Steering of binauralization of audio

A system for steering binauralization of audio, the system comprising:

• an audio receiver for receiving an audio input signal, the audio input signal comprising a plurality of audio frames;
• a binauralization detector for calculating a confidence value indicating a likelihood that a current audio frame of the audio input signal comprises binauralized audio;
• a state decider for determining a state signal based on the confidence value, the state signal indicating that the current audio frame being in an un-binauralized state or in a binauralized state;
• a switching decider for determining a steering signal, wherein, upon the state decider changing the state signal from indicating the un-binauralized state to indicating the binauralized state, the switching decider is configured to:
• change the steering signal to activate binauralization of audio by applying a head related transfer function, HRTF, on the audio input signal resulting in a binauralized audio signal, and
• generate an audio output signal, at least partly comprising the binauralized audio signal;
• wherein, upon the state decider changing the state signal from indicating the binauralized state to indicating the un-binauralized state, the switching decider sets a deactivation mode of binauralization to true;
• and
• upon the deactivation mode of the binauralization being true, and the confidence value of the current audio frame being below a deactivation threshold, and an energy value of the current audio frame being lower than energy values of a threshold number of audio frames of the audio input signal previous to the current audio frame, the switching decider is configured to:
• set the deactivation mode of the binauralization to false,
• change the steering signal to deactivate or reduce binauralization of audio, and
• generate the audio output signal at least partly comprising the audio input signal.