Can I get timestamp info by GPU inference?

[JaheimLee]

I found timestamp info from here . But it's only for cpu. Is it possible to get timestamp from GPU inference? For example by using your docker server

[robin1001]

@yuekaizhang is it possible?

[yuekaizhang]

@yuekaizhang is it possible?

Yes, it's possible to add timestamp. Currently gpu inference using this ctc_decoder, which needs to modify to add timestamps. Or we could replace it with https://pytorch.org/audio/main/models.decoder.html, which has already supported timestamps.

I could implement it next week.

@Mddct would wenet python bindings give an python API for ctc_prefix_beam_search?

[Mddct]

@yuekaizhang is it possible?

Yes, it's possible to add timestamp. Currently gpu inference using this ctc_decoder, which needs to modify to add timestamps. Or we could replace it with https://pytorch.org/audio/main/models.decoder.html, which has already supported timestamps.

I could implement it next week.

@Mddct would wenet python bindings give an python API for ctc_prefix_beam_search?

@yuekaizhang python binding is for the convenience of using wenet。If we can binding wenet ctc prefix search in other repo to replace ctcdecoder？I've implemented a stateless binding before which maybe helpful https://github.com/Mddct/losses/blob/main/src/ctc_decoder.h

But If we introduce this api will complicate binding

@robin1001

[robin1001]

Binding is just for CPU and it is too heavy for the task. I prefer to use torchaudio built-in decoder.

[pengzhendong]

@yuekaizhang Plz note this issue: https://github.com/parlance/ctcdecode/issues/148

[xingchensong]

seems solved， close this issue