A stethoscope includes a headset including a first eartube terminating in a first earpiece and a second eartube terminating in a second earpiece, and a chestpiece having a diaphragm. The stethoscope further includes flexible acoustic tubing having a first tubing segment connected to the headset and a second tubing segment connected to the chestpiece. The first tubing segment is manually disconnectable from the second tubing segment, and the first tubing segment is manually connectable to the second tubing segment to align and seal the first and second tubing segments and form an acoustic passageway extending from the chestpiece through the first and second tubing segments and the first and second eartubes to the first and second earpieces. Optionally, the flexible acoustic tubing with the disconnectable and connectable segments may be provided as a replacement component for a stethoscope.

A stethoscope includes a headset including a first eartube terminating in a first earpiece and a second eartube terminating in a second earpiece, and a chestpiece having a diaphragm. The stethoscope further includes flexible acoustic tubing having a first tubing segment connected to the headset and a second tubing segment connected to the chestpiece. The first tubing segment is manually disconnectable from the second tubing segment, and the first tubing segment is manually connectable to the second tubing segment to align and seal the first and second tubing segments and form an acoustic passageway extending from the chestpiece through the first and second tubing segments and the first and second eartubes to the first and second earpieces. Optionally, the flexible acoustic tubing with the disconnectable and connectable segments may be provided as a replacement component for a stethoscope.

An acoustic component, an acoustic apparatus and an acoustic system are provided. The acoustic component has a pipe, a slot configured on the pipe that has an elongation direction along an elongation direction of the pipe, and a horn extending from a first end of the pipe. The acoustic apparatus includes the acoustic component and further includes an acoustic driver acoustically coupled with a second end of the pipe to radiate acoustic energy carried in waves into the pipe. The acoustic energy carried in waves is radiated to the environment through the slot and the horn.

An acoustic component, an acoustic apparatus and an acoustic system are provided. The acoustic component has a pipe, a slot configured on the pipe that has an elongation direction along an elongation direction of the pipe, and a horn extending from a first end of the pipe. The acoustic apparatus includes the acoustic component and further includes an acoustic driver acoustically coupled with a second end of the pipe to radiate acoustic energy carried in waves into the pipe. The acoustic energy carried in waves is radiated to the environment through the slot and the horn.

An acoustic meta material (AMM) spiral device for passive amplification of sound is described. The AMM amplifier device employs at least one deep sub-wavelength spiral design with high refraction index, based on an exponential spiral shape. The AMM spiral amplifier is used to focus on low frequency sound amplification and to cover broadband frequency range. Sound emanating from a speaker travels into a spiral channel until reaching the apex of the spiral. When twin spirals are used, the sound then enters a second spiral for radiating into open air.

An acoustic meta material (AMM) spiral device for passive amplification of sound is described. The AMM amplifier device employs at least one deep sub-wavelength spiral design with high refraction index, based on an exponential spiral shape. The AMM spiral amplifier is used to focus on low frequency sound amplification and to cover broadband frequency range. Sound emanating from a speaker travels into a spiral channel until reaching the apex of the spiral. When twin spirals are used, the sound then enters a second spiral for radiating into open air.

The present invention relates to an apparatus and a method for collecting unspecific and various sounds, occurring in the field of crime prevention, guard, or the like, in a wide area by means of a microphone without any loss, and provides means for an apparatus and a method for collection using a single microphone and for an apparatus and a method for collection using multiple microphones.

The present invention relates to an apparatus and a method for collecting unspecific and various sounds, occurring in the field of crime prevention, guard, or the like, in a wide area by means of a microphone without any loss, and provides means for an apparatus and a method for collection using a single microphone and for an apparatus and a method for collection using multiple microphones.

Disclosed herein are implementations of acoustic metamaterial structures and geometric configurations of acoustic metamaterial structures which produce sound amplification or cancellation. An acoustic metamaterial device for using with a sound source includes a plurality of fins, where each fin is made from a very dense material with respect to air which creates the anisotropic properties of the acoustic metamaterial device, where each fin has a length dimension, a width dimension, and a thickness dimension, the width and length dimension being equal and substantially perpendicular to the direction of sound wave propagation from the sound source, where each fin is sized different from other fins along the width and length dimension, and where the plurality of fins are interconnected such that planes formed by the width and length dimension of each fin faces perpendicular to the sound wave propagation direction from the sound source.

Disclosed herein are implementations of acoustic metamaterial structures and geometric configurations of acoustic metamaterial structures which produce sound amplification or cancellation. An acoustic metamaterial device for using with a sound source includes a plurality of fins, where each fin is made from a very dense material with respect to air which creates the anisotropic properties of the acoustic metamaterial device, where each fin has a length dimension, a width dimension, and a thickness dimension, the width and length dimension being equal and substantially perpendicular to the direction of sound wave propagation from the sound source, where each fin is sized different from other fins along the width and length dimension, and where the plurality of fins are interconnected such that planes formed by the width and length dimension of each fin faces perpendicular to the sound wave propagation direction from the sound source.