Apparatus and a method for signal enhancement
OwnerWei XIAO, Wenyu JINinventors
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Abstract
A signal enhancer includes an input configured to receive an audio signal. It also includes a processor that is configured to generate at least two different filters based on the audio signal X of a current frame. The processor is also configured to generate at least two filtered signals by applying each of the at least two filters to the audio signal of the current frame respectively. The processor is further configured to generate an enhanced audio signal Y for the current frame by merging the n filtered signals. This improves the robustness of the signal enhancement.
Claims18
A signal enhancer, the signal enhancer comprising:
- an input configured to receive an audio signal X;
- and
- a processor configured to:
- generate n different filters based on the audio signal X of a current frame, wherein n≥2;
- generate n filtered signals by applying each of the n filters to the audio signal X of the current frame, respectively;
- and
- generate an enhanced audio signal Y for the current frame by merging the n filtered signals,
- wherein the processor is configured to:
- generate the enhanced audio signal as a weighted sum of the n filtered signals,
- wherein the n weight values are based on a detected probability of speech presence in the audio signal X of the current frame.
(canceled)
(canceled)
A method for signal enhancement, the method comprising:
- receiving an audio signal X;
- generating n filters based on the audio signal X of a current frame, wherein n≥2;
- generating n filtered signals by applying each of the n filters to the audio signal X of the current frame, respectively;
- and
- generating an enhanced audio signal Y for the current frame by merging the n filtered signals.
A non-transitory machine readable storage medium having stored thereon processor executable instructions implementing a method, the method comprising:
- receiving an audio signal X;
- generating n filters based on the audio signal X of a current frame, wherein n≥2;
- generating n filtered signals by applying each of the n filters to the audio signal X of the current frame respectively;
- and
- generating an enhanced audio signal Y for the current frame by merging the n filtered signals
- wherein the processor is configured to:
- generate the enhanced audio signal as a weighted sum of the n filtered signals,
- wherein the n weight values are based on a detected probability of speech presence in the audio signal X of the current frame.
Dependencies are inferred from the claim text.