1. An audio reproduction apparatus suitable for use during sports training comprising: an input configured to receive an input audio signal; a user behavior identification unit configured to derive a tempo output on a basis of a data signal; an audio conditioning unit which generates an output audio signal dependent on the derived tempo output from the user behavior identification unit, the audio conditioning unit including: a tempo calculation unit which calculates an input tempo of the input audio signal, an audio processing unit which constructs, based on the input audio signal, the output audio signal with an output tempo closer to the derived tempo than the input tempo, and with an output pitch substantially equal to an input pitch of the input audio signal, the audio processing unit constructing the output audio signal by: starting with a substantially zero value output audio signal, selecting audio segments of consecutive samples of the audio input signal which meet an audio segment similarity criterion, weighting the selected audio segments; adding the selected and weighted audio segments to the output audio signal at output time instances determined by a ratio between the selected tempo and the input tempo; and an output configured to output the output audio signal.