import { exec } from 'child_process';
import { promisify } from 'util';
import * as fs from 'fs/promises';
const execAsync = promisify(exec);
export class TextToSpeechConverter {
async generateAudio(text: string, outputFile: string): Promise<void> {
try {
console.log('Generating audio narration with Edge TTS...');
console.log('Text length: ' + text.length + ' characters');
const silenceRegex = /\[\[slnc \d+\]\]/g;
const cleanedText = text.replace(silenceRegex, '');
const tempTextFile = outputFile.replace(/\.mp3$/, '.txt');
await fs.writeFile(tempTextFile, cleanedText, 'utf8');
const edgeCommand = 'edge-tts --voice en-US-JennyNeural --rate=-5% -f "' + tempTextFile + '" --write-media "' + outputFile + '"';
console.log('Running: edge-tts with JennyNeural voice');
await execAsync(edgeCommand);
await fs.unlink(tempTextFile);
const stats = await fs.stat(outputFile);
console.log('Audio content written to file: ' + outputFile);
console.log('Audio file size: ' + (stats.size / 1024 / 1024).toFixed(2) + ' MB');
} catch (error) {
console.error('TTS Error:', error);
throw error;
}
}
}
