Re: [Kaldi-developers] Discrete Symbol based acoustic models

[Daniel P. <dp...@gm...>]

Just like discrete HMMs, A* and stack decoders are things that no-one has
used for over a decade.  So, no.  People use Viterbi decoders with
beam-pruning now.
Dan


On Wed, Feb 11, 2015 at 12:42 AM, Himanshu Joshi <hj...@us...> wrote:

> Daniel,
>
>  Thanks for your response. For now, I will try to work with HTK's VQ tool
> and use symbolic inputs.
>
>  One more question: Are you aware of any toolkits that implement the
> A*/Stack Decoder, possibly with a PCFG assisted language model?
>
> Thanks,
> Himanshu
>
> On Tue, Feb 10, 2015 at 3:52 PM, Daniel Povey <dp...@gm...> wrote:
>
>> No, it doesn't.  HTK supports that, but Kaldi doesn't because it's been
>> so long since people used those types of models.
>> Dan
>>
>>
>> On Tue, Feb 10, 2015 at 6:25 PM, Himanshu Joshi <hj...@us...> wrote:
>>
>>>  Does Kaldi support discrete acoustic models (where the acoustic input
>>> is a discrete symbol instead of an 39 dimensional real vector)? I want to
>>> make a Kaldi baseline that works on discrete/symbolic representations of
>>> the speech signal (MFCC filtered Cepstrum) to compare with a cognitive
>>> architecture based speech recognizer that cannot accept real values as
>>> inputs.
>>>
>>> Thanks,
>>> Himanshu
>>>
>>>
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>