摘要:
According to one embodiment, a sound information determining apparatus includes: a holding module configured hold a plurality of determining techniques, each of which determines, with respect to a noise of each type that may be present in an input audio signal, whether the noise of corresponding type is present according to a noise characteristic; and a determining module configured to determine whether noise is present in the input audio signal by making use of some of the plurality of the determining techniques held with respect to the noise of each type.
摘要:
Provided is a capillary tube (1) for holding an optical fiber comprises: an insertion hole (2) for inserting and fixing the optical fiber (F) formed therein; a cylindrical surface (3) as an outer circumferential surface; and a groove (4) formed in the cylindrical surface (3) in an axial direction thereof, wherein regions from the cylindrical surface (3) to both inner side surfaces (5) of the groove (4) each have a projecting curved surface (6), and regions from both the inner side surfaces (5) of the groove (4) to a bottom of the groove (4) each have a recessed curved surface (7).
摘要:
A non-contact communication antenna unit capable of implementing a thickness reduction of a mobile communication device and also suppressing a reduction in a communication range characteristic of a non-contact communication antenna even when metal components such as circuit wirings, a circuit GND, a shielding case, etc. being arranged on the inside of the mobile communication device are arranged in close vicinity to the non-contact communication antenna is provided.A non-contact communication antenna 9 and a magnetic sheet 11 arranged on one surface of a non-contact communication circuit board 8 respectively, and an non-contact communication electronic components 10 and a magnetic sheet 12 arranged on the other surface of the non-contact communication circuit board 8 respectively are provided, whereby the magnetic sheet 11 and the magnetic sheet 12 are arranged on the non-contact communication circuit board 8 such that the non-contact communication antenna 9 and the non-contact communication electronic component 10 are separated mutually.
摘要:
A voice/music determining apparatus is configured to calculate first feature parameters for discriminating between a voice signal and a musical signal; and calculate second feature parameters for discriminating between a musical signal and a background-sound-superimposed voice signal. A first score is calculated to indicate likelihood that the input audio signal is a voice signal or a musical signal as a sum of weight-multiplied first feature parameters. A second score is calculated to indicate likelihood that the input audio signal is a musical signal or a background-sound-superimposed voice signal as a sum of weight-multiplied second feature parameters. It is determined whether the input audio signal is a voice signal or a musical signal on the basis of the first score. Further, it is determined whether the musical signal is the input audio signal is a background-sound-superimposed voice signal on the basis of the second score.
摘要:
[Object] To provide a ferrule holding member for an optical receptacle or the like which can be manufactured at low cost, which has a small insertion loss, which has a convex curved surface connected to an end face of the ferrule on a tip side formed easily to have appropriate shape and properties, and which has hardly reduced coupling efficiency.[Solving Means] A ferrule holding member 3 has a transparent body 5 attached to an inner hole of a sleeve 4, and the transparent body 5 has a primary end face 5a for bringing into contact with an end face 6a of a plug ferrule 6 at a halfway position in an axial direction of the sleeve 4. The primary end face 5a of the transparent body 5 has a convex curved surface obtained through heat treatment. The convex curved surface 5a is preferably an unpolished surface, and a region with a radius of 75 μm or more centered around a shaft axis Z of the sleeve 4 at the convex curved surface 5a has a convex spherical surface. Alternatively, the transparent body 5 is directly fixed to an inner surface of the sleeve 4 through heat treatment.
摘要:
According to an aspect of the invention, there is provided an audio data processing apparatus including: a decoding unit configured to decode audio encoding data, while the decoding unit switches an M/S stereo application mode and an M/S stereo non-application mode, and thereby outputting frequency domain audio data; an inverse quantizing unit configured to inversely quantize and output the frequency domain audio data; an M/S stereo judgment unit configured to decide whether or not the M/S stereo application mode is applied to the scale factor band, and extract and output a frequency domain audio data of the S channel at a part of scale factor band to which the M/S stereo application mode is applied, and generate and output a frequency domain audio data of the S channel at a part of scale factor band to which the M/S stereo application mode is not applied.
摘要:
A glass capillary tube 1 is connected and fixed in a straight line to an optical component 5 having a substantially rectangular cross-section perpendicular to an optical axis 4a. Moreover, a top-surface side end portion 9 and a rear-surface side end portion 8 of an exterior surface 7 of the glass capillary tube 1 are positioned at the same level as the top surface and the rear surface of the exterior surface of the optical component 5 in the height-wise direction, respectively while the central axis of an insertion hole 3, which is provided in the glass capillary tube 1 and into which an optical fiber 2 is inserted and fixed, is matched with the optical axis 4a of the optical component 5.
摘要:
Disclosed is an optical collimator-use lens component including: a thin tube; a partially spherical lens that has been fixed in an inner hole of the thin tube so that an insertion portion having a predetermined length is left, is made of glass whose refractive index is approximately uniform, and has translucent spherical surfaces, whose centers of curvature are approximately the same, at both ends of a cylindrical portion of the partially spherical lens; and an adhesive that bonds the partially spherical lens to the thin tube. An axial deviation amount between a center axis of the thin tube and an optical axis of the partially spherical lens is 5 μm or less. When a capillary tube, in whose inner hole an optical fiber has been fixed and whose axial deviation amount between an outer peripheral surface of the capillary tube and a core center of an end surface of the optical fiber is 1.5 μm or less, is inserted into the insertion portion of the thin tube and the end surface of the optical fiber is fixed at a position at which a distance of the end surface to a focal point position of the partially spherical lens becomes ±40 μm or less, emission light has an emission light bend of 0.2° or less with respect to the center axis of the thin tube.
摘要:
According to one embodiment, there is provided a sound quality control apparatus, including: a characteristic parameter extractor; a speech score calculator; a music score calculator; a power value acquisition module; a first storage configured to store speech scores and music scores; a second storage configured to store power values; a power-based score corrector configured to correct a current music score or a current speech score based on a first comparison result between a current power value and past power values, a second comparison result between the current music score and past music scores and a third comparison result between the current speech score and past speech scores; and a sound quality controller configured to perform a sound quality control by using at least one of the speech score and the music score corrected by the power-based score corrector.
摘要:
A sound quality correcting apparatus includes: an input module; a feature quantity calculator; a score calculator; a modulation spectrum power calculator; a score corrector; and a signal corrector. The input module receives an input audio signal. The feature quantity calculator calculates feature quantities of the input audio signal for each of a plurality of first intervals having a certain time length. The score calculator calculates a score value for each the first interval based on the feature quantities. The modulation spectrum power calculator calculates a power value, at a certain modulation frequency, of a modulation spectrum of the input audio signal. The score corrector corrects score values in the plurality of first intervals that belong to a second interval if a power value calculated in the second interval is larger than or equal to a certain value. The signal corrector corrects the audio signal based on the score values.