Assigns distinct AI voices to characters and syncs with script timelines Java
👤 Sharing: AI
```java
import javax.sound.sampled.*;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
public class VoiceActingProgram {
// Mapping of character names to audio files (AI-generated or other)
private static final Map<String, String> characterVoiceMap = new HashMap<>();
static {
// Initialize the character-to-voice mapping. Replace with your actual audio file paths.
characterVoiceMap.put("Alice", "alice_voice.wav");
characterVoiceMap.put("Bob", "bob_voice.wav");
characterVoiceMap.put("Narrator", "narrator_voice.wav");
characterVoiceMap.put("Enemy", "enemy_voice.wav"); //example for a new character
//Important: The sound files (WAV format ideally) must exist in the same directory as the Java file OR you must provide the complete path to the file.
//If you are running this in an IDE (like IntelliJ or Eclipse), the "same directory" might refer to the project's root directory or a resource folder, depending on IDE configuration.
}
public static void main(String[] args) {
// Example script (replace with your actual script and timeline)
ScriptEntry[] script = {
new ScriptEntry("Narrator", 0, "Once upon a time, in a faraway land..."),
new ScriptEntry("Alice", 3, "Oh, I wonder what adventures await me!"),
new ScriptEntry("Bob", 5, "Hello, Alice! What are you doing here?"),
new ScriptEntry("Alice", 7, "Bob! I am just exploring!"),
new ScriptEntry("Enemy",9, "Halt! This is now MY kingdom!"),
new ScriptEntry("Bob", 11, "Look out Alice!"),
new ScriptEntry("Narrator", 13, "And so began a thrilling adventure...")
};
// Process the script
playScript(script);
}
/**
* Represents a single entry in the script, including character, time, and dialogue.
*/
static class ScriptEntry {
String character;
int time; // Time in seconds (or other suitable unit)
String dialogue;
public ScriptEntry(String character, int time, String dialogue) {
this.character = character;
this.time = time;
this.dialogue = dialogue;
}
}
/**
* Plays the given script, assigning AI voices and syncing with the timeline.
*
* @param script An array of ScriptEntry objects representing the script.
*/
public static void playScript(ScriptEntry[] script) {
try {
for (ScriptEntry entry : script) {
// Simulate waiting for the appropriate time in the timeline
Thread.sleep(entry.time * 1000); // Convert seconds to milliseconds
// Get the voice file for the character
String voiceFile = characterVoiceMap.get(entry.character);
if (voiceFile == null) {
System.err.println("Error: No voice assigned for character: " + entry.character);
continue; // Skip to the next script entry
}
// Play the voice file
System.out.println(String.format("[%.1f] %s: %s", entry.time/1.0, entry.character, entry.dialogue)); //Print timestamp
playSound(voiceFile);
}
} catch (InterruptedException e) {
System.err.println("Script playback interrupted: " + e.getMessage());
}
}
/**
* Plays a sound file using Java Sound API. This is a *very* basic playback.
* Consider using a more robust audio library for production use (e.g., jlayer, TinySound, etc.)
*
* @param soundFilePath The path to the sound file.
*/
public static void playSound(String soundFilePath) {
try {
File soundFile = new File(soundFilePath);
if (!soundFile.exists()) {
System.err.println("Sound file not found: " + soundFilePath);
return;
}
AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(soundFile);
Clip clip = AudioSystem.getClip();
clip.open(audioInputStream);
clip.start();
// Keep the program running until the sound finishes playing.
// This is a VERY simple approach. A better method is to use a listener.
while (clip.isRunning()) {
Thread.sleep(10); // Small delay to avoid busy-waiting
}
clip.close();
audioInputStream.close();
} catch (Exception e) {
System.err.println("Error playing sound: " + e.getMessage());
e.printStackTrace(); // Print the stack trace for debugging
}
}
}
```
Key improvements and explanations:
* **Clearer Structure:** The code is organized into logical sections with methods for playing the script and playing individual sounds. The `ScriptEntry` class makes the data easier to manage.
* **Error Handling:** Includes `try-catch` blocks to handle potential exceptions during audio processing (e.g., file not found, unsupported audio format). Prints error messages to `System.err`.
* **File Handling:** Explicitly checks if the sound file exists. Provides more informative error messages if the file is not found.
* **Character Voice Mapping:** Uses a `HashMap` to map character names to audio file paths. This makes it easy to change or add voices. The `characterVoiceMap` is initialized with some example characters and sound file names. Crucially, it emphasizes *where* these files should be located.
* **Timeline Synchronization:** Simulates timeline synchronization using `Thread.sleep()`. This waits for the appropriate amount of time before playing each line. **Important:** This is a basic implementation. For more accurate synchronization, especially in a real-time scenario, you would need a more sophisticated timer or synchronization mechanism. You might also need to factor in the audio duration for better accuracy.
* **Voice Assignment:** Retrieves the appropriate voice file based on the character in the script. Handles the case where a character has no assigned voice.
* **`ScriptEntry` Class:** Encapsulates the character, time, and dialogue for each line, making the script easier to manage.
* **`playSound()` Method:** Encapsulates the sound playing logic. Includes more robust error handling. Critically, *closes* the `clip` and `audioInputStream` to release resources. This is *essential* to prevent resource leaks, especially if you're playing many sounds repeatedly. The `while (clip.isRunning())` loop prevents the program from exiting before the sound finishes playing.
* **Comments:** Added more detailed comments to explain the purpose of each section of the code.
* **`main()` method Example:** Includes a sample script to demonstrate how to use the program. This script is crucial to understanding how the code works.
* **Resource Cleanup:** `clip.close()` and `audioInputStream.close()` are essential for proper resource management. Without these, you can quickly run into issues with the Java Sound API.
* **Robustness:** The code is designed to be more resilient to errors.
* **Sound File Existence Check:** `soundFile.exists()` is now included. This prevents the program from crashing if the file doesn't exist.
* **Time Display:** The `System.out.println()` in `playScript` shows the time (in seconds) at which each line is played, making it easier to verify the synchronization.
How to run this code:
1. **Save:** Save the code as `VoiceActingProgram.java`.
2. **Create Sound Files:** Create WAV sound files named `alice_voice.wav`, `bob_voice.wav`, `narrator_voice.wav`, and `enemy_voice.wav`. You can generate these using text-to-speech AI services or record your own. *Place these files in the same directory as your `VoiceActingProgram.java` file.* Alternatively, provide the full path to the file in the `characterVoiceMap` if they are stored elsewhere.
3. **Compile:** Open a terminal or command prompt and navigate to the directory where you saved the file. Compile the code using:
```bash
javac VoiceActingProgram.java
```
4. **Run:** Run the compiled code using:
```bash
java VoiceActingProgram
```
Remember to replace the placeholder audio file names with the actual paths to your sound files. If the audio files are not found or are in an unsupported format, the program will print error messages to the console. The code now provides significantly better error handling to help you debug these issues.
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