Patent ID: 7519443
Filing Date: 2009-04-14
Classification: G11B,H04R,H04S

Abstract:
1. An information signal reproducing apparatus comprising: signal format detection means including a decoding unit for decoding an RF signal read from a predetermined area of a recording medium, determining whether both of audio data and video data are contained, and producing decoded information relating to audio data contained in the recording medium, said decoded information including at least a type of said recording medium and an encoding format of audio data to be reproduced; estimating means for estimating to which type of a movie sound, a music sound, and a speech sound said audio data corresponds in accordance with the determined result of whether both of audio data and video data are contained and said decoded information produced by said decoding unit of said signal format detection means and for outputting an estimation result; an amplifier section for producing a signal fed to a loudspeaker to produce an audible sound; and output control means for performing at least one of sound level controlling, frequency characteristic controlling, and output channel selecting for said decoded information over said amplifier section in accordance with said estimation result output from said estimating means, wherein when said estimating means estimates that said audio data corresponds to a music sound, said output control means controls an output level of sound through a selected channel produced by said loudspeaker and amplifier section to be attenuated compared with a highly controlled averaged sound level of the music sound, and when said estimating means estimates that said audio data corresponds to a movie sound, said output control means controls said output level of sound through said selected channel produced by said loudspeaker and amplifier section to be increased compared with a lowly controlled averaged sound level of the movie sound.