训练超参数相关问题

[jwang1993]

关于训练有几个问题想请教一下，
1、在预训练和微调阶段，SpecAugment Policy 是LibriSpeech Basic是什么含义呢
2、在预训练阶段，单独设置了Audio encoder learning rate decay为0.95，这是只针对audio encoder的还是预训练阶段所有可训练参数（audio encoder+adapter）呢
3、在预训练阶段采用多少台机器，总共训练了多长时间

[SaraAlthubaiti]

Could you please point me to their training code? I didn't find it and there was no description about it in the README, @jwang1993