LDA+MLLT transforms

[Víctor Rosillo]

Hello,

I applied a LDA+MLLT transformation on top of tri-phone acoustic model. Also a delta+delta,delta. But at difference of delta transforms where I get 39 features, I do not which is the number of parameters of LDA+MLLT transformation. I looked into different log files, but I didn't find anything. Anyone know where I can find it??

Thanks

[Daniel Povey]

The number of parameters in the LDA+MLLT matrix depends on the input feature dimension, the amount of splicing and the output dimension.  A typical configuration has 13-dimension input, -3..3 splicing and 40-dimensional output, so the number of parameters would be (13 * 7 + 1) * 40.  [the + 1 is for the bias term, which subtracts the mean, IIRC]

Dan

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