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US 12,190,901 B2Granted
Signal processing
AssigneeSony Group Corporation
InventorEmmanuel Deruty
Life of this patent
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Abstract
A signal processing method comprises comparing a first frequency domain representation of a sequence of power values for respective windows of source input samples of a source input signal with a second frequency domain representation of a sequence of power values for respective windows of target input samples of a target input signal so as to generate a frequency domain difference representation; inverse-frequency-transforming the frequency domain difference representation to generate a modification indication; and applying the modification indication to the source input samples to generate respective output samples of an output signal.
Claims24
A signal processing method comprising:
- comparing a first frequency domain representation of a sequence of power values for respective windows of source input samples of a source input signal with a second frequency domain representation of a sequence of power values for respective windows of target input samples of a target input signal to generate a frequency domain difference representation with respect to spectral profiles of the source input signal and the target input signal, wherein the source input signal has different content than the target input signal;
- inverse-frequency-transforming the frequency domain difference representation to generate a dynamic matching modification;
- and
- applying the dynamic matching modification to the source input samples to generate respective output samples of an output signal having the content of the source input signal with the spectral profile of the target input signal.
1 more element
A signal processing method comprising:
- detecting a sequence of power values for respective windows of input samples of a first input signal;
- generating a frequency domain representation of the sequence of power values that forms a first spectral profile;
- providing the frequency domain representation of the sequence of power values as a metadata signal for comparing a sequence of power values for respective windows of input samples of a second input signal that forms a second spectral profile with the metadata signal, wherein one of the first and second input signal as a target input signal and another one of the first and second input signal is a source signal, the target input signal and the source input signal having different content;
- and
- generating respective output samples of an output signal having the content of the source input signal with the spectral profile of the target input signal.
2 more elements
Signal processing apparatus comprising:
- comparator circuitry configured to compare a first frequency domain representation of a sequence of power values for respective windows of source input samples of a source input signal with a second frequency domain representation of a sequence of power values for respective windows of target input samples of a target input signal to generate a frequency domain difference representation with respect to spectral profiles of the source input signal and the target input signal, wherein the source input signal has different content than the target input signal;
- transform circuitry configured to inverse-frequency-transform the frequency domain difference representation to generate a dynamic matching modification;
- and
- output circuitry to apply the dynamic matching modification to the source input samples to generate respective output samples of an output signal having the content of the source input signal with the spectral profile of the target input signal.
1 more element
Signal processing apparatus comprising:
- detector circuitry configured to detect a sequence of power values for respective windows of input samples of a first input signal;
- generator circuitry configured to generate a frequency domain representation of the sequence of power values that forms a first spectral profile;
- output circuitry configured to provide the frequency domain representation of the sequence of power values as a metadata signal for comparing a sequence of power values for respective windows of input samples of a second input signal that forms a second spectral profile with the metadata signal, wherein one of the first and second input signal as a target input signal and another one of the first and second input signal is a source signal, the target input signal and the source input signal having different content;
- and
- generating respective output samples of an output signal having the content of the source input signal with the spectral profile of the target input signal.
2 more elements
Dependencies are inferred from the claim text.