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Fix dtype mismatch in AudioVAE.encode for bf16/fp16 audio VAE

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Refuelko 2026-07-06 23:08:30 -07:00 committed by GitHub
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comfy/ldm/lightricks/vae/audio_vae.py
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@ -154,6 +154,10 @@ class AudioVAE(torch.nn.Module):
waveform, waveform_sample_rate, device=waveform.device waveform, waveform_sample_rate, device=waveform.device
) )
# Cast mel spectrogram to match encoder weight dtype (bf16 VAE + float32 audio input)
encoder_dtype = next(self.autoencoder.encoder.parameters()).dtype
mel_spec = mel_spec.to(dtype=encoder_dtype)
latents = self.autoencoder.encode(mel_spec) latents = self.autoencoder.encode(mel_spec)
posterior = DiagonalGaussianDistribution(latents) posterior = DiagonalGaussianDistribution(latents)
latent_mode = posterior.mode() latent_mode = posterior.mode()