VoxForge
VoxForge
I have two wave files (16k, 16bit, raw)
####
a.pcm, b.pcm
####
Their transcriptions are in "in.mlf'
#### in.mlf ####
#!MLF!#
"*/a.lab"
A
.
"*/b.lab"
B
.
############
Then I try
####
> HCopy -C config -I in.mlf -i out.mlf a.pcm + b.pcm out.htk
####
This means I want to make a big file containing both features of a.pcm and b.pcm while the transcriptions are maintained.
So, "out.mlf" is expected like this
#### out.mlf: expected ####
#!MLF!#
"*/out.lab"
00000000 56333124 A
56333124 143733124 B
.
############
However, HCopy yields
#### out.mlf: actual output ####
#!MLF!#
"*/out.lab"
A
143733124 143733124 B
.
############
the config I used is general
#### config ####
SOURCEKIND = WAVEFORM
SOURCEFORMAT = NOHEAD
SOURCERATE = 625
TARGETKIND = MFCC_0_D_A_Z
TARGETRATE = 100000.0
SAVECOMPRESSED = T
SAVEWITHCRC = T
WINDOWSIZE = 250000.0
USEHAMMING = T
PREEMCOEF = 0.97
NUMCHANS = 26
CEPLIFTER = 22
NUMCEPS = 13
ENORMALISE = T
ZMEANSOURCE = T
USEPOWER = T
############
Is it a bug or is it a right result?
Please let me know.
Thank you
Ted
--- (Edited on 2/16/2011 5:06 am [GMT-0600] by Visitor) ---
Hi Ted,
I did not know that you could create mlf files using HCopy...I see from the HCopy help page that it accepts mlf files, but I am pretty sure it cannot not generate time stamps - it might use them somehow, but I have not looked at HCopy in a while...
In the VoxForge tutorial we use a 2 step process to create the MLF file using the HTK perl script "prompts2mlf", and using HCopy to create the feature sets.
I think what you are trying to do is forced alignment, i.e. find the word or phoneme times in your speech input.
I don't think your can do that with HCopy - which just converts from one audio format to another or to feature sets. You need a decoder like HVite or Julius or Sphinx to do 'forced alignment' - see here for more info: Automated Audio Segmentation Using Forced Alignment (Draft).
Ken
--- (Edited on 2/16/2011 1:47 pm [GMT-0500] by kmaclean) ---
Thank you very much!
Your reply is very helpful.
Even though some problems are not solved, I think it will be solved.
I mean I will make a script to merge multi files rather than use HCopy.
Thank you again.
Ted
--- (Edited on 2/17/2011 5:10 pm [GMT+0900] by iimtl) ---