I want to increase the resolution of the output images. I want to implement the progressive growing of GANs approach with a pre-trained model, but, it is complicated since the pre-trained model contains (2 encoders "one for faces and one for voice", decoder, and a discriminator).

How should I update the actual architecture/code to reach my goal?

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PS: I saw medium posts about this topic but it isn't the case cuz they are creating their generator/discriminator from scratch.