A better alternative for offline recognition is available here.
With this, you can add speech recognition feature to your application without google speech recognition popup (check attached example),
SpeechRecognitionNoUI
Author: @Biswajit
Version: 1.6
Here is the original thread. I took some ideas and codes to build this library.
Note: Remember to INTERNET, RECORD_AUDIO and NOTIFICATION_POLICY_ACCESS_SETTINGS permission.
For SDK v30: Add this following code to your project manifest.
Update 1.1: Added NoRecognizerBeep option. Set true if you don't want beep sound before and after speech recognition.
Update 1.2:
Update 1.4: Added proper error handling and warning message for DND mode. (Check the example)
Update 1.5: Added BufferReceived event.
Update 1.6: Fixed an issue with the offline voice recognition.
With this, you can add speech recognition feature to your application without google speech recognition popup (check attached example),
SpeechRecognitionNoUI
Author: @Biswajit
Version: 1.6
- SpeechRecognitionNoUI
- Events:
- ReadyForSpeech
Called when the endpointer is ready for the user to start speaking. - BeginningOfSpeech
The user has started to speak. - EndOfSpeech
The user stops speaking. - Error (Msg As String)
A network or recognition error occurred. - PartialResults (Texts As List)
Partial recognition results are available. - Results (Texts As List)
Recognition results are ready. - RmsChanged (RmsValue As Int)
The sound level in the audio stream has changed. There is no guarantee that this method will be called. - BufferReceived(buffer() As Byte)
The purpose of this function is to allow giving feedback to the user regarding the captured audio. There is no guarantee that this method will be called.
- ReadyForSpeech
- Functions:
- NoRecognizerBeep As Boolean
Set true if you dont want beep sound before and after speech recognition.
Starting from Android 7+ this method will throw an exception if the user set the Do Not Disturb mode,
unless your app has requested a special permission with NOTIFICATION_POLICY_ACCESS_SETTINGS.
(Check example) - Initialize (eventname As String, callback As Object) As Boolean
- IsInitialized As Boolean
- IsRecognitionAvailable As Boolean
Check if Speech Recognition is available or not - StartListening (LANGUAGE As String, PARTIAL_RESULTS As Boolean, PREFER_OFFLINE As Boolean) As String
Start listening.
LANGUAGE : Recognition language. IETF language tag (as defined by BCP 47), for example "en-US"
PARTIAL_RESULTS : indicate whether partial results should be returned by the recognizer as the user speaks.
PREFER_OFFLINE : indicate whether to only use an offline speech recognition engine. If false then either network or offline recognition engines may be used - StopListening As String
- NoRecognizerBeep As Boolean
- Events:
Here is the original thread. I took some ideas and codes to build this library.
Note: Remember to INTERNET, RECORD_AUDIO and NOTIFICATION_POLICY_ACCESS_SETTINGS permission.
For SDK v30: Add this following code to your project manifest.
B4X:
AddManifestText(
<queries>
<intent>
<action android:name="android.speech.RecognitionService" />
</intent>
</queries>)Update 1.1: Added NoRecognizerBeep option. Set true if you don't want beep sound before and after speech recognition.
Update 1.2:
- Added ReadyForSpeech event.
- Fixed recognition language problem
Update 1.4: Added proper error handling and warning message for DND mode. (Check the example)
Update 1.5: Added BufferReceived event.
Update 1.6: Fixed an issue with the offline voice recognition.
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