摘要:
A signal processing section 3 is set up which provides an anti-phase component signal S extracted by an anti-phase component extracting section 2 with a transfer characteristic (H d + H x ) / (H d - H x ); an adder 4 adds the phase-inverted signal of the anti-phase component signal S provided with the transfer characteristic by the signal processing section 3 and an in-phase component signal M extracted by an in-phase component extracting section 1; and an adder 5 adds the anti-phase component signal S provided with the transfer characteristic by the signal processing section 3 and the in-phase component signal M extracted by the in-phase component extracting section 1.
摘要:
An information processing device (100) includes a first acquisition unit (120) that acquires biological information on a user, a first judgment execution unit (130) that executes a first judgment on whether a first discomfort condition as a discomfort condition corresponding to the biological information is satisfied or not based on first discomfort condition information (111) specifying the first discomfort condition and the biological information acquired by the first acquisition unit (120), a second acquisition unit (140) that acquires a sound signal, an acoustic feature detection unit (150) that detects an acoustic feature based on the sound signal, a second judgment execution unit (160) that executes a second judgment on whether a second discomfort condition as a discomfort condition corresponding to the acoustic feature is satisfied or not based on second discomfort condition information specifying the second discomfort condition and the acoustic feature detected by the acoustic feature detection unit (150), and an output judgment unit (170) that judges whether first masking sound should be outputted or not based on a result of the first judgment and a result of the second judgment.
摘要:
A sound image localization apparatus includes a low band extracting section for extracting a low band signal; a filtering section for filtering the low band signal; a high band extracting section for extracting a high band signal; a gain·adjusting section for adjusting gain of the high band signal; and an adding section for adding the output signal of the gain adjusting section and the output signal of the filtering section.
摘要:
An audio signal processing device 100 includes a period detecting unit 102 for detecting the fundamental period of an input audio signal 101; a square wave generating unit 106 for generating, according to the fundamental period the period detecting unit 102 detects, a square wave 107 whose period is an integer multiple of the fundamental period; an amplitude correction coefficient generating unit 103 for calculating an amplitude correction coefficient 109 approximately equal and proportional to the intensity of the input audio signal 101; a first multiplier 108 for generating an amplitude-corrected square wave 110 by multiplying the square wave 107 by the amplitude correction coefficient 109; and an adder 104 for adding the amplitude-corrected square wave 110 to the input audio signal 101.
摘要:
A prediction error calculating unit 13 calculates an error signal 103 between a left signal l(n) 101 and a prediction signal of the left signal l(n) 101 predicted from a right signal r(n) 102, a gain adjusting unit 17 makes a gain adjustment and outputs an error signal 107, a first adder 14 adds the left signal l(n) 101 and the error signal 107 and outputs, and a second adder 15 adds the right signal r(n) 102 and the error signal 107 in opposite phase and outputs.
摘要:
An information processing device (100) includes a first acquisition unit (120) that acquires a sound signal outputted from a mic (11), an acoustic feature detection unit (130) that detects an acoustic feature based on the sound signal, an identification unit (160) that identifies first discomfort condition information corresponding to a first work type of work performed by a user, among one or more pieces of discomfort condition information specifying discomfort conditions using the acoustic feature and corresponding to one or more work types, based on work type information indicating the first work type, and an output judgment unit (170) that judges whether first masking sound should be outputted or not based on the acoustic feature detected by the acoustic feature detection unit (130) and the first discomfort condition information.
摘要:
A prediction error calculating unit 13 calculates an error signal 103 between a left signal l(n) 101 and a prediction signal of the left signal l(n) 101 predicted from a right signal r(n) 102, a gain adjusting unit 17 makes a gain adjustment and outputs an error signal 107, a first adder 14 adds the left signal l(n) 101 and the error signal 107 and outputs, and a second adder 15 adds the right signal r(n) 102 and the error signal 107 in opposite phase and outputs.
摘要:
An audio signal processing device 100 includes a period detecting unit 102 for detecting the fundamental period of an input audio signal 101; a square wave generating unit 106 for generating, according to the fundamental period the period detecting unit 102 detects, a square wave 107 whose period is an integer multiple of the fundamental period; an amplitude correction coefficient generating unit 103 for calculating an amplitude correction coefficient 109 approximately equal and proportional to the intensity of the input audio signal 101; a first multiplier 108 for generating an amplitude-corrected square wave 110 by multiplying the square wave 107 by the amplitude correction coefficient 109; and an adder 104 for adding the amplitude-corrected square wave 110 to the input audio signal 101.