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Table 1 Statistics of the datasets used for training: number of words in the dictionary and amount of speakers and data Dataset Dict.
First, the amount of speakers was reduced to the frontal five to make the task easier.
From the original amount of speakers recorded in the database, a first corpus of 224 speakers was selected according to the criteria found in [ 56] being named henceforward as the original subset.
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These results clearly indicate that the amount of speaker information varies with not only acoustic-phonetic classes but also speakers.
It can be assumed that speech frames have different amount of speaker information according to their acoustic-phonetic classes [13] as well as speaker's voice characteristics.
More specific speaker-dependent adaptation did not improve the results, but this may be due to the limited amount of speaker-specific adaptation data in comparison with the adaptation data used to adapt the speech models to singing in general.
N c can be regarded as a conditioning factor, as the amount of speaker frames observed by the component c increases, M c will get closer to the real statistical mean vectors (1/L F c.
But the interpretations that we considered so far are world states that do not encode different amounts of speaker knowledge.
Moreover, the number of repetitions is less important in news programs than in reports ones, as reported in Table 1, while the transcription error rate is higher on the latter due to a larger amount of nonprofessional speakers.
According to Eq. (4), as the amount of observing speaker frames increases for a Gaussian component, the posterior distribution of mean vectors of that component will get closer to the real first-order statistics.
Broadcast news is a challenging domain, because such shows contain an unpredictable number of different speakers speaking for a very variable amount of time and speakers sometimes talk simultaneously.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com