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Portaspeech VPFLow问题 #33

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MarsMeng1994 opened this issue Sep 4, 2023 · 0 comments
Open

Portaspeech VPFLow问题 #33

MarsMeng1994 opened this issue Sep 4, 2023 · 0 comments

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@MarsMeng1994
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MarsMeng1994 commented Sep 4, 2023 •
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https://github.com/NATSpeech/NATSpeech/blob/main/modules/tts/portaspeech/fvae.py#L120
我的理解是：
这个loss是计算VAE生成的zq在VAE生成的分布q_dist中的概率，和通过prior_flow转换zq生成的zp在正态分布中的概率，之间的KL距离更小。如果KL距离很小，说明VPFlow转换的分布和VAE的分布相近。

但是怎么证明VPFlow转换的zp是正态分布呢？是不是还应该保证logpx和logqx足够高呢？
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@MarsMeng1994