Spatial audio capture

Spatial audio capture

A method of spatial audio capture comprising: determining a 1st direction parameter through modifying a pair of audio signals, and determining a 2nd direction parameter based on the modified signals. Modifying the audio signals may comprise: maximising the correlation between the pair of signals thr...

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Hauptverfasser: Mikko-Ville Laitinen, Toni Henrik Mäkinen, Mikko Tapio Tammi
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
STEREOPHONIC SYSTEMS
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creator Mikko-Ville Laitinen
Toni Henrik Mäkinen
Mikko Tapio Tammi
description A method of spatial audio capture comprising: determining a 1st direction parameter through modifying a pair of audio signals, and determining a 2nd direction parameter based on the modified signals. Modifying the audio signals may comprise: maximising the correlation between the pair of signals through applying a delay to one of them, identifying and subtracting a common component of the signals, and removing the delay from the delayed one of the pair. The common component may be multiplied by a gain value. The method may be applied to individual frequency bands of the sound signal and may only be applied if the frequency band is below a threshold. A 1st sound energy parameter may be determined based on the audio signals, and a 2nd sound source energy parameter may be determined based on the audio signals and the 1st energy parameter. The energy parameter may be a direct-to-total ratio.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
STEREOPHONIC SYSTEMS
title Spatial audio capture
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