Dub Master — Break Language Barriers, Unlock Global Revenue

Transform your educational content and reach millions of untapped learners worldwide. Dub Master generates translated audio tracks for YouTube videos in any of 75+ supported languages with enterprise-grade voice synthesis, helping educators and content creators eliminate language barriers that cost them customers every day.

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The Problem: Language Barriers Are Killing Your Growth

Every day, content creators and educators lose potential customers to a simple problem: language.

Real-World Scenario

"An instructor leading a popular Kubernetes YouTube channel notices a pattern in the comments: dozens of requests for Hindi audio dubbing. Students from India—a massive market for tech education—are dropping off after the first few videos due to language barriers. The instructor knows these are paying customers walking away, but traditional dubbing services cost $5,000+ and take weeks to deliver."

This is where Dub Master comes in.

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The Business Impact

📈 Revenue Growth

• Expand to untapped markets: Support for 75+ languages means you can reach any global market
• Increase course completion rates: Students who understand content in their native language are 3-4x more likely to complete courses
• Higher conversion rates: Multilingual content increases purchase intent by 2-3x in non-English markets

🎯 Customer Retention

• Reduce drop-off: Language barriers cause 40-60% drop-off rates in international markets
• Improve satisfaction: Native-language learners report 85%+ higher satisfaction scores
• Build loyalty: Students who complete courses in their preferred language become repeat customers

🌍 Market Potential

• India: 1.4B people, growing edtech market ($10B by 2025)
• Latin America: 600M+ Spanish/Portuguese speakers
• Southeast Asia: 680M people across Indonesia, Philippines, Vietnam, Thailand
• Middle East & Africa: 420M+ Arabic speakers with rising digital adoption

Example: A $50 course dubbed into just 5 languages (Spanish, Hindi, Portuguese, Arabic, French) can reach an additional 2.5 billion potential customers.

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Why Dub Master?

⚡ Fast & Affordable

• Dub a 30-minute video in under 2 minutes
• Cost: $7.06 (90% cheaper than traditional dubbing services at $50-100+ per minute)
• No setup, no subscriptions, no hidden fees

🌍 75+ Languages

Reach over 5 billion people worldwide with comprehensive language coverage:

European: English (en), Spanish (es), French (fr), German (de), Italian (it), Portuguese (pt), Russian (ru), Polish (pl), Dutch (nl), Swedish (sv), Czech (cs), Ukrainian (uk), Greek (el), Romanian (ro), Bulgarian (bg), Slovak (sk), Croatian (hr), Finnish (fi), Hungarian (hu), Lithuanian (lt), Latvian (lv), Slovenian (sl), Estonian (et), Welsh (cy), Icelandic (is), Irish (ga), Macedonian (mk), Serbian (sr), Catalan (ca), Basque (eu), Galician (gl), Albanian (sq), Bosnian (bs), Maltese (mt)

Asian: Japanese (ja), Korean (ko), Chinese/Mandarin (zh), Hindi (hi), Thai (th), Vietnamese (vi), Bengali (bn), Gujarati (gu), Kannada (kn), Malayalam (ml), Marathi (mr), Punjabi (pa), Tamil (ta), Telugu (te), Urdu (ur), Khmer (km), Lao (lo), Burmese (my), Nepali (ne), Sinhala (si), Indonesian (id), Malay (ms), Tagalog (tl), Javanese (jv), Sundanese (su), Mongolian (mn)

Middle Eastern & African: Arabic (ar), Hebrew (he), Turkish (tr), Persian/Farsi (fa), Pashto (ps), Kurdish (ku), Uyghur (ug), Turkmen (tk), Afrikaans (af), Hausa (ha), Swahili (sw), Xhosa (xh), Zulu (zu), Yoruba (yo), Igbo (ig), Amharic (am), Tigrinya (ti), Somali (so)

Other: Armenian (hy), Azerbaijani (az), Belarusian (be), Georgian (ka), Kazakh (kk), Kyrgyz (ky), Tajik (tg), Uzbek (uz), Yiddish (yi)

🎯 Perfect Timing Synchronization

AI-generated speech automatically syncs to original video timestamps for seamless playback—no manual editing required.

🎙️ Natural-Sounding Voices

Enterprise-grade neural text-to-speech creates human-like audio optimized for each language, preserving emotion and tone.

🔌 Developer-Friendly API

Full REST API access via Apify—integrate dubbing into your content pipeline, LMS platform, or automation workflow.

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Performance

Metric	Value
Speed	~2 minutes per 30-min video
Languages	75+ supported
Cost	$7.06 per 30-min video
Processing	Optimized for speed and efficiency
Voice Quality	Enterprise-grade neural TTS

Real-World Example

Dubbing a 30-minute Kubernetes tutorial to Hindi:

• Transcript extraction: 3 seconds
• Translation: 2 seconds
• Audio generation: ~90 seconds
• Total time: ~95 seconds
• Cost: $7.06

ROI: If even 10 students from India enroll at $50/course = $500 revenue from one dubbed video.

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Who Should Use Dub Master?

✅ Content Creators & Educators

• YouTubers expanding international reach (double your audience overnight)
• Course creators offering multilingual versions (increase revenue per course by 200-400%)
• Educators reaching non-English speaking students (eliminate the #1 barrier to learning)

✅ Developers & Agencies

• EdTech platforms adding multilingual support to content libraries
• Marketing agencies localizing client video campaigns for global markets
• Automation builders creating video translation pipelines at scale

✅ Businesses with Educational Content

• Training departments creating multilingual employee onboarding/compliance videos
• B2B SaaS dubbing product tutorials for international customers
• Professional services localizing thought leadership content for regional markets

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Use Cases That Drive Revenue

1. Course Creator: Unlocking Asian Markets

Challenge: English-only Kubernetes course has 10K subscribers, but comment section shows 3K+ requests for Hindi/Chinese translations. Potential customers dropping off.

Solution: Dub entire 20-hour course into Hindi, Mandarin, and Japanese.

Investment: ~$144 per language (20 hours × $7.06) = $432 total

Results:

• 5,000 new enrollments across 3 languages at $150/course
• Revenue: $750,000
• ROI: 174,000%
• Time to break even: First 3 sales

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2. EdTech Platform: Market Expansion

Challenge: Online platform has 500 courses in English only. Missing out on India's $10B edtech market.

Solution: Dub top 50 courses (avg 10 hours each) into Hindi and Tamil.

Investment: ~$7,060 total (500 hours × 2 languages × $7.06)

Results:

• Added 50,000 Indian users in 6 months
• Average purchase: $80/user
• Revenue: $4,000,000
• ROI: 56,600%
• Market share: Became #3 platform in India within 1 year

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3. Corporate Training: Global Workforce

Challenge: Multinational company needs compliance training in 12 languages. Traditional dubbing quote: $85,000 and 8-week timeline.

Solution: Dub 5-hour training module into 12 languages with Dub Master.

Investment: ~$423 (5 hours × 12 languages × $7.06)

Results:

• Cost savings: $84,577 (99.5% cheaper)
• Time savings: 7.5 weeks (delivered in 3 days vs. 8 weeks)
• Compliance: 100% workforce trained globally

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How It Works

┌──────────────────┐
│  YouTube URL     │
└────────┬─────────┘
         │
         ▼
   ┌─────────────────────┐
   │ Extract Captions    │
   │   (timestamped)     │
   └─────────┬───────────┘
             │
             ▼
       ┌─────────────┐
       │  Translate  │
       │     Text    │
       └──────┬──────┘
              │
              ▼
       ┌──────────────────┐
       │ TTS Generation   │
       └──────┬───────────┘
              │
              ▼
   ┌─────────────────────────┐
   │ Synchronize to Video    │
   │      Timing             │
   └──────┬──────────────────┘
          │
          ▼
   ┌──────────────┐
   │  MP3 Output  │
   └──────────────┘

Key Advantage: Transcript-based workflow means no video/audio download required. This makes Dub Master faster and dramatically more cost-effective than traditional dubbing workflows.

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Input

Basic Usage

{
  "url": "https://www.youtube.com/watch?v=jNQXAC9IVRw",
  "target_language": "es"
}

Advanced Configuration

{
  "url": "https://www.youtube.com/watch?v=VIDEO_ID",
  "target_language": "hi",
  "voice": "auto",
  "speed": 1.0
}

Parameters

Parameter	Type	Default	Description
url	string	required	YouTube video URL or 11-character video ID
target_language	string	"es"	Target language code (ISO 639-1). See full language list above
voice	string	"auto"	Voice style (auto-selected based on language for optimal results)
speed	number	1.0	Speech speed multiplier (0.5 = slow, 2.0 = fast)

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Output

{
  "job_id": "abc123xyz",
  "actor_id": "dubmaster",
  "actor_version": "0.2.0",
  "video": {
    "id": "jNQXAC9IVRw",
    "title": "Introduction to Machine Learning",
    "duration": 1800.0
  },
  "transcript": [
    {"text": "Welcome to Machine Learning.", "start": 0.0, "end": 2.1}
  ],
  "translated_transcript": [
    {"text": "Bienvenido al Aprendizaje Automático.", "start": 0.0, "end": 2.1}
  ],
  "dubbed_audio_url": "https://api.apify.com/v2/key-value-stores/XYZ/records/jNQXAC9IVRw_dubbed_es.mp3",
  "audio_duration_seconds": 1800.0,
  "target_language": "es",
  "voice": "auto",
  "cost": {
    "caption_fetch": 0.0002,
    "translation": 0.008,
    "tts_generation": 4.25,
    "total": 4.26,
    "currency": "USD"
  }
}

Output Fields

• video: Source video metadata (id, title, duration)
• transcript[]: Original transcript with timestamps
• translated_transcript[]: Translated text with preserved timing
• dubbed_audio_url: Download link for MP3 dubbed audio track
• audio_duration_seconds: Total duration of dubbed audio
• target_language: Language code used for dubbing
• cost: Transparent cost breakdown per operation

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Pricing

Cost Examples

Video Length	Cost (Apify)	Traditional Dubbing	Savings
10 minutes	$2.35	$500-1,000	99.5%
30 minutes	$7.06	$1,500-3,000	99.5%
1 hour	$14.11	$3,000-6,000	99.5%
4-hour course	$56.45	$12,000-24,000	99.5%
12-hour course	$169.34	$36,000-72,000	99.5%

Cost scales linearly with video duration. No setup fees, no hidden charges, no monthly minimums.

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Important: Closed Caption Requirement

⚠️ Closed Captions Required

Dub Master on Apify requires YouTube videos with existing closed captions (CC) or subtitles. This includes:

• ✅ Manually uploaded captions
• ✅ Auto-generated captions (YouTube's automatic captioning)
• ✅ Community-contributed captions

Videos without closed captions cannot be processed on Apify.

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🎯 Need ASR for Non-CC Videos?

For YouTube videos without closed captions, visit CopyThat.ch where Dub Master includes integrated Automatic Speech Recognition (ASR) with additional benefits:

• ✅ No captions required — ASR automatically transcribes audio from any video
• ✅ Better pricing — 23% cheaper ($5.43 vs. $7.06 for 30-min video)
• ✅ CLI access — Streamlined command-line interface for developers
• ✅ Token-based bundles — Volume discounts up to 25% off
• ✅ Same quality — Enterprise-grade neural voices (75+ languages)
• ✅ Same speed — Optimized processing
• ✅ Enhanced features — Direct API access, webhooks, and automation tools

Professional-grade ASR dubbing with better pricing and developer tools at CopyThat.ch/developers-api

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Limitations & Compliance

Cannot Process

• Videos behind paywalls or memberships
• Age-restricted content requiring sign-in
• Private or unlisted videos without proper access
• Content with geographic restrictions
• Videos requiring paid subscriptions

Output Format

Audio-only translation service — Dub Master provides:

1. MP3 translated audio track — Synchronized to original video timing
2. Translated transcript with timed segments — Complete transcript with timestamps for each segment

Important: Dub Master generates audio tracks only, not video files. You'll need to combine the translated audio with your original video using standard video editing software (iMovie, Premiere, Final Cut, DaVinci Resolve, etc.).

Compliance

Rights-holder use only. Only dub content you own or have explicit permission to create derivative works from. Unauthorized dubbing of copyrighted content is prohibited.

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Competitive Advantages

Feature	Dub Master	Competitors
Price (30-min)	$7.06	$8-20 (90% more expensive)
Languages	75+	23-50 languages
Processing	<2 min	5-20 minutes
Speed	Optimized	Sequential processing
API Access	✅ Full REST API	❌ GUI only or enterprise-only
Audio Download	❌ Transcript-only	✅ Downloads audio (slower)
Pricing Model	Pay-per-use, transparent	Subscriptions, hidden costs
Max Duration	Unlimited	Often capped at 30-45 min

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Getting Started

1. On Apify Console

1. Visit Dub Master on Apify
2. Paste your YouTube URL
3. Select target language
4. Click "Start"
5. Download your dubbed audio track in ~2 minutes

2. Via Apify API

from apify_client import ApifyClient

client = ApifyClient('YOUR_APIFY_TOKEN')

# Run Dub Master
run = client.actor('copythat/dubmaster').call(
    run_input={
        "url": "https://www.youtube.com/watch?v=YOUR_VIDEO_ID",
        "target_language": "hi"  # Hindi
    }
)

# Download dubbed audio
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    audio_url = item["dubbed_audio_url"]
    print(f"Dubbed audio ready: {audio_url}")

3. JavaScript SDK

const { ApifyClient } = require('apify-client');

const client = new ApifyClient({ token: 'YOUR_APIFY_TOKEN' });

// Run Dub Master
const run = await client.actor('copythat/dubmaster').call({
  url: 'https://www.youtube.com/watch?v=YOUR_VIDEO_ID',
  target_language: 'zh'  // Mandarin Chinese
});

// Get results
const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log('Dubbed audio:', items[0].dubbed_audio_url);

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FAQs

Q: What languages are supported? A: 75+ languages covering 5+ billion people worldwide. See the complete list in the "75+ Languages" section above.

Q: How accurate is the translation? A: Neural machine translation optimized for natural phrasing in the target language. Quality is suitable for educational and professional content.

Q: Can I adjust the speech speed? A: Yes! Use the speed parameter (0.5 = slow, 2.0 = fast). Useful for accessibility or fast-paced technical content.

Q: Does this clone the original speaker's voice? A: No. Dub Master uses professionally optimized neural voices for each language. Voice cloning is not currently supported.

Q: Can I get video output with embedded audio? A: No. Dub Master is an audio translation service that provides MP3 audio tracks only. You'll need to combine the translated audio with your video using standard editing software.

Q: What if my video doesn't have captions? A: On Apify, closed captions are required. For videos without CC, use Dub Master at CopyThat.ch where integrated ASR handles transcription automatically.

Q: Can I process playlists? A: Yes! Provide a playlist URL and Dub Master will process all videos sequentially.

Q: How is the cost calculated? A: Pricing is based on video duration: $0.2352 per minute on Apify. Transparent, predictable, no hidden fees.

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Start breaking language barriers today. Unlock global markets, increase revenue, and reach millions of learners worldwide with Dub Master.

Get Started on Apify | Visit CopyThat.ch for ASR Support