Hi,
We have double checked this issue and TensorRT do generate the correct 78x1x246 output without any issue.
Could you check it again?
$ /usr/src/tensorrt/bin/trtexec --onnx=crnn.onnx --dumpOutput
…
[11/06/2020-11:02:22] [I] median: 19.316 ms
[11/06/2020-11:02:22] [I] percentile: 19.3729 ms at 99%
[11/06/2020-11:02:22] [I] total compute time: 3.03206 s
[11/06/2020-11:02:22] [I] Output Tensors:
[11/06/2020-11:02:22] [I] output0: (78x1x246)
Thanks.