Introducing WaveSpeedAI MMAudio V2 on WaveSpeedAI

Introducing MMAudio V2: Bring Your Videos to Life with AI-Generated Audio

Silent videos are about to become a thing of the past. We’re thrilled to announce that MMAudio V2 is now available on WaveSpeedAI, delivering state-of-the-art synchronized audio generation from video and text inputs. Whether you’re a filmmaker looking to streamline post-production, a content creator seeking professional soundtracks, or a developer building the next generation of multimedia applications, MMAudio V2 transforms the way audio meets visuals.

What is MMAudio V2?

MMAudio V2 is a cutting-edge video-to-audio synthesis model developed through a collaboration between researchers at the University of Illinois Urbana-Champaign, Sony AI, and Sony Group Corporation. Presented at CVPR 2025—one of the world’s premier computer vision conferences—this model represents the current state-of-the-art in video-to-audio generation among publicly available models.

What sets MMAudio V2 apart is its innovative multimodal joint training approach. Unlike traditional models trained solely on limited video-audio pairs, MMAudio V2 leverages large-scale text-audio datasets alongside video content. This joint training creates a unified semantic space, enabling the model to generate audio that’s not only high-quality but deeply integrated with your video’s contextual elements.

The results speak for themselves: MMAudio V2 generates 8 seconds of synchronized audio in just 1.23 seconds, all while maintaining exceptional quality with only 157 million parameters—significantly smaller and faster than competing models that require 600+ million parameters.

Key Features

High-Fidelity Audio at 44.1kHz: Crystal-clear audio output that matches professional production standards, ensuring your content sounds as good as it looks.
Precise Temporal Synchronization: Humans can perceive audio-visual misalignment as slight as 25 milliseconds. MMAudio V2’s conditional synchronization module aligns audio with video frames at this granular level, creating seamless audiovisual experiences.
Multimodal Input Support: Generate audio from video alone, text descriptions, or combine both for maximum creative control. You can even experiment with image-to-audio synthesis.
Context-Aware Sound Generation: The model analyzes visual scenes, actions, and environments to produce appropriate soundscapes—from ambient nature sounds to action-driven effects.
Blazing-Fast Inference: Generate 8 seconds of audio in approximately 1.23 seconds, enabling rapid iteration and real-time workflows.
Lightweight Architecture: With just 157M parameters and approximately 6GB of GPU memory required, MMAudio V2 delivers enterprise-grade results without enterprise-level infrastructure demands.

Real-World Use Cases

Film and Video Post-Production

Post-production teams can generate base ambient sounds and preliminary effects in minutes rather than hours. MMAudio V2 understands cinematic context, producing appropriate soundscapes that match every scene. Independent filmmakers with limited budgets can create professional-quality audio without expensive sound design resources.

Content Creation

Whether you’re producing for YouTube, TikTok, or educational platforms, MMAudio V2 eliminates the tedious process of hunting through royalty-free sound libraries. Upload your video, optionally add a text prompt for creative direction, and receive a professional audio track ready for publication.

Silent Film Restoration

Breathe new life into archival footage. MMAudio V2 can add historically appropriate background sounds to vintage content—street corner bustle, period-accurate machinery, ambient environments—transforming silent history into immersive experiences.

Gaming and VR Development

Game developers can produce dynamic sound effects that respond to visual interactions, boosting player immersion without manually crafting thousands of audio assets.

Accessibility Enhancement

Add audio descriptions and soundscapes to visual content, making videos more accessible to broader audiences and meeting modern accessibility standards.

Getting Started with MMAudio V2 on WaveSpeedAI

Getting started takes just minutes. WaveSpeedAI provides MMAudio V2 through a ready-to-use REST API, eliminating the complexity of model deployment and infrastructure management.

Step 1: Visit wavespeed.ai/models/wavespeed-ai/mmaudio-v2 and sign up for an API key if you haven’t already.

Step 2: Upload your video or provide a text prompt describing the audio you want to generate.

Step 3: Receive synchronized, high-quality audio output ready for integration into your project.

WaveSpeedAI’s implementation delivers several key advantages:

No Cold Starts: Your requests process immediately without waiting for model initialization.
Best-in-Class Performance: Optimized infrastructure ensures you get results fast.
Affordable Pricing: Pay only for what you use, with transparent pricing that scales with your needs.
Simple Integration: Clean REST API that integrates with any programming language or workflow.

Why Choose WaveSpeedAI for MMAudio V2?

Running AI models in production presents significant infrastructure challenges. WaveSpeedAI handles the complexity so you can focus on building. Our platform provides enterprise-grade reliability with startup-friendly pricing, ensuring that whether you’re processing ten videos or ten thousand, you get consistent, fast results.

The combination of MMAudio V2’s state-of-the-art audio synthesis and WaveSpeedAI’s optimized inference infrastructure means you’re getting the best possible audio generation experience available today.

Transform Your Videos Today

The gap between amateur and professional content often comes down to audio quality. MMAudio V2 on WaveSpeedAI closes that gap, giving everyone access to AI-powered audio synthesis that was previously only possible with significant resources and expertise.

Ready to bring your videos to life? Visit wavespeed.ai/models/wavespeed-ai/mmaudio-v2 to start generating synchronized audio from your videos and text prompts today. With WaveSpeedAI’s no-cold-start infrastructure and affordable pricing, professional audio is just an API call away.