Enhancing audio using a mobile device

A computer program product comprising computer executable program code recorded on a computer readable non-transitory storage medium, said computer executable program code when executed, performing a method for obtaining a high quality version of a first audio signal that is generated by a first audio source and is being played back on an audio system that includes a source device and at least one rendering device, the method comprising:

• identifying the first audio signal;
• determining whether a quality of the first audio signal is below a quality threshold, wherein said determining comprises:
• obtaining a portion of a second audio signal having a higher quality than the first audio signal from a second audio source;
• time aligning the obtained portion of the second audio signal and the identified first audio signal;
• calculating a metric based on a difference between the obtained portion of the second audio signal and the identified first audio signal, wherein the metric is calculated in accordance with:
• Sq=(H*H+O*O)/(H−O)*(H−O)
• where H is the obtained portion of the second audio signal, O is the identified first audio signal and Sq is the quality of the identified first audio signal;
• and
• in response to determining that the quality of the first audio signal is below the quality threshold, providing a location of the second audio source or a portion of the second audio signal to the source device.

A mobile device configured to obtain a high quality version of a first audio signal, comprising:

• at least one microphone configured to detect the first audio signal that is generated by a first audio source and is being played back by at least one rendering device coupled to a source device;
• and
• a processing unit configured to:
• identify the first audio signal;
• determine whether a quality of the first audio signal is below a quality threshold, wherein said processing unit is configured to determine whether the quality of the first audio signal is below a quality threshold by:
• obtaining a portion of a second audio signal having a higher quality than the first audio signal from a second audio source;
• time aligning the obtained portion of the second audio signal and the identified first audio signal;
• calculating a metric based on a difference between the obtained portion of the second audio signal and the identified first audio signal, wherein the metric is calculated in accordance with:
• Sq=(H*H+O*O)/(H−O)*(H−O)
• where H is the obtained portion of the second audio signal, O is the identified first audio signal and Sq is the quality of the identified first audio signal;
• and
• in response to a determination that the quality of the first audio signal is below the quality threshold, provide a location of the second audio source or a portion of the second audio signal to the source device.