FUNCTION OF BUCKET ITERATOR
RVT123123 opened this issue · comments
I want to know what is the main function of bucket iterator and what are parameters and return value.
In this project, we have used human speech signals for detecting the emotions. Now since these voice samples can vary in time, we need to convert them to a common shape that requires padding (neural networks require data in a fixed shape for training).
Either whole data can be padded altogether or batch-wise, the later one is more memory efficient and we have used Bucket Iterator for the same.
Bucket Iterator takes the batch size as the parameter and returns a random padded batch of data including both input and its corresponding label.
I want to know what is the main function of 'Mel.py' , Just want to show the difference between FBANK and MFCC?
Yes, it is just for reference and understanding Mel.
when i copy your ‘class BucketedDataIterator（）：’
I don't know where the problem is. Can you help me?
Traceback (most recent call last):
File "D:/Project/pycharm/RNN/create_mfcc.py", line 164, in
mini_batch = tr.next_batch(128)
File "D:/Project/pycharm/RNN/create_mfcc.py", line 160, in next_batch
x_i[:res['lengths'].values[i]] = res['MFCC'].values[i]
TypeError: slice indices must be integers or None or have an index method
my file like this：
........................................................... MFCC ........................................... lengths
0 [[-10.494777560823318, 19.205118287686812, 16.... ... 1099.0
1 [[-11.632857909892738, 5.8760442872698695, 29.... ... 1099.0
2 [[-8.773702814090234, -12.86215112148708, -7.2... ... 299.0
3 [[-8.411895008114222, -1.9307392294278005, -7.... ... 299.0
4 [[-6.969186995608002, -17.02179303376442, -23.... ... 299.0