Android 上的语音转文本

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19 天前已关闭。

Answer 1

如果您不想使用 RecognizerIntent 进行语音识别，您仍然可以使用 SpeechRecognizer 类来执行此操作。然而，使用该类比使用意图要棘手一些。最后一点，我强烈建议让用户知道他何时被记录，否则当他最终发现时，他可能会非常不安。

编辑：一个小例子，灵感来自（但改变），
SpeechRecognizer 导致 ANR...我需要有关 Android 语音的帮助API

Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
        RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
        "com.domain.app");

SpeechRecognizer recognizer = SpeechRecognizer
        .createSpeechRecognizer(this.getApplicationContext());
RecognitionListener listener = new RecognitionListener() {
    @Override
    public void onResults(Bundle results) {
        ArrayList<String> voiceResults = results
                .getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        if (voiceResults == null) {
            System.out.println("No voice results");
        } else {
            System.out.println("Printing matches: ");
            for (String match : voiceResults) {
                System.out.println(match);
            }
        }
    }

    @Override
    public void onReadyForSpeech(Bundle params) {
        System.out.println("Ready for speech");
    }

    /**
     *  ERROR_NETWORK_TIMEOUT = 1;
     *  ERROR_NETWORK = 2;
     *  ERROR_AUDIO = 3;
     *  ERROR_SERVER = 4;
     *  ERROR_CLIENT = 5;
     *  ERROR_SPEECH_TIMEOUT = 6;
     *  ERROR_NO_MATCH = 7;
     *  ERROR_RECOGNIZER_BUSY = 8;
     *  ERROR_INSUFFICIENT_PERMISSIONS = 9;
     *
     * @param error code is defined in SpeechRecognizer
     */
    @Override
    public void onError(int error) {
        System.err.println("Error listening for speech: " + error);
    }

    @Override
    public void onBeginningOfSpeech() {
        System.out.println("Speech starting");
    }

    @Override
    public void onBufferReceived(byte[] buffer) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onEndOfSpeech() {
        // TODO Auto-generated method stub

    }

    @Override
    public void onEvent(int eventType, Bundle params) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onPartialResults(Bundle partialResults) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onRmsChanged(float rmsdB) {
        // TODO Auto-generated method stub

    }
};
recognizer.setRecognitionListener(listener);
recognizer.startListening(intent);

重要提示：从 UI 线程运行此代码，并确保您具有所需的权限。

<uses-permission android:name="android.permission.RECORD_AUDIO" />

Answer 2

在您的活动中执行以下操作：

Image button buttonSpeak = findView....;// initialize it.
buttonSpeak.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            promptSpeechInput();
        }
    });



private void promptSpeechInput() {
    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
    intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
            getString(R.string.speech_prompt));
    try {
        startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
    } catch (ActivityNotFoundException a) {
        Toast.makeText(getApplicationContext(),
                getString(R.string.speech_not_supported),
                Toast.LENGTH_SHORT).show();
    }
}

    @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent 
     data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case REQ_CODE_SPEECH_INPUT: {
            if (resultCode == RESULT_OK && null != data) {

                result = data
                        .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

      EditText input ((EditText)findViewById(R.id.editTextTaskDescription));
      input.setText(result.get(0)); // set the input data to the editText alongside if want to.

            }
            break;
        }

    }
}

Answer 3

Android 内置的是一个客户端活动（您通过意图启动），它捕获您的语音并将音频发送到 Google 服务器进行识别。你可以构建类似的东西。您可以自己托管 sphinx（或使用 Yapme.com 等云识别服务），自己捕获语音，将音频发送到识别器，然后将文本结果返回到您的应用程序。我不知道如何在不使用 Android 上的 Intent（或通过 Chrome）的情况下利用 Google 识别服务。

到目前为止，我所看到的普遍共识是，今天的智能手机确实没有足够的能力来进行类似狮身人面像的语音识别。您可能想尝试自己运行客户端识别器，但 Google 使用服务器识别器。

有关一些相关信息，请参阅：

• Google 的语音搜索语音识别服务
• 是否可以在 Android 之外使用 Android API项目？
• 语音识别 API

Answer 4

添加权限到 MANIFEST：-

"android.permission.RECORD_AUDIO"

单击按钮时调用 getSpeechInput()（使用监听器）

public void getSpeechInput() {

    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());

    if (intent.resolveActivity(getPackageManager()) != null) {
        startActivityForResult(intent, 10);
    } else {
        Toast.makeText(this, "Your Device Don't Support Speech Input", Toast.LENGTH_SHORT).show();
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case 10:
            if (resultCode == RESULT_OK && data != null) {
                ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                Toast.makeText(this, result.get(0), Toast.LENGTH_SHORT).show();

            }
            break;
    }
}