Methods and apparatus to enhance an audio signal
US-2022225023-A1 · Jul 14, 2022 · US
US12512112B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12512112-B2 |
| Application number | US-202217879174-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 2, 2022 |
| Priority date | Aug 2, 2022 |
| Publication date | Dec 30, 2025 |
| Grant date | Dec 30, 2025 |
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This disclosure describes systems, methods, and devices related to reducing noise in and improving speech signals and radio signals. A device may identify a radio frequency signal received by radio frequency circuity at a time; apply a Short Time Fourier Transform (STFT) to the radio frequency signal to generate a STFT signal; identify a signal-to-noise ratio associated with the radio frequency signal at the time; identify a packet-error-rate associated with the radio frequency signal at the time; identify activity when the multiplexed radio frequency signal is received by the radio frequency circuity at the time; select, based on the signal-to-noise ratio, the packet-error-rate, and the activity, a spectral mask to be applied to the STFT signal; apply the selected spectral mask to the STFT signal to generate a clean STFT signal; and apply an inverse STFT to the clean STFT signal to generate a clean radio frequency signal.
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What is claimed is: 1 . An apparatus for reducing noise in and improving speech signals and radio signals, the apparatus comprising processing circuitry coupled to memory, the processing circuitry configured to: identify a multiplexed radio frequency signal received by radio frequency circuitry of a device comprising the apparatus at a time; apply a Short Time Fourier Transform (STFT) to the multiplexed radio frequency signal to generate a STFT signal in a STFT domain; ident…
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