Solution for audio and character binding errors
MultiTalk uses the innovative L-RoPE (Label Rotation Position Embedding) technology to specifically cope with the problem of binding multiplexed audio to roles:
- Technical Principles: L-RoPE assigns the same label to each audio stream and the corresponding reference image, and establishes a strong correlation in the feature space by rotating the matrix.
- procedure::
- Ensure that each WAV audio filename has the same prefix as its corresponding role's reference image filename (e.g., alice_voice.wav vs. alice_image.png)
- Explicitly label the role index corresponding to each audio in the input_json configuration file
- Enable full L-RoPE functionality by adding the -use_label parameter when starting generation
- Options: When a binding error still occurs, the
- Decrease -teacache_thresh value to below 0.3 to enhance binding accuracy
- Add role identifiers to the text prompt such as [Alice]: [Bob].
- Pre-processing of audio to ensure that the isolation of each channel ≥ 15dB
Tests show that the binding accuracy can reach 98.7% after using the above method, which is much higher than the traditional method based on timing alignment
This answer comes from the articleMultiTalk: an audio-driven tool for generating videos of multiplayer conversationsThe
May not be reproduced without permission:AI productivity tools " How to solve the problem that audio is incorrectly bound to characters when MultiTalk generates videos of multiplayer conversations?
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