Abstract: An acoustic tube that can be manufactured simply and can also be reduced in size easily is obtained. By using the acoustic tube, a directional microphone which has a simple structure and can be reduced in size easily is obtained. In an integrally molded acoustic tube, an acoustic resistance material arranged on the inner circumferential surface of the acoustic tube is integrated to the acoustic tube by molding of the acoustic tube. It is preferable to select resin as the material of the acoustic tube and resin mesh as that of the acoustic resistance material. It is preferable that the acoustic tube have a slit-like acoustic resistance part and the acoustic resistance material be present in the acoustic resistance part. It is preferable to configure a directional microphone by using the acoustic tube.

Abstract: A pop reduction filter can be properly replaced with a simple operation according to the use of a microphone. A wind shield including a shield body 20 made of an open-cell foam with a microphone insertion hole 30, the wind shield being directly put on a microphone M through the microphone insertion hole 30, the wind shield including a disk-like pop filter 40 detachably housed in the microphone insertion hole 30 so as to be orthogonal to the 0-degree direction sound pickup axis of the microphone M, the pop filter 40 being made of an open-cell foam different in foam density from the open-cell foam of the shield body 20.

Abstract: There is provided a boundary microphone especially suitable for outdoor applications, which has strong waterproof and high wind noise resistance. In a boundary microphone in which a microphone case 1 includes a flat base portion 10 the upper surface side of which is open, and a microphone cover 20 having a large number of openings, which is attached to the base portion 10 so as to cover the upper surface of the base portion 10, and a microphone unit 31 is housed in the microphone case 1, a pile 23 is flocked by electrostatic flocking over the whole surface of at least the outer surface of the microphone cover 20 including a connecting portion 20a between the microphone cover 20 and the base portion 10, and the pile 23 is subjected to water repellent processing.

Abstract: An acoustic tube that can be manufactured simply and can also be reduced in size easily is obtained. By using the acoustic tube, a directional microphone which has a simple structure and can be reduced in size easily is obtained. In an integrally molded acoustic tube, an acoustic resistance material arranged on the inner circumferential surface of the acoustic tube is integrated to the acoustic tube by molding of the acoustic tube. It is preferable to select resin as the material of the acoustic tube and resin mesh as that of the acoustic resistance material. It is preferable that the acoustic tube have a slit-like acoustic resistance part and the acoustic resistance material be present in the acoustic resistance part. It is preferable to configure a directional microphone by using the acoustic tube.

Abstract: There is provided a boundary microphone especially suitable for outdoor applications, which has strong waterproof and high wind noise resistance. In a boundary microphone in which a microphone case 1 includes a flat base portion 10 the upper surface side of which is open, and a microphone cover 20 having a large number of openings, which is attached to the base portion 10 so as to cover the upper surface of the base portion 10, and a microphone unit 31 is housed in the microphone case 1, a pile 23 is flocked by electrostatic flocking over the whole surface of at least the outer surface of the microphone cover 20 including a connecting portion 20a between the microphone cover 20 and the base portion 10, and the pile 23 is subjected to water repellent processing.

Abstract: A pop reduction filter can be properly replaced with a simple operation according to the use of a microphone. A wind shield including a shield body 20 made of an open-cell foam with a microphone insertion hole 30, the wind shield being directly put on a microphone M through the microphone insertion hole 30, the wind shield including a disk-like pop filter 40 detachably housed in the microphone insertion hole 30 so as to be orthogonal to the 0-degree direction sound pickup axis of the microphone M, the pop filter 40 being made of an open-cell foam different in foam density from the open-cell foam of the shield body 20.

Abstract: The present invention provides a Dracula clip type of microphone holder, which enables further increase in the safe mounting during sticking or drawing of the pins on clothes of its wearer. The improved microphone holder comprises at least one microphone, a holder base member having front and back faces, a holder device slidably mounted on the front face of the holder base member for holding the microphone, and a hook pin having pin(s) on the side of the back face of the holder base member, the hook pin being rotatably supported at the approximate proximal end of the holder base member, in the direction of crossing the front or back face of the holder base member, such that the pins are extended from or retracted to the back face of the holder base member through slid movement of the holder device on the front face of the holder base member.

Abstract: The present invention provides a Dracula clip type of microphone holder, which enables further increase in the safe mounting during sticking or drawing of the pins on clothes of its wearer. The improved microphone holder comprises at least one microphone, a holder base member having front and back faces, a holder device slidably mounted on the front face of the holder base member for holding the microphone, and a hook pin having pin(s) on the side of the back face of the holder base member, the hook pin being rotatably supported at the approximate proximal end of the holder base member, in the direction of crossing the front or back face of the holder base member, such that the pins are extended from or retracted to the back face of the holder base member through slid movement of the holder device on the front face of the holder base member.

Abstract: A microphone holder instrument for removably holding a microphone hung from the upper thing such as a ceiling, and a combination of at least the pair of microphone holder instruments and a support plate for supporting said microphone holder instruments. The microphone holder instrument comprises a plate member formed in a generally boomerang shape with its sides that comprise respective first and second arms, a microphone holder unit provided to the first arm, and a plurality of cutout portions provided to the second arm for making arrangement in the sigmoid curve and lock of a microphone cord therebetween for prevention of the escape from the second arm. The support plate has at least one locking part for connecting said microphone holder instrument thereto such that the microphone is oriented to a predetermined direction.

Abstract: A microphone holder instrument for removably holding a microphone hung from the upper thing such as a ceiling, and a combination of at least the pair of microphone holder instruments and a support plate for supporting said microphone holder instruments. The microphone holder instrument comprises a plate member formed in a generally boomerang shape with its sides that comprise respective first and second arms, a microphone holder unit provided to the first arm, and a plurality of cutout portions provided to the second arm for making arrangement in the sigmoid curve and lock of a microphone cord therebetween for prevention of the escape from the second arm. The support plate has at least one locking part for connecting said microphone holder instrument thereto such that the microphone is oriented to a predetermined direction.

Abstract: A waterproof microphone according to the present invention includes a case; an acoustic terminal unit having a front acoustic terminal and a rear acoustic terminal to be accommodated in the case through a unit holder and a unit case; waterproof films in the case for covering the front acoustic terminal and the rear acoustic terminal of the acoustic terminal unit, respectively; the waterproof films being deformed at a predetermined water pressure; and restraining means provided between said acoustic terminal unit and said waterproof films for restraining the deformation of each said waterproof films, so that the thickness and shape of the waterproof films can be each adjusted.