An adaptive jitter buffer for buffering audio data received via a packet-switched network, comprising: - an adaptive audio sample buffer, wherein the adaptive audio sample buffer comprises: - an adaptive resampler for receiving a number of audio samples of the audio data and for outputting a first number of audio samples, which are resampled from the received number of audio samples according to a resampling factor, - an audio sample buffer for buffering audio samples, wherein the outputted first number of audio samples are written to the audio sample buffer during an input access event and a second number of audio samples are read from the audio sample buffer during an output access event, and - an audio sample buffer fill quantity controller for controlling the fill quantity of the audio sample buffer, wherein the audio sample buffer fill quantity controller is adapted to control the fill quantity of the audio sample buffer based on controlling the resampling factor of the adaptive resampler, wherein the audio sample buffer fill quantity controller comprises: - an audio sample buffer fill quantity estimator for estimating an average instantaneous fill quantity of the audio sample buffer during an observation event, - a jitter estimator for estimating a jitter, - an audio sample buffer target fill quantity determiner for determining a target fill quantity of the audio sample buffer in dependence of the estimated jitter, and - an adaptive resampler controller for controlling the resampling factor of the adaptive resampler such that the fill quantity of the audio sample buffer approaches the determined target fill quantity of the audio sample buffer. - an adaptive audio sample buffer, wherein the adaptive audio sample buffer comprises: - an adaptive resampler for receiving a number of audio samples of the audio data and for outputting a first number of audio samples, which are resampled from the received number of audio samples according to a resampling factor, - an audio sample buffer for buffering audio samples, wherein the outputted first number of audio samples are written to the audio sample buffer during an input access event and a second number of audio samples are read from the audio sample buffer during an output access event, and - an audio sample buffer fill quantity controller for controlling the fill quantity of the audio sample buffer, wherein the audio sample buffer fill quantity controller is adapted to control the fill quantity of the audio sample buffer based on controlling the resampling factor of the adaptive resampler, wherein the audio sample buffer fill quantity controller comprises: - an audio sample buffer fill quantity estimator for estimating an average instantaneous fill quantity of the audio sample buffer during an observation event, - a jitter estimator for estimating a jitter, - an audio sample buffer target fill quantity determiner for determining a target fill quantity of the audio sample buffer in dependence of the estimated jitter, and - an adaptive resampler controller for controlling the resampling factor of the adaptive resampler such that the fill quantity of the audio sample buffer approaches the determined target fill quantity of the audio sample buffer. - an adaptive resampler for receiving a number of audio samples of the audio data and for outputting a first number of audio samples, which are resampled from the received number of audio samples according to a resampling factor, - an audio sample buffer for buffering audio samples, wherein the outputted first number of audio samples are written to the audio sample buffer during an input access event and a second number of audio samples are read from the audio sample buffer during an output access event, and - an audio sample buffer fill quantity controller for controlling the fill quantity of the audio sample buffer, wherein the audio sample buffer fill quantity controller is adapted to control the fill quantity of the audio sample buffer based on controlling the resampling factor of the adaptive resampler, - an audio sample buffer fill quantity estimator for estimating an average instantaneous fill quantity of the audio sample buffer during an observation event, - a jitter estimator for estimating a jitter, - an audio sample buffer target fill quantity determiner for determining a target fill quantity of the audio sample buffer in dependence of the estimated jitter, and - an adaptive resampler controller for controlling the resampling factor of the adaptive resampler such that the fill quantity of the audio sample buffer approaches the determined target fill quantity of the audio sample buffer.