Method for determining a time delay for time delay compensation

A computer program product comprising a non-transitory computer readable storage medium having computer code thereon for determining a time delay for time delay compensation of a microphone signal from a microphone array in a beamformer arrangement, the computer code comprising:

• computer code for determining, for a given time, an instantaneous estimate of at least one of a position of a wanted sound source, and a direction of arrival of a signal originating from the wanted sound source;
• computer code for determining whether the instantaneous estimate deviates from a preset estimate of at least one of a position of the wanted sound source, and a direction of arrival of a signal originating from the wanted sound source according to a predetermined criterion, wherein the predetermined criterion comprises a check whether the instantaneous estimate deviates from the preset estimate by at least a predetermined deviation threshold;
• computer code for setting the instantaneous estimate for the given time as the preset estimate if the predetermined criterion is fulfilled;
• and
• computer code for determining the time delay for time delay compensation of the microphone signal based on the instantaneous estimate.

A system for determining a time delay for time delay compensation of a microphone signal from a microphone array in a beamformer arrangement, comprising:

• a processor for determining, for a given time, an instantaneous estimate of at least one of a position of a wanted sound source and a direction of arrival of a signal originating from the wanted sound source;
• and
• a logic circuitry determining whether the instantaneous estimate deviates from a preset estimate of at least one of a position of the wanted sound source and a direction of arrival of the signal originating from the wanted sound source according to a predetermined criterion, wherein the predetermined criterion comprises a check whether the instantaneous estimate deviates from the preset estimate by at least a predetermined deviation threshold;
• the logic circuitry setting the instantaneous estimate for the given time as the preset estimate in a memory location for the preset estimate if the predetermined criterion is fulfilled;
• the logic circuitry determining the time delay for time delay compensation of the microphone signal based on the instantaneous estimate.