Class SpeechRecognizer

java.lang.Object

com.codename1.media.SpeechRecognizer

public final class SpeechRecognizer
extends Object

On-device speech-to-text.

• iOS -- backed by SFSpeechRecognizer. The first call prompts the user for microphone + speech-recognition permission (the latter requires NSSpeechRecognitionUsageDescription in Info.plist, which the build server injects automatically when this class is referenced).
• Android -- backed by android.speech.SpeechRecognizer. May use Google's cloud speech endpoint on older devices; on Pixel and modern flagships it runs fully on-device.
• JavaSE simulator -- no built-in implementation. Add cn1-ai-whisper to enable on-device transcription via whisper.cpp, or expect isSupported() to return false.

if (SpeechRecognizer.isSupported()) {
    SpeechRecognizer.recognizeOnce(new RecognitionCallback.Adapter() {
        public void onResult(String t, float c, String[] a) {
            form.findTextField().setText(t);
        }
    });
}

Method Summary

Modifier and Type	Method	Description
static boolean	isSupported()	True when the current platform implements on-device or platform-bundled speech recognition.
static void	recognize(RecognitionOptions options, RecognitionCallback callback)	Starts a recognition session.
static void	recognizeOnce(RecognitionCallback callback)	Captures one utterance with default options (RecognitionOptions en-US, partial results on, max 1 alternative).
static void	stop()	Stops the active recognition session, if any.

Methods inherited from class Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isSupported

public static boolean isSupported()

True when the current platform implements on-device or platform-bundled speech recognition. Even when true, the user may still deny permission at runtime.

recognizeOnce

public static void recognizeOnce(RecognitionCallback callback)

Captures one utterance with default options (RecognitionOptions en-US, partial results on, max 1 alternative). Convenience wrapper around recognize(RecognitionOptions, RecognitionCallback).

recognize

public static void recognize(RecognitionOptions options,
 RecognitionCallback callback)

Starts a recognition session. Use RecognitionOptions.setContinuous(boolean) to keep listening across silences. Call stop() to end a continuous session.

stop

public static void stop()

Stops the active recognition session, if any. No-op when none.