ColainCYY

> Can you print out the output of `py_utils.GetShape(inputs)` and `inputs`? > … while initiating the graph，py_utils.GetShape(inputs) get a result as below： `Tensor("fprop/librispeech/tower_0_0/enc/Shape_6:0", shape=(?,), dtype=int32)` It is actually “tf.shape(inputs)”，the dimention...

Thanks very much! and should I remain 'stack_height' as '3'?