“…Existing array systems have been used in a number of applications. These include teleconferencing (Flanagan, 1985a,b;Flanagan et al, 1991;Kellerman, 1991), speech recognition (Silverman, 1987;Che, Rahim & Flanagan, 1992;Che et al, 1994;Giuliani, Omologo & Svaizer, 1994), speaker identification (Lin, Jan & Flanagan, 1994), speech acquisition in an automobile environment (Grenier, 1992;Oh, Viswanathan & Papamichalis, 1992), sound capture in reverberant enclosures (Flanagan, Surendran & Jan, 1993;Adugna, 1994;Jan, Svaizer & Flanagan, 1995), largeroom recording-conferencing (Flanagan et al, 1985), acoustic surveillance (Omologo & Svaizer, 1993, 1994, and hearing aid devices (Greenberg & Zurek, 1992). …”