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How to use timesteps? #203

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blankspark opened this issue Mar 28, 2022 · 1 comment
Open

How to use timesteps? #203

blankspark opened this issue Mar 28, 2022 · 1 comment

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@blankspark
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blankspark commented Mar 28, 2022 •
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I have noticed the output of ctcdecode includes timesteps, which the description says it can be used as alignment.
But I just get shape (Batchsize，N_beams，N_timesteps). I don't know how to use it.

timesteps - Shape: BATCHSIZE x N_BEAMS

The timestep at which the nth output character has peak probability. Can be used as alignment between the audio and the transcript.

Thanks in advance.
@abarcovschi
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@blankspark have you ever figured out how to use them? I am looking to get word-level time alignments, but I don't know how to calculate this information from the timesteps returned by ctcdecode.

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@abarcovschi @blankspark