Method and Device for Generating and Providing an Audio Signal for Enhancing a Hearing Impression at Live Events

A device for generating and providing an audio signal, the device comprising:

• a microphone configured to record a first audio signal, wherein the microphone is an external microphone of a headphone or earphone;
• a wireless interface module configured to receive a second audio signal, wherein the second audio signal corresponds to a portion of the first audio signal and is received prior to the corresponding portion of the first audio signal;
• an audio processing unit configured to process the second audio signal using the first audio signal;
• and
• an output unit configured to provide the processed second audio signal to the headphone or earphone to be reproduced;
• wherein the audio processing unit comprises:
• first electronic circuitry configured to determine a propagation time difference between the first and second audio signal;
• second electronic circuitry configured to modify the second audio signal by adaptive filtering and temporal shifting, such that the determined propagation time difference between the first and the second audio signal is compensated, wherein a modified second audio signal is obtained;
• and
• third electronic circuitry configured to invert the modified second audio signal, wherein the processed second audio signal is obtained.

A method for generating and providing an audio signal, comprising:

• receiving a first audio signal via a microphone, wherein the first audio signal comprises a portion that is reproduced via loudspeakers;
• receiving a second audio signal via a wireless interface, the second audio signal corresponding to the portion that is reproduced via loudspeakers and being received prior to the corresponding portion of the first audio signal;
• determining a propagation time difference between the first audio signal and the second audio signal;
• modifying the second audio signal, the modifying comprising adaptive filtering and temporal shifting such that the propagation time difference between the first and second modified audio signal is substantially compensated, wherein the adaptive filtering models an acoustic transmission of the first audio signal, and wherein a modified second audio signal is obtained;
• and
• providing the modified second audio signal via a headphone or earphone.

A device for generating and providing an audio signal, the device comprising:

• a microphone configured to record a first audio signal;
• a wireless interface module configured to receive a second audio signal, wherein the second audio signal corresponds to a portion of the first audio signal and is received prior to the corresponding portion of the first audio signal;
• an audio processing unit configured to process the second audio signal using the first audio signal;
• and
• an output unit configured to provide the processed second audio signal to the headphone or earphone for being reproduced;
• wherein the audio processing unit comprises:
• first electronic circuitry configured to determine a propagation time difference between the first and second audio signal;
• second electronic circuitry configured to modify the second audio signal by adaptive filtering and temporal shifting, such that the determined propagation time difference between the first and the second audio signal is compensated, wherein a modified second audio signal is obtained;
• and
• third electronic circuitry configured to invert the modified second audio signal, wherein the processed second audio signal is obtained.