78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
#!/usr/bin/env node
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/**
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* Generate "Welcome Noderunner" speech using ElevenLabs AI voice.
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* Slower, softer, sci-fi style with reverb/echo effects.
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*
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* Usage:
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* ELEVENLABS_API_KEY=your_key node scripts/generate-welcome-speech.js
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*
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* Optional voice ID (browse https://elevenlabs.io/voice-library/sensual):
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* ELEVENLABS_VOICE_ID=voice_id node scripts/generate-welcome-speech.js
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*/
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import { writeFileSync, mkdirSync, readFileSync, unlinkSync } from 'fs'
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import { dirname, join } from 'path'
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import { fileURLToPath } from 'url'
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import { execSync } from 'child_process'
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const __dirname = dirname(fileURLToPath(import.meta.url))
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const API_KEY = process.env.ELEVENLABS_API_KEY
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// Sarah - mature, reassuring, confident female (softer than Rachel)
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const VOICE_ID = process.env.ELEVENLABS_VOICE_ID || 'EXAVITQu4vr4xnSDxMaL'
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const OUTPUT_PATH = join(__dirname, '../public/assets/audio/welcome-noderunner.mp3')
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const RAW_PATH = join(__dirname, '../public/assets/audio/welcome-noderunner-raw.mp3')
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if (!API_KEY) {
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console.error('Set ELEVENLABS_API_KEY (get a free key at elevenlabs.io)')
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process.exit(1)
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}
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// Slower (0.78), softer (higher stability 0.65), more expressive (style 0.6)
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const res = await fetch(
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`https://api.elevenlabs.io/v1/text-to-speech/${VOICE_ID}?output_format=mp3_44100_128`,
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{
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'xi-api-key': API_KEY,
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},
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body: JSON.stringify({
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text: 'Welcome Noderunner',
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model_id: 'eleven_multilingual_v2',
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voice_settings: {
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stability: 0.65,
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similarity_boost: 0.8,
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style: 0.6,
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use_speaker_boost: true,
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speed: 0.7,
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},
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}),
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}
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)
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if (!res.ok) {
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const err = await res.text()
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console.error('ElevenLabs API error:', res.status, err)
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process.exit(1)
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}
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const buf = Buffer.from(await res.arrayBuffer())
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mkdirSync(dirname(OUTPUT_PATH), { recursive: true })
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writeFileSync(RAW_PATH, buf)
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// Add sci-fi reverb: dense short delays that blend (no distinct echo)
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try {
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execSync(
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`ffmpeg -y -i "${RAW_PATH}" -af "aecho=0.6:0.15:25|45|70:0.55|0.45|0.35,highpass=f=80,equalizer=f=4000:t=q:w=1:g=-1" -q:a 2 "${OUTPUT_PATH}" 2>/dev/null`,
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{ stdio: 'pipe' }
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)
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unlinkSync(RAW_PATH)
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} catch {
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writeFileSync(OUTPUT_PATH, buf)
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try { unlinkSync(RAW_PATH) } catch {}
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}
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console.log('Generated:', OUTPUT_PATH)
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console.log('Add this file to git and deploy.')
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