Apparatus, method and computer program for audio signal processing
AssigneeNokia Technologies Oy
InventorsMikko-Ville Laitinen, Juha Vilkamo
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Abstract
Examples of the disclosure relate to apparatus, electronic devices, methods and computer programs. The apparatus are configured to obtain at least a first audio signal and a second audio signal wherein the first audio signal and the second audio signal are captured by a microphone array including at least two microphones. The apparatus are also configured to identify at least a first direction and at least a second direction. The first and second directions are identified for a plurality of frequency bands. The first direction and the second direction are identified by using delay parameters between at least the first audio signal and the second audio signal.
Claims20
An apparatus comprising:
- processing circuitry;
- and
- memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, cause the apparatus to:
- obtain at least a first audio signal and a second audio signal, wherein the first audio signal and the second audio signal are captured with a microphone array comprising at least two microphones;
- identify, for a first plurality of frequency bands of at least the first audio signal and the second audio signal, at least a first direction;
- and
- identify, for a second plurality of frequency bands of at least the first audio signal and the second audio signal, at least a second direction;
- wherein the first direction and the second direction are identified using delay parameters between at least the first audio signal and the second audio signal, wherein the second direction is identified using information related to the first direction.
A method comprising:
- obtaining at least a first audio signal and a second audio signal, wherein the first audio signal and the second audio signal are captured with a microphone array comprising at least two microphones;
- identifying, for a first plurality of frequency bands of at least the first audio signal and the second audio signal, at least a first direction;
- and
- identifying, for a second plurality of frequency bands of at least the first audio signal and the second audio signal, at least a second direction corresponding;
- wherein the first direction and the second direction are identified using delay parameters between at least the first audio signal and the second audio signal, wherein the second direction is identified using information related to the first direction.
Dependencies are inferred from the claim text.