
/// Speak back text
/// </summary>
/// <param name="text">Text to speak</param>
/// <param name="crossLocale">Locale of voice</param>
/// <param name="pitch">Pitch of voice</param>
/// <param name="speakRate">Speak Rate of voice (All) (0.0 - 2.0f)</param>
/// <param name="volume">Volume of voice (iOS/WP) (0.0-1.0)</param>
/// <param name="cancelToken">Canelation token to stop speak</param>
/// <exception cref="ArgumentNullException">Thrown if text is null</exception>
/// <exception cref="ArgumentException">Thrown if text length is greater than maximum allowed</exception>
public async Task Speak(string text, CrossLocale?crossLocale, float?pitch, float?speakRate, float?volume, CancellationToken?cancelToken)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text), "Text can not be null");
}
var tcs = new TaskCompletionSource <object>();
var handler = new EventHandler((sender, args) => tcs.TrySetResult(null));
try
{
var ct = cancelToken ?? CancellationToken.None;
await semaphore.WaitAsync(ct);
using (ct.Register(() =>
{
speechSynthesizer.StopSpeaking();
tcs.TrySetCanceled();
}))
{
speechSynthesizer.Volume = NormalizeVolume(volume);
if (speakRate != null)
{
speechSynthesizer.Rate = speakRate.Value;
}
if (crossLocale != null)
{
speechSynthesizer.Voice = crossLocale.Value.Language;
}
sdelegate.FinishedSpeaking += handler;
speechSynthesizer.StartSpeakingString(text);
await tcs.Task;
}
}
finally
{
semaphore.Release();
sdelegate.FinishedSpeaking -= handler;
}
}
public static void StartSpeaking(string text, SystemVoice voice)
{
speech.Voice = voice.Identifier;
speech.StartSpeakingString(text);
}
