Method and system for reconstructing speech signals
AssigneeHarman International Industries, Incorporated
InventorsRuiting YANG, Yueyang GUAN, Songcun CHEN, Xiang DENG
Life of this patent
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Abstract
The disclosure relates to a method and system for reconstructing speech signals. The method may estimate a transfer function between an in-air speech signal outputted from at least one in-air sensor and an in-ear speech signal outputted from at least one in-ear sensor, and obtain an estimated speech signal based on the estimated transfer function and the in-ear speech signal. The method may further perform an excitation expansion on the estimated speech signal to obtain a first estimated excitation signal, and reconstruct a speech signal based on the first estimated excitation signal.
Claims20
A method for reconstructing speech signals, the method comprising:
- estimating a transfer function between an in-air speech signal and an in-ear speech signal;
- obtaining an estimated speech signal based on the estimated transfer function and the in-ear speech signal;
- performing an excitation expansion on the estimated speech signal to obtain a first estimated excitation signal;
- and
- reconstructing a speech signal based on the first estimated excitation signal.
A system for reconstructing speech signals, the system comprising:
- at least one in-air sensor;
- at least one in-ear sensor;
- and
- a processor coupled to the at least one in-air sensor and the at least one in-ear sensor and configured to:
- estimate a transfer function between an in-air speech signal outputted from the at least one in-air sensor and an in-ear speech signal outputted from the at least one in-ear sensor;
- obtain an estimated speech signal based on the estimated transfer function and the in-ear speech signal;
- perform an excitation expansion on the estimated speech signal to obtain a first estimated excitation signal;
- and
- reconstruct a speech signal based on the first estimated excitation signal.
One or more non-transitory computer-readable media storing processor-executable instructions that, when executed by at least one processor, cause the at least one processor to:
- estimate a transfer function between an in-air speech signal and an in-ear speech signal;
- obtain an estimated speech signal based on the estimated transfer function and the in-ear speech signal;
- perform an excitation expansion on the estimated speech signal to obtain a first estimated excitation signal;
- and
- reconstruct a speech signal based on the first estimated excitation signal.
Dependencies are inferred from the claim text.