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

Jan Rennies

Jens Ekkehart Appell

Henning Schepker

Simon Doclo

An apparatus for generating a modified speech signal from a speech input signal which has a plurality of speech subband signals, the modified speech signal having a plurality of modified subband signals is provided, having: a weighting information generator for generating weighting information for each speech subband signal depending on a signal power of said speech subband signal, and a signal modifier for modifying each speech subband signal by applying the weighting information on said speech subband signal to obtain a modified subband signal. The weighting information generator is configured to generate the weighting information for each of the plurality of speech subband signals, wherein the signal modifier is configured to modify each of the speech subband signals so that a first speech subband signal having a first signal power is amplified with a first degree, and so that a second speech subband signal having a second signal power is amplified with a second degree, the first signal power being greater than the second signal power, and the first degree being lower than the second degree.

Apparatus and method for improving speech intelligibility in background noise by amplification and compression

A sound reproduction device includes a signal processing chain configured to render an acoustic useful signal for reproduction to a listener, a simulation scenario processor configured to provide auditory scenario information for a simulated auditory scenario, the simulated auditory scenario influencing perception, by the listener, of the reproduction of the useful signal and/or defining a useful signal type, a user interface configured to detect reproduction parameter settings from a user which represent an individual preference of the listener in view of the simulated auditory scenario, a signal modifier configured to receive the reproduction parameter settings and modify reproduction of the useful signal in dependence on the reproduction parameter settings, and a storage provided for storing the reproduction parameter setting and the auditory scenario information relative to one another. Further aspects relate to a method for training user-defined and auditory scenario-dependent reproduction parameter settings for a sound reproduction device, and a corresponding computer program.

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Oldenburg, Germany

Jan Rennies