ElevenLabs SFX V2 is the second generation of ElevenLabs’ text-to-sound-effects model. Where the original SFX model handled basic sound generation, V2 delivers professional-grade audio at 48kHz — the sample rate standard used in film post-production, broadcast, and professional game audio. The model understands acoustic concepts, environmental contexts, material properties, and spatial relationships, allowing it to generate contextually appropriate sound effects from descriptive natural language prompts.
SFX V2 is available through the Sound Effects section of the ElevenLabs web dashboard and through the ElevenLabs API. In the dashboard, users type a description, optionally set the clip duration (up to 30 seconds, or auto-determined from the prompt), adjust the guidance level (how closely the model adheres to the prompt versus exploring creative variations), and generate multiple sample options to choose from before downloading.
Prompt Craft: How to Get the Best Results
Describe Source, Environment, and Acoustic Character
The most effective SFX V2 prompts include three elements: the sound source (what is making the sound), the environment (where the sound is occurring), and the acoustic character (qualities like reverb, volume, distance, texture). Compare these two prompts for the same general effect:
Weak prompt: ‘thunder’. This generates generic thunder — functional but not distinctive.
Strong prompt: ‘Distant thunder rumbling across a vast open plain during a summer storm, gradually building in intensity, with the low frequency resonance of a large open space.’ This generates a specific, atmospheric, cinematically appropriate sound with directional character and spatial quality.
Prompt Examples by Category
| Category | Example Prompt | Use Case |
| Environmental | Gentle ocean waves lapping against a rocky shore at low tide, with seagull calls in the distance | Nature documentaries, meditation content, ambient background |
| Mechanical | Vintage typewriter keys clicking rhythmically, with the carriage return bell every 8-10 keystrokes | Retro content, writing tutorials, podcast intros |
| Impact | Glass bottle breaking on concrete pavement, recorded close up with natural reverb | Drama, action content, advertising |
| Organic | Sizzling bacon in a hot cast iron pan, first 15 seconds from cold, building to full sizzle | Food content, ASMR, cooking video production |
| Atmospheric | Heavy rain on a corrugated metal roof with occasional distant thunder, no wind | Cinematic, sleep content, background ambience |
| Game/Action | Futuristic plasma rifle charging up and firing with a high-pitched energy discharge | Sci-fi game audio, YouTube intros, action content |
| Horror | Slow wooden door creaking open in a silent empty corridor, with faint echo | Horror content, dramatic reveals, Halloween |
| Comedy | Cartoon slide whistle effect descending with a comedic ‘boing’ at the end | Comedy content, fail compilations, meme soundboards |
Duration and Looping
SFX V2 supports clips up to 30 seconds in length — a significant expansion from typical one-shot sound effect generators that produce 2-5 second clips. The duration can be set explicitly or left to the model to determine from the prompt. For ambient and environmental content, longer clips with seamless looping are the appropriate format.
Seamless looping: generated clips can be set to loop without audible seams, making them appropriate for background ambient environments in video, game audio, and streaming overlays. An ambient coffee shop soundscape, forest environment, or office background noise can be generated as a 30-second looping clip that runs continuously without repetition becoming noticeable.
Related: For AI music generation with looping support, see ElevenLabs Eleven Music guide
SB1: The Infinite AI Soundboard
SB1 is ElevenLabs’ soundboard product built on SFX V2 technology. It allows users to create soundboards with unlimited sound buttons — each button assigned to a generated or uploaded sound effect — accessible through the ElevenLabs Sound Effects dashboard. Buttons can be named, categorised, and triggered via keyboard hotkeys, making SB1 usable for real-time Discord, streaming, and live event sound triggering.
SB1 vs Traditional Soundboards
| Dimension | SB1 (ElevenLabs) | Voicemod Soundboard | Resanance |
| Sound library | Unlimited AI-generated, fully custom | Pre-built meme library + custom import | Custom import only (no library) |
| Uniqueness | Every sound is original and unique | Shared meme library — same sounds as all users | Depends on your imported files |
| Generation method | Text-to-sound via SFX V2 | Pre-recorded + import | Import only |
| Audio quality | 48kHz professional grade | Variable — depends on source files | Depends on source |
| Latency | Browser-based — not real-time hotkey | Real-time hotkey via Windows driver | Real-time hotkey via virtual cable |
| Cost | Included in ElevenLabs paid plan | Free tier + $45/yr Pro | Free |
| Commercial licensing | Yes — paid plans | Pro plan includes commercial | N/A — your own audio |
The key differentiator for SB1 is that every sound in the soundboard is generated from text and is completely unique — no one else has your specific version of ‘ominous villain entrance music’ or ‘crowd cheering for a small achievement.’ For streamers and content creators who want a soundboard identity that cannot be replicated by other users running the same Voicemod library, SB1 provides genuinely original content.
Creator Workflow: Replacing Your Stock Sound Library
Step 1: Audit your current sound needs
List every type of sound effect you use regularly — intro stings, transition sounds, reaction effects, ambient backgrounds, notification sounds, error sounds. These are your generation targets.
Step 2: Write prompts for each
Write detailed prompts for each sound type following the source-environment-character format. Generate 3-5 variations of each and select the best. Download and save to a dedicated project folder.
Step 3: Build your SB1 soundboard
Import your generated sounds into SB1, assign hotkey triggers, and name each button clearly. Organise by category — reactions, transitions, backgrounds, intros — so you can navigate quickly during live use.
Step 4: Integrate into your production setup
For streaming: route SB1 audio through your streaming software (OBS, Streamlabs) as an audio source. For video production: download generated SFX as MP3 or WAV files and import directly into your editing timeline (Premiere Pro, DaVinci Resolve, Final Cut). For Discord: configure SB1 audio output as your microphone input in Discord settings.
API Access for Developers
SFX V2 is fully accessible via the ElevenLabs API, allowing developers to integrate text-to-sound-effects generation into applications, games, and automated workflows. API parameters include: text (the prompt), duration_seconds (optional, up to 30), prompt_influence (guidance level 0-1), and output format (MP3 44100, MP3 22050, PCM 16000, PCM 22050, PCM 24000, PCM 44100, or ulaw 8000 for telephony).
Use cases for API-integrated SFX V2 include: game engines that generate contextually appropriate sound effects from game state descriptions, podcast production tools that auto-generate transition and background audio from episode content analysis, and video platforms that generate ambient soundscapes matching uploaded video content.
Three Insights Most SFX V2 Guides Miss
1. 48kHz Quality Changes the Professional Viability
Most AI sound effect generators output at 22kHz or 44.1kHz — adequate for web content but below the 48kHz standard required for broadcast, film post-production, and professional game audio. SFX V2’s 48kHz output means generated sound effects can be used directly in professional production pipelines without the quality compromise of upsampling from a lower-rate source. For creators working on commercial projects where audio quality is subject to client review, this specification matters practically.
2. The Guidance Control Is the Most Underused Feature
SFX V2’s guidance parameter controls how closely the model adheres to the prompt versus exploring creative variations. Most users leave this at the default setting. In practice, setting guidance lower (0.3-0.5) produces more unexpected, creative interpretations that often result in more interesting and less generic-sounding effects than strictly following the prompt. For sound design exploration rather than specific asset generation, low guidance with varied prompts produces the most interesting results per generation session.
3. Looping Ambient Sounds Are the Highest-Value Use Case Most Creators Ignore
The majority of SFX V2 tutorials and guides focus on one-shot sound effects — impacts, transitions, reactions. The highest-value use case for most content creators is generating looping ambient soundscapes. A 30-second looping ambient track generated from ‘busy coffee shop with espresso machine and quiet conversation’ replaces a stock library subscription for background sound in talking-head videos, podcast intros, and vlog content — with the advantage of complete uniqueness and no attribution requirement on paid plans.
Pricing and Plan Requirements
| Plan | SFX Access | Commercial Use | API Access | SB1 Access |
| Free | Yes — limited generation | No — attribution required | No | Yes — limited buttons |
| Starter ($5/mo) | Yes — full generation | Yes | No | Yes |
| Creator ($22/mo) | Yes — full generation | Yes | Yes — limited | Yes — unlimited buttons |
| Pro ($99/mo) | Yes — full generation | Yes | Yes — full access | Yes — unlimited buttons |
| Scale ($330/mo) | Yes — full generation | Yes | Yes — full access | Yes — unlimited buttons |
Related: Full ElevenLabs pricing guide — all plan features and credit limits for 2026
Key Takeaways
- SFX V2 generates custom sound effects from text at 48kHz professional quality — up to 30 seconds with seamless looping. Paid plans include commercial use rights without attribution.
- Strong prompts include source, environment, and acoustic character. The guidance parameter controls creative interpretation versus prompt adherence.
- SB1 infinite soundboard builds unlimited custom sound buttons from generated SFX — every sound unique, no shared meme library.
- 48kHz output is the key professional differentiator — appropriate for broadcast, film post-production, and game audio pipelines.
- The highest-value use case most creators ignore: 30-second looping ambient soundscapes as background audio for video and podcast content.
Conclusion
ElevenLabs SFX V2 and SB1 together form the most capable AI sound design system available to independent creators in 2026. The 48kHz professional output quality, 30-second clip duration, seamless looping, and commercial licensing make SFX V2 a viable replacement for royalty-free stock sound libraries. SB1’s unlimited custom soundboard adds real-time triggering capability for streamers and live content creators who want a completely unique audio identity. The combination is available to all paid ElevenLabs subscribers — making it accessible to anyone already using the platform for voice narration without additional subscription cost. Start with generating looping ambient sounds for your next video — that single use case alone demonstrates the value within 10 minutes of your first generation session.
Frequently Asked Questions
What is ElevenLabs SFX V2?
SFX V2 is ElevenLabs’ text-to-sound-effects model that generates custom audio from natural language descriptions at 48kHz professional quality. Clips can be up to 30 seconds long and support seamless looping. Available through the ElevenLabs dashboard and API.
Can I use ElevenLabs sound effects commercially?
Yes — paid plan subscribers (Starter and above) can use generated sound effects in commercial projects including YouTube videos, social media, advertising, and commercial audio without attribution requirements. Free plan users have more restricted commercial use.
What is SB1 soundboard?
SB1 is ElevenLabs’ infinite AI soundboard built on SFX V2 technology. It allows users to create soundboards with unlimited custom sound buttons — each generated from text descriptions — for real-time use in Discord, streaming, live events, and content production.
How long can ElevenLabs sound effects be?
Up to 30 seconds per clip. Duration can be set explicitly or left to the model to determine from the prompt context. Seamless looping is supported for ambient and background audio use cases.
What audio quality does ElevenLabs SFX V2 produce?
48kHz — the professional standard used in film post-production, broadcast, and game audio. Multiple output formats are available including MP3 (44100Hz, 22050Hz) and PCM (16000, 22050, 24000, 44100Hz).
Methodology
SFX V2 technical specifications from ElevenLabs official Sound Effects documentation and Scenario’s SFX V2 integration guide (December 2025). SB1 soundboard features from ElevenLabs Sound Effects page (elevenlabs.io/sound-effects). Competitor comparison from Voicemod and Resanance official documentation (April 2026). API specifications from ElevenLabs developer documentation. This article was drafted with AI assistance and reviewed by the editorial team at ElevenLabsMagazine.com.
References
ElevenLabs. (2026). Sound Effects. https://elevenlabs.io/sound-effects
Scenario. (December 2025). ElevenLabs Sound Effects V2: AI-powered sound design from text. https://help.scenario.com/en/articles/elevenlabs-sound-effects-sfx-the-essentials/
ElevenLabs. (2026). API documentation — Sound Generation. https://elevenlabs.io/docs/api-reference/sound-generation
