What is the specific meaning of -- prefix-mode ? I learned "0: no prefix, 1: 0 to random, 2: random to random, 4: chunk of pre or post utterance." But I couldn't understand what it meant.
And does it have to be set the same when train and infer?
When I train ar, can I choose 0, 1, 2, 4? When I train nar, can I choose 0, 1, 2, 4? Must train ar and nar select the same value?
thanks much !