Phase 4: Audio & Music Generation · 45 min · Python · Stable Audio Open · ElevenLabs API

Sound Design & SFX Generation

Foley, ambient sound, SFX — the audio layer that makes generated video feel real.

Hiring signal: SFX generation and integration with video pipelines is a practical skill that demonstrates you can build complete multi-modal pipelines, not just individual modality generators.

What you will learn

Generate SFX with Stable Audio Open (11-47 second SFX generation)
Generate foley and ambient sound for video
Understand when to use generated SFX vs sound effect libraries
Integrate SFX generation into video generation pipelines

The Problem

A team generates a video of a rainstorm with Sora. The video looks realistic, but it's completely silent. They add background music, but the video still feels flat — there's no sound of rain hitting the ground, no thunder, no wind. The missing piece is SFX: sound effects that match the visual content. Without SFX, even high-quality AI video feels unnatural.

SFX generation and integration with video pipelines is a practical skill that demonstrates you can build complete multi-modal pipelines.

What you'll build
Generate SFX with Stable Audio Open and ElevenLabs SFX API. Create foley and ambient sound for video. Integrate SFX generation into a video generation pipeline so that generated videos come with matching audio.

SFX vs Music vs Foley

Category	Description	Examples	Tools
SFX	Discrete sound effects	Door slam, glass break, explosion	Stable Audio, ElevenLabs SFX
Foley	Everyday environmental sounds	Footsteps, clothing rustle, keys	Stable Audio Open
Ambient	Continuous background atmosphere	Rain, traffic, forest, wind	Stable Audio Open
Music	Structured songs/instrumentals	Background music, theme songs	Suno, Stable Audio

Unlock the full lesson

You've read the first 2 sections. The rest of this lesson covers Stable Audio Open for SFX, ElevenLabs SFX API, Foley Generation, Ambient Sound Generation, Video + SFX Integration Pipeline, Generated SFX vs Sound Libraries, Key Takeaways, What's Next — plus a hands-on lab, quiz, and project artifact.

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