Apparatus for processing an audio signal to obtain control information per subband for a speech enhancement filter, comprising: a feature extractor for obtaining a time sequence of short-time spectral representations of the audio signal and for extracting at least one first feature in each frequency band of a plurality of frequency bands for a plurality of short-time spectral representations, the at least one first feature representing a spectral shape of a short-time spectral representation in a frequency band of the plurality of frequency bands, wherein the feature extractor is operative to extract additional second features representing a characteristic of a short-time spectral representation per frequency band being at least one of a spectral energy, a spectral flux between successive frames, and delta or delta-delta features, and wherein the feature extractor is operative to additionally extract third features for the full bandwidth being at least one of LPC features, the LPC features including an LPC error signal, linear prediction coefficients until a predefined order or a combination of the LPC error signals and linear prediction coefficients, PLP coefficients, RASTA-PLP coefficients, mel-frequency cepstral coefficients and delta features; and a feature combiner for combining the at least one first feature, the at least one second feature, and the at least one third feature using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal, wherein the feature combiner is operative to combine the at least one first feature for each frequency band representing a spectral shape, the at least one additional second feature per frequency band, and the at least one additional third feature for the full bandwidth using the combination parameters. a feature extractor for obtaining a time sequence of short-time spectral representations of the audio signal and for extracting at least one first feature in each frequency band of a plurality of frequency bands for a plurality of short-time spectral representations, the at least one first feature representing a spectral shape of a short-time spectral representation in a frequency band of the plurality of frequency bands, wherein the feature extractor is operative to extract additional second features representing a characteristic of a short-time spectral representation per frequency band being at least one of a spectral energy, a spectral flux between successive frames, and delta or delta-delta features, and wherein the feature extractor is operative to additionally extract third features for the full bandwidth being at least one of LPC features, the LPC features including an LPC error signal, linear prediction coefficients until a predefined order or a combination of the LPC error signals and linear prediction coefficients, PLP coefficients, RASTA-PLP coefficients, mel-frequency cepstral coefficients and delta features; and a feature combiner for combining the at least one first feature, the at least one second feature, and the at least one third feature using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal, wherein the feature combiner is operative to combine the at least one first feature for each frequency band representing a spectral shape, the at least one additional second feature per frequency band, and the at least one additional third feature for the full bandwidth using the combination parameters.