Various pieces of code and experimental results for running DARPACCU experiments.
Code
code/singlechannel.sh - takes Kaldi style data in for 8-channel AISHELL4 data and creates 8 single channels and merges them all together to
code/avgchannel.sh - takes Kaldi style data in for 8-channel AISHELL4 data and creates one channel by summation to
code/onechannel.sh - takes Kaldi style data in for 8-channel AISHELL4 data and extracts to
Experiments
In one set of experiments, we trained a full GALE model in Kaldi using the mandarin_bn_bc recipe and used this to decode AISHELL4 data. We did not attempt to adapt the AM or LM to AISHELL4 data.
Here are the results
| Experiments | CER: |
|---|---|
| All 8 | 72.8 |
| Average | 74.2 |
| Channel 1 | 72.6 |
| Channel 2 | 72.7 |
| Channel 3 | 72.7 |
| Channel 4 | 72.8 |
| Channel 5 | 73.0 |
| Channel 6 | 72.8 |
| Channel 7 | 73.0 |
| Channel 8 | 72.8 |