fb53aa709f
- NEW: User preferences for STT model and TTS voice - Database: stt_model and tts_voice columns in users table - UI: Voice Preferences section in Settings with dropdowns - API: /api/user/preferences (GET/POST) + /preferences/options - Transcribe: Respects user's STT model (Google, LiteLLM) - TTS: Respects user's TTS voice (Google, LiteLLM, OpenAI, ElevenLabs) - Preview: Test TTS voice before saving - Available models/voices auto-detected from provider config
47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
// ============================================================
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// TTS GOOGLE — Google Cloud Text-to-Speech (direct, no LiteLLM)
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// Uses google-auth-library (transitive dep of @google-cloud/vertexai)
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// Voices: en-US-Journey-F (female), en-US-Journey-D (male),
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// en-US-Studio-O, en-US-Neural2-C, etc.
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// Requires: GOOGLE_VERTEX_PROJECT, ADC or GOOGLE_APPLICATION_CREDENTIALS
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// ============================================================
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async function synthesizeWithGoogleTTS(text, voiceName) {
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var GoogleAuth = require('google-auth-library').GoogleAuth;
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var axios = require('axios');
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var auth = new GoogleAuth({
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scopes: ['https://www.googleapis.com/auth/cloud-platform']
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});
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var client = await auth.getClient();
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var tokenData = await client.getAccessToken();
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var token = tokenData.token;
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var voice = voiceName || process.env.GOOGLE_TTS_VOICE || 'en-US-Journey-F';
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var langCode = voice.substring(0, 5); // e.g. en-US
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var resp = await axios.post(
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'https://texttospeech.googleapis.com/v1/text:synthesize',
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{
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input: { text: text },
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voice: { languageCode: langCode, name: voice },
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audioConfig: { audioEncoding: 'MP3' }
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},
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{
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headers: {
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'Authorization': 'Bearer ' + token,
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'Content-Type': 'application/json'
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},
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timeout: 30000
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}
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);
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return Buffer.from(resp.data.audioContent, 'base64');
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}
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function isGoogleTTSConfigured() {
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if (!process.env.GOOGLE_VERTEX_PROJECT) return false;
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try { require('google-auth-library'); return true; } catch(e) { return false; }
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}
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module.exports = { synthesizeWithGoogleTTS, isGoogleTTSConfigured };
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