System and Method for Modulation Domain-Based Audio Signal Encoding
AssigneeNuance Communications, Inc.
InventorsDushyant Sharma, Patrick Aubrey Naylor, William Francis Ganong, III
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Abstract
A method, computer program product, and computing system for processing an audio signal by converting the audio signal to the modulation domain. The modulation domain audio signal is encoded with a plurality of carrier signals and a plurality of modulator signals derived from the modulation domain audio signal. The encoded modulation domain audio signal is converted to the time domain.
Claims20
A computer-implemented method, executed on a computing device, comprising:
- generating a modulation domain representation of an audio signal by converting the audio signal to the modulation domain;
- encoding the modulation domain representation of the audio signal with a plurality of carrier signals and a plurality of modulator signals derived from the modulation domain representation of the audio signal;
- and
- generating an encoded audio signal by converting the encoded modulation domain representation of the audio signal to the time domain.
A computing system comprising:
- a memory;
- and
- a processor configured to generate a modulation domain representation of a speech signal by converting the speech signal to the modulation domain, to encode the modulation domain representation of the speech signal with a plurality of carrier signals and a plurality of modulator signals derived from the modulation domain representation of the speech signal, to generate an encoded speech signal by converting the encoded modulation domain representation of the speech signal to the time domain, to transmit the encoded speech signal, and to process the encoded speech signal directly using a speech processing system.
A computer program product residing on a non-transitory computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:
- generating a modulation domain representation of an encoded audio signal by converting the encoded audio signal to the modulation domain;
- decoding the modulation domain representation of the encoded audio signal with a plurality of carrier signals and a plurality of modulator signals derived from the modulation domain representation of the encoded audio signal;
- generating a decoded audio signal by converting the modulation domain representation of the decoded audio signal to the time domain;
- and
- processing the decoded audio signal using a speech processing system.
Dependencies are inferred from the claim text.