Patent ID: 8622919

Claim:
An apparatus comprising a media player element configured to provide audio content for rendering; a speaker suitable to be applied at a user's ear and enabled to be supplied with an electronic audio signal for rendering, the electronic audio signal being generated based on the audio content provided by the media player element; a microphone arranged in vicinity of the speaker to acquire a sound signal from sounds present in the ear of the user, the acquired sounds including audio sound generated by the speaker for rendering the audio content; and a signal processor, wherein the signal processor has a first input and a second input, the second input of the signal processor being coupled to the microphone, wherein the first input of the signal processor is different from the second input and is coupled to an input of the speaker at which the electronic audio signal is supplied to the speaker, and the signal processor is arranged to filter the acquired sound signal and to then subtract the electronic audio signal which is supplied to the speaker for rendering and which is received at the first input of the signal processor from the filtered acquired sound signal to provide a physiological sound signal, and the signal processor is further arranged to detect a physiological measurement from the physiological sound signal.