Hearing aid with assisted noise suppression

A hearing system including a hearing aid and a personal communication device for improving speech intelligibility for a hearing aid user in a public place with music included in the background noise,

• said hearing aid including:
• an input transducer picking up an audio signal from the environment and providing an electric input signal accordingly;
• a signal processor processing an electric input signal according to audio processing parameters of the hearing aid, and outputting a processed electric signal;
• an output transducer providing an output audio signal based upon the processed electric signal;
• and
• a short-range radio transceiver for providing a short-range radio communication link;
• said personal communication device including:
• a processing unit adapted for retrieving a music stream signal corresponding to the music present in the background noise;
• and
• a short-range radio transceiver for providing a short-range radio communication link;
• said processing unit adapted to stream the music stream signal to the hearing aid via said short range radio communication link;
• and
• wherein the signal processor of the hearing aid is adapted to combine the input signal from the input transducer and the music stream signal of the personal communication device in order to reduce the prevalence of the music included in the background noise from the output audio signal delivered by the output transducer,
• wherein the signal processor of the hearing aid includes:
• a subtractor component subtracting the music stream signal from the input signal;
• and
• a digital filter synchronizing the music stream signal relatively to the input signal by minimizing a cost function based on the output from the subtractor component.