
How to Create AI Characters with HeyGen Avatar IV and ElevenLabs Voice Changer
Create studio-quality AI characters by animating images with HeyGen's Avatar IV and enhancing voiceovers with ElevenLabs Voice Changer.
Learn how ElevenLabs created SB1, an infinite soundboard powered by their text-to-sound effects AI audio model, allowing users to generate any sound on demand.
Imagine a soundboard that can generate unlimited sounds on demand. That’s exactly what we built at ElevenLabs — meet SB1, our infinite soundboard. On the surface, it looks like a typical grid of pads you trigger with clicks or keyboard shortcuts. Under the hood, it’s powered by our text-to-sound effects AI audio model.
To use it you simply describe any sound you can think of, and SB1 will generate it. There are also some predefined default sounds, but even they can be replaced.
विचार से प्रोटोटाइप तकsoft ambient forest sounds” or “dramatic audience gasp,” and get a ready-to-use sound effect?
हमने एक सरल सवाल से शुरुआत की: क्या होगा अगर आप एक विवरण टाइप कर सकें, जैसे “
Before jumping in to the code we turned to Lovable to create a basic prototype version of what would become SB1. Not connected to the API yet, it gave us a chance to experiment with design choices and button placements, before our brilliant team created the final UI and code.
कोड में कूदने से पहले हमने
1 | POST https://api.elevenlabs.io/v1/sound-generation |
You send a JSON payload with your prompt, the number of variations you want (we default to four), and your API key in the Authorization header.
आप अपने प्रॉम्प्ट के साथ एक JSON पेलोड भेजते हैं, जितनी विविधताएँ आप चाहते हैं (हम चार पर डिफ़ॉल्ट करते हैं), और आपके API कुंजी को ऑथराइजेशन हेडर में।
/v1/sound-effects/generate
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
prompt
(string): description of the soundn
(integer): number of variations (1–10)format
(string, optional): wav or mp3 (defaults to wav)A sample request looks like this:
1 | { |
2 | "prompt": "rain hitting the roof of a tent", |
3 | "n": 4, |
4 | "format": "wav" |
5 | } |
6 |
And you’ll receive back an array of four URLs. We designed the API so that it scales to any use case — from ad hoc soundboard creation to bulk generation for game assets.
SB1 इंटरफ़ेस का निर्माण
When you click an empty pad in custom mode, a prompt dialog appears. You type your description, hit Generate, and the API returns four options. You audition them inline, pick your favorite, and the pad updates immediately. Keyboard bindings let you trigger pads with key presses, so you can play rhythms or sound cues live.
जब आप कस्टम मोड में एक खाली पैड पर क्लिक करते हैं, तो एक प्रॉम्प्ट डायलॉग दिखाई देता है। आप अपना विवरण टाइप करते हैं,
We generated each by sending prompts like “light rain dripping on leaves” and “soft waves rolling onto a shore.” Then we set those pads to loop, creating a backdrop for focus or meditation.
You don’t need audio samples from a drum library. Just describe “super bassy 808 kick” or “tight snare snap,” and the API gives you four versions to audition. We mapped them to the A, S, and D keys for a live performance demo.
आपको ड्रम लाइब्रेरी से ऑडियो सैंपल की आवश्यकता नहीं है। बस “सुपर बेस्सी 808 किक” या “टाइट स्नेर स्नैप” का वर्णन करें, और API आपको ऑडिशन के लिए चार संस्करण देता है। हमने उन्हें लाइव प्रदर्शन डेमो के लिए A, S, और D कीज़ पर मैप किया।
कस्टम प्रीसेट्सShare to copy a link or post directly to social media. Anyone with the link loads your SB1 configuration and can play your curated sounds.
To get started yourself, लो लेटेंसी. You’ll find code samples in JavaScript, Python, and cURL that show how to integrate the SFX API into your projects.
आगे क्या?
SB1 हमारे साउंड-इफेक्ट मॉडल का सिर्फ एक डेमो है। हम OBS और डिजिटल ऑडियो वर्कस्टेशंस के लिए प्लगइन्स की खोज कर रहे हैं, ताकि आप अपने स्ट्रीमिंग या प्रोडक्शन सॉफ़्टवेयर को छोड़े बिना नई ध्वनियाँ उत्पन्न कर सकें। हम मॉडल को संगीत-संबंधी प्रॉम्प्ट्स पर प्रदर्शन सुधारने के लिए भी फाइन-ट्यून कर रहे हैं — जैसे विदेशी पर्कशन या सिंथ टेक्सचर्स।
Give it a try for free today — no MP3 library required.
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