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Meta AI Releases Meta Spirit LM: An Open Source Multimodal Language Model Mixing Text and Speech

Meta AI Releases Meta Spirit LM: An Open Source Multimodal Language Model Mixing Text and Speech

Challenges in Text-to-Speech Systems

Creating advanced text-to-speech (TTS) systems faces a major issue: lack of expressiveness. Conventional methods use automatic speech recognition (ASR) to convert speech to text, process it with large language models (LLMs), and then convert it back to speech. This often results in a flat and unnatural sound, failing to convey emotions like excitement or anger.

Introducing Meta Spirit LM

Meta AI has launched Meta Spirit LM, an open-source multimodal language model that mixes text and speech effectively. This model improves TTS systems by integrating text and speech at the word level, capturing the emotional nuances of spoken language while retaining strong semantic capabilities.

Two Versions for Different Needs

Meta Spirit LM offers two versions:

  • Spirit LM Base: Uses phonetic tokens for efficient speech representation.
  • Spirit LM Expressive: Adds pitch and style tokens to create expressive speech that reflects emotions.

Innovative Training Method

The model uses a unique word-level interleaving method, training on both text and speech datasets. This allows it to smoothly transition between modalities, generating more natural speech. It also supports few-shot learning, making it versatile for tasks like ASR, TTS, and speech classification.

Enhanced Multimodal Experience

Meta Spirit LM significantly enhances the multimodal AI experience. The Expressive version retains emotional intent, producing outputs that are more natural and emotive compared to traditional models. Evaluation results show its effectiveness in preserving sentiment across different modalities.

Practical Applications

This model can be used for:

  • Expressive storytelling
  • Emotion-driven virtual assistants
  • Enhanced interactive dialogue systems

Open-Source and Community Engagement

Meta Spirit LM’s open-source nature encourages the research community to explore its capabilities further. It marks a significant advancement in conversational agents and accessible communication tools, especially for those with disabilities.

Get Involved and Learn More

Explore the GitHub repository for more details. Follow us on Twitter, join our Telegram Channel, and connect with us on LinkedIn. If you appreciate our work, subscribe to our newsletter and join our 50k+ ML SubReddit.

Upcoming Live Webinar

Join us on Oct 29, 2024 for a webinar on the best platform for serving fine-tuned models: the Predibase Inference Engine.

Embrace AI for Business Growth

To stay competitive, consider how Meta Spirit LM can transform your business:

  • Identify Automation Opportunities: Find key customer interactions that can benefit from AI.
  • Define KPIs: Ensure measurable impacts from your AI initiatives.
  • Select an AI Solution: Choose tools that fit your needs.
  • Implement Gradually: Start with pilot projects and expand based on data.

For AI KPI management advice, contact us at hello@itinai.com. Stay updated on AI insights via Telegram or Twitter.

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