Patent ID: 11862184
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The apparatus of claim 1, wherein the upsampler is configured
to fill up, for a preceding audio access unit, the spectrum having frequencies, with respect to frequency, above the maximum frequency of the first spectral width of the core audio signal with zeroes to obtain a filled-up spectrum of the preceding audio access unit in the sequence of audio access units,
to fill up, for the audio access unit, the spectrum having frequencies, with respect to frequency, above the maximum frequency of the first spectral width of the core audio signal with zeroes to obtain a filled-up spectrum of the audio access unit in the sequence of audio access units,
to perform a spectrum to time transform of the filled up spectrum of the audio access unit to obtain a time domain signal for the filled up spectrum of the audio access unit and to perform a spectrum to time transform of the filled up spectrum of the preceding audio access unit to obtain a time domain signal for the filled up spectrum of the preceding audio access unit, and
to perform an overlap-add of the time domain signal for the filled up spectrum of the preceding audio access unit and of the time domain signal for the filled up spectrum of the audio access unit, to acquire an intermediate time signal.