mfcc¶
-
aligner.features.processing.
mfcc
(mfcc_directory, num_jobs, feature_config, frequency_configs)[source]¶ Multiprocessing function that converts wav files into MFCCs
See http://kaldi-asr.org/doc/feat.html and http://kaldi-asr.org/doc/compute-mfcc-feats_8cc.html for more details on how MFCCs are computed.
Also see https://github.com/kaldi-asr/kaldi/blob/master/egs/wsj/s5/steps/make_mfcc.sh for the bash script this function was based on.
Parameters: - mfcc_directory : str
Directory to save MFCC feature matrices
- log_directory : str
Directory to store log files
- num_jobs : int
The number of processes to use in calculation
- mfcc_configs : list of
MfccConfig
Configuration object for generating MFCCs
Raises: - CorpusError
If the files per speaker exceeds the number of files that are allowed to be open on the computer (for Unix-based systems)