Adaptation of automatic speech recognition acoustic models
AssigneeNokia Corporation
InventorJilei Tian
Life of this patent
Estimating the term…
Abstract
Methods and systems for adapting of acoustic models are disclosed. A user terminal may determine a phoneme distribution of a text corpus, determine an acoustic model gain distribution of phonemes of an acoustic model before and after adaptation of the acoustic model, determine a desired phoneme distribution based on the phoneme distribution and the acoustic model gain distribution, generate an adaption sentence based on the desired phoneme distribution, and generate a prompt requesting a user speak the adaptation sentence.
Claims30
A method comprising:
- determining a phoneme distribution of a text corpus;
- determining an acoustic model gain distribution of phonemes of an acoustic model before and after adaptation of the acoustic model;
- determining a desired phoneme distribution based on the phoneme distribution and the acoustic model gain distribution;
- generating an adaption sentence based on the desired phoneme distribution;
- and
- generating a prompt requesting a user speak the adaptation sentence.
An apparatus comprising:
- a processor;
- a memory having computer readable instructions that, when executed, cause the apparatus to:
- determine a phoneme distribution of a text corpus;
- determine an acoustic model gain distribution of phonemes of an acoustic model before and after adaptation of the acoustic model;
- determine a desired phoneme distribution based on the phoneme distribution and the acoustic model gain distribution;
- generate an adaption sentence based on the desired phoneme distribution;
- and
- generate a prompt requesting a user speak the adaptation sentence.
One or more computer readable media storing computer-executable instructions which, when executed by a processor, cause the processor to perform a method comprising:
- determining a phoneme distribution of a text corpus;
- determining an acoustic model gain distribution of phonemes of an acoustic model before and after adaptation of the acoustic model;
- determining a desired phoneme distribution based on the phoneme distribution and the acoustic model gain distribution;
- generating an adaption sentence based on the desired phoneme distribution;
- and
- generating a prompt requesting a user speak the adaptation sentence.
An apparatus comprising:
- means for determining a phoneme distribution of a text corpus;
- means for determining an acoustic model gain distribution of phonemes of an acoustic model before and after adaptation of the acoustic model;
- means for determining a desired phoneme distribution based on the phoneme distribution and the acoustic model gain distribution;
- means for generating an adaption sentence based on the desired phoneme distribution;
- and
- means for generating a prompt requesting a user speak the adaptation sentence.
Dependencies are inferred from the claim text.