bug in get_hi-mia_data.py
In the script of downloading `get_hi-mia_data.py` there is a small bug. I think line  `l.output.write_wav(line, y, sr)` in `__process_data ` needs to be changed by `sf.write(line, data=y, samplerate=sr)`.
By the way when we run this script we will get three folders:

1. dev
> dev.jason including : 16464 samples, dev_all.json: 164640 samples and train.json: 148176 samples

2. test
> test_all.sjon uncluding 165120 samples. When you check the number of labels we will find 13620 labels. How that? How they are related to speakers, or more precisely to 44 speakers?
3. train
> dev with 99309 samples, train: 893774 and train_all:993083 samples

To the best of my knowledge, the number of speakers in dev is 42, in test 44 and in train in 254 (correct me if  I am wrong, please) and each speaker records 160 discours. So, for example, 42*160 != 164640. or you mean the sum of the 160 for each speaker are decomposed, and the sum of discours for all the speakers =  164640.

Indeed, which one of dev, test, train can we use for just train a model and generate the labels for speaker identification.? can I use only dev since it containes dev.json, train.json and the sum of their samples is 16464+148176=164640 samples? 