aishell1 is incompletely executed

[kaiAksenov]

Hello, please ask the following this contains all the code related to e2e lfmmi, which feels missing when executing (e.g., lfmmi criterion)

[jctian98]

Hi. All the code is released in this repo. The LFMMI criterion is here: https://github.com/jctian98/e2e_lfmmi/blob/master/snowfall/warpper/warpper_mmi.py
Please tell me if you feel other things are missing.

[kaiAksenov]

Hi. All the code is released in this repo. The LFMMI criterion is here: https://github.com/jctian98/e2e_lfmmi/blob/master/snowfall/warpper/warpper_mmi.py Please tell me if you feel other things are missing.

For example, you have specified relevant parameters in the nt.sh script, but asr_train.py has no corresponding parameter identifiers

asr_train.py: error: unrecognized arguments: --aux-ctc true --aux-ctc-weight 0.5 --aux-ctc-dropout-rate 0.1 --aux-mmi true --aux-mmi-weight 0.5 --aux-mmi-dropout-rate 0.1 --aux-mmi-type mmi --att-scorer-weight 0.0

In addition, args.use_ddp is used in asr.py called by asr_train.py, but the relevant configuration is not specified accordingly

[jctian98]

Hi, these arguments are defined here. Maybe we need to check this function is called correctly so these arguments are registered in the argument parser.

e2e_lfmmi/nets/pytorch_backend/transducer/arguments.py

Lines 320 to 345 in 34b8056

	group.add_argument(
	"--aux-mmi",
	type=strtobool,
	nargs="?",
	default=False,
	help="Whether to use mmi as auxiliary task.",
	)
	group.add_argument(
	"--aux-mmi-weight",
	default=0.5,
	type=float,
	help="Weight of auxiliary mmi loss",
	)
	group.add_argument(
	"--aux-mmi-dropout-rate",
	default=0.0,
	type=float,
	help="Dropout rate for auxiliary mmi",
	)
	group.add_argument(
	"--aux-mmi-type",
	type=str,
	choices=['mmi', 'phonectc'],
	default='mmi',
	help="LF-MMI or CTC",
	)

DDP is the only way to run this repo even if only one GPU is used. I'm sorry I didn't remove this option.