java - Multithread CMU Sphinx 4 Alignment -

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i using cmu sphinx 4 align audio transcript. process has automated, i've tweaked alignerdemo exampled , compiled .jar execute terminal (ubuntu 15.04, 8gb, i5 quad).

speed critical, when run aligner on large audio file, notice process runs on single thread. sphinx 4 wiki claims multithreaded, need manually enable? if so, how?

for comparison, here screenshots of system monitor when running .jar (top) vs running ffmpeg (bottom), multithreaded.

cmu sphinx 4 aligner ffmpeg video conversion


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