A device for analyzing an audio signal to obtain an analysis representation of the audio signal, comprising: a means for converting the audio signal to a representation rendering a neurotransmitter vesicle occurrence (122, 124, 126) in clefts between a plurality of nerve fibers and inner auditory cells of an ear model; and a means (130, 132, 134) for calculating a neural activity pattern over time on the plurality of nerve fibers which results from the neurotransmitter vesicle occurrence (122, 124, 126), wherein the neural activity pattern is the analysis representation of the audio signal; wherein the means for converting the audio signal is configured to calculate an occurrence of neurotransmitters that is quantized in the form of vesicles, wherein the means for converting the audio signal is configured to calculate a release probability for neurotransmitter vesicles by analyzing mechanical, chemical and electrical processes within an auditory cell, and to calculate neurotransmitter vesicle release on the basis of said release probability by means of a stochastic evaluation; wherein the device is configured to derive action potentials on nerve fibers from neurotransmitter vesicle occurrences, wherein vesicle release over time and frequency comprises trajectories, and wherein said trajectories are mapped onto trajectories of action potentials by a modeling a synaptic cleft; wherein the means (130, 132, 134) for calculating the neural activity pattern comprises a means for calculating a voltage in a nerve cell which results from the neurotransmitter vesicle occurrence (122, 124, 126), and a means for deciding about a release of an action potential, which forms a peak associated with a nerve fiber in the neural activity pattern, on the basis of the voltage of the nerve cell; wherein the means for converting the audio signal includes a means for converting the audio signal to a representation describing a movement of a basilar membrane in the ear model, a means for converting the representation describing the movement of the basilar membrane to a representation describing a deflection of a stereocilium of a hair cell coupled to the basilar membrane, and a means for converting the representation describing the deflection of the stereocilium to a representation describing the neurotransmitter vesicle occurrence; wherein the means for converting the representation describing the movement of the basilar membrane to the representation describing the deflection of a stereocilium is implemented to describe the stereocilium by a model of a harmonic oscillator which comprises a spring return force and an attenuation due to a laminar flow resistance; wherein the model of the harmonic oscillator is implemented so that excitation of the harmonic oscillator is performed by a second force component F stoch, which describes a stochastic thermal force. a means for converting the audio signal to a representation rendering a neurotransmitter vesicle occurrence (122, 124, 126) in clefts between a plurality of nerve fibers and inner auditory cells of an ear model; and a means (130, 132, 134) for calculating a neural activity pattern over time on the plurality of nerve fibers which results from the neurotransmitter vesicle occurrence (122, 124, 126), wherein the neural activity pattern is the analysis representation of the audio signal; wherein the means for converting the audio signal is configured to calculate an occurrence of neurotransmitters that is quantized in the form of vesicles, wherein the means for converting the audio signal is configured to calculate a release probability for neurotransmitter vesicles by analyzing mechanical, chemical and electrical processes within an auditory cell, and to calculate neurotransmitter vesicle release on the basis of said release probability by means of a stochastic evaluation; wherein the device is configured to derive action potentials on nerve fibers from neurotransmitter vesicle occurrences, wherein vesicle release over time and frequency comprises trajectories, and wherein said trajectories are mapped onto trajectories of action potentials by a modeling a synaptic cleft; wherein the means (130, 132, 134) for calculating the neural activity pattern comprises a means for calculating a voltage in a nerve cell which results from the neurotransmitter vesicle occurrence (122, 124, 126), and a means for deciding about a release of an action potential, which forms a peak associated with a nerve fiber in the neural activity pattern, on the basis of the voltage of the nerve cell; wherein the means for converting the audio signal includes a means for converting the audio signal to a representation describing a movement of a basilar membrane in the ear model, a means for converting the representation describing the movement of the basilar membrane to a representation describing a deflection of a stereocilium of a hair cell coupled to the basilar membrane, and a means for converting the representation describing the deflection of the stereocilium to a representation describing the neurotransmitter vesicle occurrence; wherein the means for converting the representation describing the movement of the basilar membrane to the representation describing the deflection of a stereocilium is implemented to describe the stereocilium by a model of a harmonic oscillator which comprises a spring return force and an attenuation due to a laminar flow resistance; wherein the model of the harmonic oscillator is implemented so that excitation of the harmonic oscillator is performed by a second force component F stoch, which describes a stochastic thermal force.