A method of virtually tuning an audio system that incorporates an acoustic compensation system, where the audio system is adapted to play audio signals in a listening environment using one or more sound transducers (16,18), the acoustic compensation system comprising an audio sensor located at a sensor location in the listening environment and being arranged to modify audio signals rendered by the audio system in the listening environment dynamically in response to variation in operating conditions that affect the listening environment, wherein transfer functions from each sound transducer to the audio sensor location are inherent, the method comprising: recording noise at the sensor location; creating first virtual transfer functions from each sound transducer to the sensor location, based on the inherent transfer functions from each sound transducer to the sensor location; processing audio signals outputted by the acoustic compensation system, through said first virtual transfer functions; creating a virtual sensor signal by combining the audio signals processed through said first virtual transfer functions with the noise recorded at the sensor location; feeding back the virtual sensor signal to the acoustic compensation system, causing the acoustic compensation system to modify the audio signals; wherein there is a sound evaluation location in the listening environment, and wherein transfer functions from each sound transducer to the evaluation location are inherent, the method further comprising: recording noise at the sound evaluation location simultaneously with recording noise at the sensor location; creating second virtual transfer functions from each sound transducer to the evaluation location, based on the known transfer functions from each sound transducer to the evaluation location; processing audio signals outputted by the acoustic compensation system, through said second virtual transfer functions; creating an audio evaluation signal by combining the audio signals processed through said second virtual transfer functions with the noise recorded at the sound evaluation location; using the audio evaluation signal to virtually tune the audio system remotely from the listening environment. recording noise at the sensor location; creating first virtual transfer functions from each sound transducer to the sensor location, based on the inherent transfer functions from each sound transducer to the sensor location; processing audio signals outputted by the acoustic compensation system, through said first virtual transfer functions; creating a virtual sensor signal by combining the audio signals processed through said first virtual transfer functions with the noise recorded at the sensor location; feeding back the virtual sensor signal to the acoustic compensation system, causing the acoustic compensation system to modify the audio signals; recording noise at the sound evaluation location simultaneously with recording noise at the sensor location; creating second virtual transfer functions from each sound transducer to the evaluation location, based on the known transfer functions from each sound transducer to the evaluation location; processing audio signals outputted by the acoustic compensation system, through said second virtual transfer functions; creating an audio evaluation signal by combining the audio signals processed through said second virtual transfer functions with the noise recorded at the sound evaluation location; using the audio evaluation signal to virtually tune the audio system remotely from the listening environment.