Suitable Truncation of Room Impulse Response for Inverse Filter Design of Sound Reproduction System

Abstract:

This paper introduces an automatic decision method for designing parameters of inverse filters to simplify realization of a high-performance sound reproduction system. The reproduced performance depends on several design parameters of the inverse filters that cancel the effect of room transfer functions (RTFs). Therefore, a method of determining the sample lengths of impulse responses of RTFs is proposed. In the proposed method, a suitable sample length of the impulse response is determined based on autocorrelation function (ACF) . The results of numerical simulations using real data reveal that the proposed method can determine suitable sample lengths while maintaining reproduction performance.

• Periodical: Advanced Materials Research (Volume 222)
• Pages: 372-375
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.222.372
• Online since: April 2011
• Authors: Yosuke Tatekura, Yusuke Honda, Takayoshi Nakai
• Keywords: Autocorrelation Function, Inverse Filtering, Room Impulse Response, Sound Reproduction System

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