contaigents/dist/tests/echogardenTest.js

Modular AI Content Ecosystem with Audio Generation

/**
 * Test script for Echogarden TTS integration
 * This script tests the local TTS functionality using Echogarden
 */
import { AudioGenerator } from '../services/audioGenerator.js';
import path from 'path';
async function testEchogardenTTS() {
    console.log('🧪 Testing Echogarden TTS Integration');
    console.log('='.repeat(50));
    try {
        // Test 1: Basic Echogarden TTS with default settings
        console.log('\n📝 Test 1: Basic Echogarden TTS (Kokoro engine)');
        const audioGenerator1 = new AudioGenerator({
            provider: 'echogarden',
            voice: 'Bella',
            model: 'kokoro'
        });
        const testText1 = "Hello! This is a test of the Echogarden text-to-speech integration. It runs completely offline without requiring any API keys.";
        console.log(`🎙️ Generating audio for: "${testText1}"`);
        const audioBuffer1 = await audioGenerator1.generateAudio(testText1);
        const outputPath1 = path.join(process.cwd(), 'demo', 'echogarden_test_kokoro.wav');
        await audioGenerator1.saveAudioToFile(outputPath1, audioBuffer1);
        console.log(`✅ Test 1 passed! Audio saved to: ${outputPath1}`);
        console.log(`📊 Audio size: ${audioBuffer1.length} bytes`);
        // Test 2: Different voice (Nicole)
        console.log('\n📝 Test 2: Different Voice (Nicole)');
        const audioGenerator2 = new AudioGenerator({
            provider: 'echogarden',
            voice: 'Nicole',
            model: 'kokoro' // Use kokoro for now since vits might not be available
        });
        const testText2 = "This is a test using the Nicole voice, which provides high-quality neural text-to-speech synthesis.";
        console.log(`🎙️ Generating audio for: "${testText2}"`);
        const audioBuffer2 = await audioGenerator2.generateAudio(testText2);
        const outputPath2 = path.join(process.cwd(), 'demo', 'echogarden_test_nicole.wav');
        await audioGenerator2.saveAudioToFile(outputPath2, audioBuffer2);
        console.log(`✅ Test 2 passed! Audio saved to: ${outputPath2}`);
        console.log(`📊 Audio size: ${audioBuffer2.length} bytes`);
        // Test 3: Sarah voice
        console.log('\n📝 Test 3: Sarah Voice');
        const audioGenerator3 = new AudioGenerator({
            provider: 'echogarden',
            voice: 'Sarah',
            model: 'kokoro' // Use kokoro for consistency
        });
        const testText3 = "This is a test using the Sarah voice, which provides another variation of high-quality speech synthesis.";
        console.log(`🎙️ Generating audio for: "${testText3}"`);
        const audioBuffer3 = await audioGenerator3.generateAudio(testText3);
        const outputPath3 = path.join(process.cwd(), 'demo', 'echogarden_test_sarah.wav');
        await audioGenerator3.saveAudioToFile(outputPath3, audioBuffer3);
        console.log(`✅ Test 3 passed! Audio saved to: ${outputPath3}`);
        console.log(`📊 Audio size: ${audioBuffer3.length} bytes`);
        // Test 4: Voice availability check
        console.log('\n📝 Test 4: Voice Availability Check');
        const availableVoices = audioGenerator1.getAvailableVoices();
        console.log(`🎭 Available voices for Kokoro: ${availableVoices.join(', ')}`);
        const isVoiceAvailable = audioGenerator1.isVoiceAvailable('Bella');
        console.log(`✅ Voice 'Bella' available: ${isVoiceAvailable}`);
        console.log('\n🎉 All Echogarden tests passed successfully!');
        console.log('🔧 Echogarden TTS integration is working correctly.');
        console.log('\n💡 Benefits of Echogarden:');
        console.log('   • Runs completely offline (no internet required)');
        console.log('   • No API keys needed');
        console.log('   • High-quality neural voices');
        console.log('   • Multiple engines (Kokoro, VITS, eSpeak)');
        console.log('   • Cross-platform support');
    }
    catch (error) {
        console.error('❌ Echogarden test failed:', error);
        if (error instanceof Error) {
            if (error.message.includes('echogarden')) {
                console.log('\n💡 Troubleshooting tips:');
                console.log('   • Make sure echogarden is installed: npm install echogarden');
                console.log('   • Echogarden may need to download models on first use');
                console.log('   • Check that you have sufficient disk space for models');
            }
        }
        throw error;
    }
}
// Run the test if this file is executed directly
if (import.meta.url === `file://${process.argv[1]}`) {
    testEchogardenTTS().catch(console.error);
}
export { testEchogardenTTS };