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Accelerate mfcc computation for DS2. #189

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merged 1 commit into from
Aug 8, 2017
Merged

Accelerate mfcc computation for DS2. #189

merged 1 commit into from
Aug 8, 2017

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xinghai-sun
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  1. Put np.transpose on small tensor instead of larger tensor.
  2. Use np.concatenate directly on ndarray instead of converting it to list and back to ndarray again.

Speedup by 2x for MFCC computation.

@xinghai-sun xinghai-sun requested review from kuke and pkuyym August 8, 2017 07:52
kuke
kuke approved these changes Aug 8, 2017
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LGTM

@xinghai-sun xinghai-sun merged commit d504e42 into PaddlePaddle:develop Aug 8, 2017
@xinghai-sun xinghai-sun deleted the mfcc_update branch August 8, 2017 08:00
@kuke kuke mentioned this pull request Aug 9, 2017
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@kuke kuke kuke approved these changes

@pkuyym pkuyym Awaiting requested review from pkuyym

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@xinghai-sun @kuke