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US 11,450,339 B2Granted
Audio file envelope based on RMS power in sequences of sub-windows
AssigneeSony Europe Limited
InventorEmmanuel Deruty
Life of this patent
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Abstract
A method comprising determining an envelope of an audio file based on a double-windowing analysis of the audio file.
Claims13
A method comprising:
- determining, by circuitry of an electronic device, an envelope of an audio file based on a double-windowing analysis of the audio file, wherein
- the double-windowing analysis comprises windowing, by the circuitry, the audio file to obtain a sequence of windows containing audio, and windowing, by the circuitry, each window of the sequence of windows to obtain, for each window, a respective sequence of sub-windows, and
- determining the envelope from the sequence of windows comprises discarding sub-windows whose loudness is below a threshold and evaluating the loudness of each window over the remaining audio.
An electronic device comprising:
- circuitry configured to determine an envelope of an audio file based on a double-windowing analysis of the audio file, wherein
- the double-windowing analysis comprises windowing the audio file to obtain a sequence of windows containing audio, and windowing each window of the sequence of windows to obtain, for each window, a respective sequence of sub-windows, and
- determining the envelope from the sequence of windows comprises discarding sub-windows whose loudness is below a threshold and evaluating the loudness of each window over the remaining audio.
A non-transitory computer-readable medium including a computer program comprising instructions, which when executed on a processor cause the processor to:
- determine an envelope of an audio file based on a double-windowing analysis of the audio file, wherein
- the double-windowing analysis comprises windowing the audio file to obtain a sequence of windows containing audio, and windowing each window of the sequence of windows to obtain, for each window, a respective sequence of sub-windows, and
- determining the envelope from the sequence of windows comprises discarding sub-windows whose loudness is below a threshold and evaluating the loudness of each window over the remaining audio.
Dependencies are inferred from the claim text.