Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Janine Sukowski

Christian Helmrich

Ralf Geiger

Bernd Edler

Goran Markovic

Ralph Sperschneider

Wolfgang Jaegers

An approach is described that obtains spectrum coefficients for a replacement frame of an audio signal. A tonal component of a spectrum of an audio signal is detected based on a peak that exists in the spectra of frames preceding a replacement frame. For the tonal component of the spectrum a spectrum coefficients for the peak and its surrounding in the spectrum of the replacement frame is predicted, and for the non-tonal component of the spectrum a non-predicted spectrum coefficient for the replacement frame or a corresponding spectrum coefficient of a frame preceding the replacement frame is used.

Method and apparatus for obtaining spectrum coefficients for a replacement frame of an audio signal, audio decoder, audio receiver, and system for transmitting audio signals

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Erlangen, Germany

Janine Sukowski