Microphone interference reduction in live sound

Clifford, Alice and Reiss, Joshua D. (2011) Microphone interference reduction in live sound. In: 14th International Conference on Digital Audio Effects (DAFx-11), 19-23 Sep 2011, Paris, France.

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Abstract

When multiple microphones are used to reproduce multiple sources microphone interference, or bleed, can occur due to each microphone picking up more than one source. This paper proposes combining the crosstalk resistant adaptive noise canceller (CTRANC) algorithm with centred adaptive filters using an estimation of delay to suppress the interference, while making little change to the target signal. The proposed method is compared with similar methods in both the anechoic and echoic cases. The method is shown to outperform the other methods in the anechoic case while in the echoic case it is shown to perform less well at reducing the level of the interference but still introduces the least artefacts. Extension to the proposed method to the N source and microphone case is also discussed.

Item Type: Conference or Workshop Item (Paper)
Subjects: Computing
Depositing User: Vani Aul
Date Deposited: 17 Dec 2013 15:23
Last Modified: 27 Jul 2017 09:42
URI: http://repository.uwl.ac.uk/id/eprint/508

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