A method for adapting a gain of an N channel audio input signal in order to generate an N channel audio output signal, wherein the N channel audio input signal comprises a speech input channel, in which speech signal components, if present in the N channel audio input signal, are present, and comprising other audio input channels, the method comprising: - dynamically determining a perceived loudness of the N channel audio input signal, - determining whether speech signal components are present in the speech input channel, wherein, if speech signal components are present in the speech input channel, - dynamically adapting a gain of the other audio input channels in a first gain control unit based on the determined perceived loudness of the N channel audio input signal with a first gain parameter such that at least two consecutive tracks of other audio output channels output from the first gain control unit are limited to a predefined range of signal levels or a predefined loudness range, - dynamically adapting a gain of the speech input channel in a second gain control unit based on the determined loudness of the N channel audio input signal with a second gain parameter such that at least two consecutive tracks of a speech output channel output from the second gain control unit are limited to the predefined range of signal levels or loudness range, wherein the second gain parameter is different from the first gain parameter, - estimating an ambient noise in a space to which the N channel audio input signal is output, wherein the gain of the other audio input channels and the speech input channel are adapted taking into account the estimated ambient noise, wherein the N channel audio input signal is output to an interior of a vehicle, wherein estimating the ambient noise comprises determining a vehicle speed and determining the ambient noise based on the determined vehicle speed, wherein determining whether speech signal components are present in the speech input channel comprises the steps of: - segmenting the speech input channel into audio frames, - carrying out a feature extraction on a per frame basis, - clustering the extracted features in a feature space. - dynamically determining a perceived loudness of the N channel audio input signal, - determining whether speech signal components are present in the speech input channel, - dynamically adapting a gain of the other audio input channels in a first gain control unit based on the determined perceived loudness of the N channel audio input signal with a first gain parameter such that at least two consecutive tracks of other audio output channels output from the first gain control unit are limited to a predefined range of signal levels or a predefined loudness range, - dynamically adapting a gain of the speech input channel in a second gain control unit based on the determined loudness of the N channel audio input signal with a second gain parameter such that at least two consecutive tracks of a speech output channel output from the second gain control unit are limited to the predefined range of signal levels or loudness range, wherein the second gain parameter is different from the first gain parameter, - estimating an ambient noise in a space to which the N channel audio input signal is output, wherein the gain of the other audio input channels and the speech input channel are adapted taking into account the estimated ambient noise, wherein the N channel audio input signal is output to an interior of a vehicle, wherein estimating the ambient noise comprises determining a vehicle speed and determining the ambient noise based on the determined vehicle speed, - segmenting the speech input channel into audio frames, - carrying out a feature extraction on a per frame basis, - clustering the extracted features in a feature space.