ACOUSTIC SIGNAL PROCESSING DEVICE AND ACOUSTIC SIGNAL PROCESSING METHOD
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Accused Products
Abstract
A corrective measurement part of a processing control part 119A measures an aspect of specific sound field correction processing performed on an acoustic signal received from a specific external device. Based on this measurement result, settings for cancellation of specific sound field correction processing performed on that acoustic signal are made for a correction cancellation part 310. Furthermore, an aspect of appropriate sound field processing corresponding to the actual sound field space is acquired by an appropriate correction acquisition part of the processing control part 119A. Based on the result acquired in this manner, settings for performing appropriate sound field correction processing upon a signal SND are made for a correction processing part 330. Thus, whichever one of acoustic signals received by a reception processing part 111 is selected, an output acoustic signal can be supplied to speaker units in after appropriate sound field correction processing.
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Citations
31 Claims
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1-15. -15. (canceled)
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16. An acoustic signal processing device that creates acoustic signals to be supplied to a plurality of speakers, each of which outputs sound according to a channel assigned previously to a sound field space, comprising:
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a reception part configures to receive acoustic signals from each of a plurality of external devices; a measurement part configures to measure an aspect of specific sound field correction processing, which is sound field correction processing carried out upon a specific acoustic signal, which is an acoustic signal received from a specific one among said plurality of external devices; an acquisition part configures to acquires an aspect of appropriate correction processing, which is sound field correction processing corresponding to said sound field space that is to be carried out upon an original acoustic signal; and a generation part configures to generate an acoustic signal by carrying out said appropriate correction processing upon the original acoustic signal that corresponds to said specific acoustic signal, on the basis of the result of measurement by said measurement part and the result of acquisition by said acquisition part, when said specific acoustic signal has been selected as the acoustic signal to be supplied to said plurality of speakers, wherein said specific sound field correction processing for a subject by said measurement part is at least one of individual sound field correction processing selected from the group consisting of synchronization correction processing that aims to improve the synchronization of audio outputted from each of said plurality of speakers, audio volume balance correction processing in which the balances of the volumes of audio outputted from each of said plurality of speakers are corrected, and frequency characteristic correction processing in which the frequency characteristics of acoustic signals supplied to each of said plurality of speakers are corrected. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 31)
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28. An acoustic signal processing method that creates acoustic signals to be supplied to a plurality of speakers, each of which outputs sound according to a channel assigned previously to a sound field space, comprising the steps of:
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measuring an aspect of specific sound field correction processing, which is sound field correction processing carried out upon a specific acoustic signal, which is an acoustic signal received from a specific one among a plurality of external devices; acquiring an aspect of appropriate correction processing, which is sound field correction processing corresponding to said sound field space that is to be carried out upon an original acoustic signal; and generating an acoustic signal by carrying out said appropriate correction processing upon the original acoustic signal that corresponds to said specific acoustic signal, on the basis of the result of measurement by said measurement process and the result of acquisition by said acquisition process, wherein said specific sound field correction processing to be a subject in said measuring step is at least one of individual sound field correction processing selected from the group consisting of a synchronization correction processing for synchronizing the individual sound output from said plurality of speakers, sound volume balance correction processing for correcting a balance of a sound volume output from said plurality of speakers, and a frequency characteristic correction processing for correcting the frequency characteristic of the individual acoustic signals in the original acoustic signal supplied to said plurality of speakers. - View Dependent Claims (29, 30)
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Specification