Bernini-R-S2V

ComfyUI Bernini-R-S2V custom node v2 (update)

Bernini S2V Conditioning v2 - Bernini in-context video/image conditioning with masked lip-sync for one or two speakers.

Unzip ComfyUI-WanBerniniS2V_v2.zip into ComfyUI/custom_nodes/, then restart ComfyUI.

or save the Python files in: ComfyUI/custom_nodes/ComfyUI-WanBerniniS2V_v2/

Disable or remove the older ComfyUI-WanBerniniS2V folder if you only want v2.

One speaker

• audio_1 + mask_1
• Leave audio_2 / mask_2 unwired

Two speakers (dialog)

• audio_1 + mask_1 - first speaker
• audio_2 + mask_2 - second speaker
• speaker_2_start_frame = -1 - second audio starts when the first clip ends

Masks

Paint on the output frame where each speaker's face appears. Masks control lip-sync placement only, they are not tied to reference_image_N slots.

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Speech-driven video on Bernini-R , T2V, I2V, and V2V with lip-sync.

This model adds single-speaker audio support to Bernini-R, so you can drive video with speech in text-to-video, image-to-video, and video-to-video setups. It is not state-of-the-art audio-to-video, but it removes the need for post-processing or extra models just to add speech to Wan videos. For basic talking-head work, or longer videos built from short sequences, it is a handy all-in-one option on top of Bernini's motion and editing strengths.

File	Role
'wan2.2_bernini_r_high_noise_fp16_s2v.safetensors'	High noise
'wan2.2_bernini_r_low_noise_fp16_s2v.safetensors'	Low noise
'wan2.2_bernini_r_high_noise_fp8_scaled_s2v.safetensors'	High noise
'wan2.2_bernini_r_low_noise_fp8_scaled_s2v.safetensors'	Low noise
'wan2.2_bernini_r_high_noise_int8_convrot_s2v.safetensors'	High noise
'wan2.2_bernini_r_low_noise_int8_convrot_s2v.safetensors'	Low noise

ComfyUI detects these as WAN22_S2V / 'WanModel_S2V' (audio keys trigger S2V model type).

Usage

1. Download the checkpoints.
2. Place in:

   ComfyUI/models/diffusion_models/
   

3. Add wav2vec2 to:

   ComfyUI/models/audio_encoders/
   

4. Install ComfyUI-WanBerniniS2V custom node:

   (Create a folder in 'ComfyUI/custom_nodes/'  named 'ComfyUI-WanBerniniS2V', then save the Python files in that folder.)
   

5. Restart ComfyUI.
6. Search for the Bernini S2V Conditioning node or use the example workfllow

Audio tips

Setting	Recommendation
Channels	Mono, wav2vec2 downmixes stereo internally
Sample rate	44.1 khz or 48 khz (resampled to 16 kHz)
Content	Clear speech, less background music = better sync
Length	in my testing, max 9 to 15 seconds