'Get dictation grammar and set it inactive Set MyGrammar = MyRecoContext.CreateGrammar Set MyRecoContext = New SpSharedRecoContext MyGrammar.CmdSetRuleIdState 0, SGDSInactive 'C&C on MyGrammar.DictationSetState SGDSInactive 'Dictation off MyGrammar.DictationSetState SGDSActive 'Dictation on MyGrammar.CmdSetRuleIdState 0, SGDSInactive 'C&C off The Form_Unload procedure unloads the dictation grammar and deactivates the C and C grammar.ĭim MyRecoContext As SpeechLib.SpSharedRecoContextĭim MyGrammar As SpeechLib.ISpeechRecoGrammar The Command1_Click procedure toggles the recognition mode between dictation and C and C. The Form_Load procedure creates a grammar object, associates it with the system dictation lexicon and the Solitaire C and C grammar, and begins recognition in dictation mode. Paste this code into the Declarations section of the form. To run this code, create a form with the following control: It creates a grammar, configures the grammar to perform both dictation and command and control (C and C) recognition, and toggles between the two types of recognition. The following Visual Basic form code demonstrates the use of the DictationLoad, DictationSetState, and DictationUnload methods. The DictationUnload method unloads the active dictation topic from the grammar. _speakButtonCancellationTokenSource = new CancellationTokenSource() Īwait (_spokenText, _speakButtonCancellationTokenSource.Interface: ISpeechRecoGrammar DictationUnload Method _speakButtonCancellationTokenSource.Cancel() If (_speakButtonCancellationTokenSource?.IsCancellationRequested is false) _speakButtonCancellationTokenSource?.Cancel() Īsync void HandleSpeakButtonClicked(object sender, EventArgs e) Void HandleCancelButtonClicked(object sender, EventArgs e) HorizontalOptions = LayoutOptions.Center, Var speakButton = new Button ĬancelButton.Clicked += HandleCancelButtonClicked The complete sample app can be found anycodings_xamarin.forms here: anycodings_xamarin.forms using System Ĭonst string _spokenText = "Oh, supercalifragilisticexpialidocious! Even though the sound of it, Is something quite atrocious, If you say it loud enough, You'll always sound precocious, Supercalifragilisticexpialidocious!" ĬancellationTokenSource _speakButtonCancellationTokenSource On Android, the current word being spoken is cut off and the speaking stops.On iOS, the current word being spoken is finished and then the speaking stops.There is one difference when cancelling anycodings_xamarin.forms SpeakAsync on iOS vs Android: When the speakButton is tapped, text is anycodings_xamarin.forms spoken and when the cancelButton is anycodings_xamarin.forms tapped while the text is being spoken, anycodings_xamarin.forms the speaking stops. The below code works on both iOS and anycodings_xamarin.forms Android using Xamarin.Essentials v1.3.0 anycodings_xamarin.forms and Xamarin.Forms v4.49. This needs to be done on a single button tap anycodings_xamarin.essentials (both canceling current speech and starting anycodings_xamarin.essentials the "This call has ended" speech) Is there something I am missing? how can I anycodings_xamarin.essentials cancel the current text-to-speech that is anycodings_xamarin.essentials playing and start the next speech anycodings_xamarin.essentials immediately after? " anycodings_xamarin.essentials _BeginSpeaking: couldn't begin playback" SpeechTokenSource = new CancellationTokenSource() Īwait TextToSpeech.SpeakAsync("This call has ended. However anycodings_xamarin.essentials I cannot get the current "SpeakAsync" speech anycodings_xamarin.essentials to stop playing immediately on iOS, or the anycodings_xamarin.essentials next speakasync command to start speaking anycodings_xamarin.essentials the text on iOS once the initial anycodings_xamarin.essentials text-to-speech is cancelled. Trying to use cancellation token as listed anycodings_xamarin.essentials in the documentation anycodings_xamarin.essentials () If (SpeechTokenSource?.IsCancellationRequested ? true) This currently works as expected on android public void CancelSpeech() Using this application as a simulated anycodings_xamarin.essentials operator for a "practice phone call", I anycodings_xamarin.essentials would like to cut off the operator saying anycodings_xamarin.essentials "hello this is." when the user hangs up anycodings_xamarin.essentials the call, and use speak async to start anycodings_xamarin.essentials saying "This call has ended" immediately anycodings_xamarin.essentials after cutting off the previous text to anycodings_xamarin.essentials speech await TextToSpeech.SpeakAsync("Hello this is the operator, thank you for calling, how can I help you?" Having trouble stopping xamarin essentials anycodings_xamarin.essentials text-to-speech in order to start a new text anycodings_xamarin.essentials to speech "SpeakAsync" call w/ anycodings_xamarin.essentials Xamarin.Forms.
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