音画不同步是AI视频的另一大顽疾。Seedance 2.0利用其底层的Seed 2.0大模型，通过一种被称为“双分支扩散变换器”的架构，实现了原生视频与音频（包括对白、音效、环境声）在同一生成过程中的精确同步。
Testing told me I used ~3,500 bytes for each frame - at 10 FPS, that’s ~35 KB/sec. While a nice T1 line could handle that, it’d easily saturate a 56k modem. And supporting even 1,000 clients would mean pushing 35 megabytes a second - way too much!
。关于这个话题，safew官方下载提供了深入分析
curl "https://generativelanguage.googleapis.com/v1beta/files?key=$API_KEY"
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