Gaussian Mixture Selection Top 20

Gaussian Mixture Selection

Quick Tip:

1) Reason: Save time

2) How:

For a test utterance feature, say, MFCC,

for each frame of MFCC, we have a set of mixtures

for another frame, we may have a different set of mixure components

In most case, top 20 is enough for an UBM with 1024 mixture.