如何在Java（Android工作室）中运行python语音识别脚本？

Question

我对这个主题进行了很多搜索，查看了 Jython 和 Chaquopy 等选项，但无论我做什么，总是会出现错误。

我想要做的是，当我的 Android 应用程序上的按钮被点击时，python 脚本（在 [=45= 中使用 gTTS API 进行语音识别]) 将运行.

这是我的代码的样子（使用 Chaquopy）：

MainActivity.java:

import androidx.appcompat.app.AppCompatActivity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageButton;
import android.content.res.AssetFileDescriptor;
import com.chaquo.python.*;
import com.chaquo.python.android.AndroidPlatform;

import java.io.IOException;

public class MainActivity extends AppCompatActivity implements View.OnTouchListener{

    ImageButton AutoCruiseButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (!Python.isStarted()) {
            Python.start(new AndroidPlatform(this));
        }

        AutoCruiseButton = (ImageButton) findViewById(R.id.auto); 
        AutoCruiseButton.setOnTouchListener(this);
        final MediaPlayer beep1 = MediaPlayer.create(this, R.raw.beep1);
        final MediaPlayer mp = new MediaPlayer();

        AutoCruiseButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                stopAndPlay(R.raw.beep1, mp);
                Python python = Python.getInstance();
                PyObject file = python.getModule("voice_recognition");
                PyObject command = file.callAttr("myCommand");
            }
        });

顶级构建文件：build.gradle

buildscript {
    
    repositories {
        google()
        jcenter()
        maven { url "https://chaquo.com/maven" }
        
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.2'
        classpath "com.chaquo.python:gradle:8.0.0"

    
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

build.gradle (:app):

apply plugin: 'com.android.application'
apply plugin: 'com.chaquo.python'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.example.myapplication"
        sourceSets{
            main{
                python{
                    srcDirs = ["src/main/python"]
                }
            }
        }
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        ndk {
            abiFilters "armeabi-v7a", "x86"
        }
        python {
            buildPython "C:/Users/Alya/AppData/Local/Microsoft/WindowsApps/python3"
            buildPython "python3"
        }
        ndk {
            abiFilters "armeabi-v7a", "x86"
        }
    }



    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        targetCompatibility = 1.8
        sourceCompatibility = 1.8
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}

voice_recognition.py（位于 Android Studio 项目主文件夹下的 python 文件夹中）：

from gtts import gTTS 
import speech_recognition as sr
import playsound
import sys

counter = 0

def myCommand():
    r = sr.Recognizer()
    global counter
    if counter == 0:
        playsound.playsound('C:/Users/Alya/Desktop/KITT/Audio_Clips/What_Can_I_Do.mp3')
    with sr.Microphone() as source:
        counter += 1
        print('I am ready for your next command')
        r.pause_threshold = 1
        r.adjust_for_ambient_noise(source, duration=1)
        audio = r.listen(source)
    try: 
        command = r.recognize_google(audio)
        print('You said ' + command + '\n')

    #loop back in case not understood
    except sr.UnknownValueError:
        print("I didn't hear that")
        command = ""
        playsound.playsound('C:/Users/Alya/Desktop/KITT/Audio_Clips/Go_Ahead.mp3')
        assistant(myCommand())

    return command

#if statements for executing commands
def assistant(command):
    if 'introduce yourself' in command:
        playsound.playsound('C:/Users/Alya/Desktop/KITT/Audio_Clips/KITT_Intro.mp3')

我知道 Chaquopy 可以工作，因为我测试了一个基本的 python 文件并且我的模拟器没有崩溃。这是单击按钮运行 python 脚本时出现的错误：

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.myapplication, PID: 26779
    com.chaquo.python.PyException: ModuleNotFoundError: No module named 'gtts'
        at <python>.java.chaquopy.import_override(import.pxi:20)
        at <python>.java.chaquopy.import_override(import.pxi:60)
        at <python>.voice_recognition.<module>(voice_recognition.py:1)
        at <python>.importlib._bootstrap._call_with_frames_removed(<frozen importlib._bootstrap>:219)
        at <python>.importlib._bootstrap_external.exec_module(<frozen importlib._bootstrap_external>:783)
        at <python>.java.android.importer.exec_module(importer.py:521)
        at <python>.importlib._bootstrap._load_unlocked(<frozen importlib._bootstrap>:671)
        at <python>.importlib._bootstrap._find_and_load_unlocked(<frozen importlib._bootstrap>:975)
        at <python>.importlib._bootstrap._find_and_load(<frozen importlib._bootstrap>:991)
        at <python>.importlib._bootstrap._gcd_import(<frozen importlib._bootstrap>:1014)
        at <python>.importlib.import_module(__init__.py:127)
        at <python>.chaquopy_java.Java_com_chaquo_python_Python_getModule(chaquopy_java.pyx:154)
        at com.chaquo.python.Python.getModule(Native Method)
        at com.example.myapplication.MainActivity.onClick(MainActivity.java:125)
        at android.view.View.performClick(View.java:6597)
        at android.view.View.performClickInternal(View.java:6574)
        at android.view.View.access00(View.java:778)
        at android.view.View$PerformClick.run(View.java:25885)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I/Process: Sending signal. PID: 26779 SIG: 9

关于如何进行的任何建议？我真的宁愿将我的 Android 应用程序保留在 Java 中，因为该接口已经实现。我怎样才能修复我的代码以便它与 Chaquopy 一起工作？或者，如果 Jython 是更好的选择，我将如何做？

Answer 1

您必须使用 pip 将 gtts 安装到您的应用中，如 here 所述。您正在使用的其他 third-party 模块也是如此。

此外，您将无法从 Android 应用程序访问 Windows 桌面上的文件。相反，将它们包含在您的 Python 源目录中，然后按照 here.

所述相对于 __file__ 访问它们

不幸的是，这个脚本可能会遇到其他更困难的问题：

您可能无法通过 Python 代码访问设备的麦克风或扬声器，因此您必须改用 Android Java API。
如 here 所述，recognize_google 需要 FLAC 转换器，Chaquopy 目前无法支持。

抱歉，我不能提供更多帮助。

如何在Java（Android工作室）中运行python语音识别脚本？

How to run python voice recognition script in Java (Android Studio)?

python

java

android

voice-recognition

chaquopy