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Building an Infinite Soundboard with the ElevenLabs SFX API

·2026.04.10 14:58

Key point

ElevenLabs used the SFX API to build SB1, an infinite soundboard that generates any desired sound on the fly from text alone.

Details

ElevenLabs unveiled SB1, an infinite soundboard that can generate unlimited sound effects from text descriptions. Unlike traditional static MP3 libraries, it uses the ElevenLabs SFX API to generate the sounds users want on the fly.

Early in development, the team used Lovable to build a prototype for experimenting with design and button layout, while the final UI and code were built on React and Tailwind CSS.

The core features of SB1 are as follows:

  • Custom Mode: When a user enters a prompt, the API provides 4 sound variation options, one of which can be selected and assigned to a pad.
  • Ease of Control: Keyboard bindings allow real-time playback of rhythms or sound cues, with support for a Looping feature.
  • Versatile Uses: It can be used for a wide range of purposes, including ambient soundscapes, drum machines, and generating short voice snippets featuring character voices.

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