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Scale differences were produced by changing the vocal tract length and glottal pulse rate during syllable synthesis: 32 acoustic scale differences were used. Location cues were produced by convolving head-related transfer functions with the stimulus. The angle between the target speaker and the distracter was 0\u00b0, 4\u00b0, 8\u00b0, 16\u00b0, or 32\u00b0 on the 0\u00b0 horizontal plane. The relative level of the target to the distracter was 0 or \u22126 dB. The results show that location and scale difference interact, and the interaction is greatest when one of these cues is small. Increasing either the acoustic scale or the angle between target and distracter speakers quickly elevates performance to ceiling levels.<\/jats:p>","DOI":"10.1121\/1.3377051","type":"journal-article","created":{"date-parts":[[2010,6,9]],"date-time":"2010-06-09T22:13:35Z","timestamp":1276121615000},"page":"3729-3737","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":6,"title":["Location and acoustic scale cues in concurrent speech recognition"],"prefix":"10.1121","volume":"127","author":[{"given":"D. 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