A megaphone device for amplifying sound is provided. The megaphone device comprises a flat foldable sheet having an inner surface, an outer surface, a mouth edge, a bell edge, a first side edge, and a second side edge. An adhesive strip is positioned along and nearingly adjacent the first side edge. A plurality of breakable fold over tabs is formed along the mouth edge with the fold over tabs movable in a general direction toward the outer surface to a position substantially perpendicular to the foldable sheet. The foldable sheet is rollable into a substantial cone shape forming a mouth portion along the mouth edge and a bell portion along the bell edge with the first side edge contacting the second side edge and the adhesive strip maintaining the substantial cone shape. Sounds projected through the mouth portion travel through a widening interior, and exit the bell portion at an increased volume.

A megaphone device for amplifying sound is provided. The megaphone device comprises a flat foldable sheet having an inner surface, an outer surface, a mouth edge, a bell edge, a first side edge, and a second side edge. An adhesive strip is positioned along and nearingly adjacent the first side edge. A plurality of breakable fold over tabs is formed along the mouth edge with the fold over tabs movable in a general direction toward the outer surface to a position substantially perpendicular to the foldable sheet. The foldable sheet is rollable into a substantial cone shape forming a mouth portion along the mouth edge and a bell portion along the bell edge with the first side edge contacting the second side edge and the adhesive strip maintaining the substantial cone shape. Sounds projected through the mouth portion travel through a widening interior, and exit the bell portion at an increased volume.

Marine seismic data recording employs airgun sources which are usually arrays of airguns of various sizes towed behind a seismic vessel. The seismic airgun pulses are omni-directional except for some cancellation of horizontal waves by the geometry of the array. The Airgun Pulse Amplifier Cone is an invention that can be used with a commercially available airgun mounted at or near the top of the cone which will increase the amplitude of the down-going pulses and reduce the amplitude of the horizontally traveling pulses. Multiple airgun cones can be constructed into a steel box-structure for towing, to provide the tuning benefits of airgun arrays and the box itself. Using the Airgun Pulse Amplifier Cone can reduce the impact on marine life and the environment near a seismic survey and can also result in lower airgun volume requirements and lower airgun costs.

Marine seismic data recording employs airgun sources which are usually arrays of airguns of various sizes towed behind a seismic vessel. The seismic airgun pulses are omni-directional except for some cancellation of horizontal waves by the geometry of the array. The Airgun Pulse Amplifier Cone is an invention that can be used with a commercially available airgun mounted at or near the top of the cone which will increase the amplitude of the down-going pulses and reduce the amplitude of the horizontally traveling pulses. Multiple airgun cones can be constructed into a steel box-structure for towing, to provide the tuning benefits of airgun arrays and the box itself. Using the Airgun Pulse Amplifier Cone can reduce the impact on marine life and the environment near a seismic survey and can also result in lower airgun volume requirements and lower airgun costs.

A one-piece diaphragm and ring for a stethoscope chestpiece is disclosed herein. The one-piece diaphragm and ring includes a diaphragm portion having a flat disk shape; and a ring portion connected to an outer periphery of the diaphragm portion, the ring portion being integrally formed with the diaphragm portion, and the ring portion configured to be attached to a rim of a chestpiece body portion. A chestpiece of a stethoscope that includes the one-piece diaphragm and ring is also disclosed herein.

An audio enhancing apparatus for electronic media devices including a support base having a rectangular rear side, an open front side, an open top side, a bottom side perpendicularly disposed to the rear side, and a pair of sidewalls. Each of the pair of sidewalls has a right triangulated bottom portion and an elongated rectangular top portion extended upwards from the bottom portion. Each of a right bracket and a left bracket of a pair of brackets is attached to the top portion of each of a right sidewall and a left sidewall, respectively, of the pair of sidewalls. The pair of brackets is configured to removably secure a bottom section of a portable electronic device within the support base.

A movable, hollow cubical housing for enhancing the sound output of a mobile, wireless speaker. A plurality of apertures being provided in the side walls of the housing. The housing being provided with sound dampening material on the interior of the housing.

An audio projection device having additional features or elements connected therewith. One or more lights or other illuminating elements may be connected with the audio projection device. The one or more lights or other illuminating elements may be disposed so as to illuminate through a portion of the audio projection device. One or more audible or other moveable elements may be connected or contained within a portion of the audio projection device. The one or more audible or moveable elements may be beads, or other spherical or other shaped components (e.g., rigid components) that are configured to make a sound (e.g., rattle) and/or be visible when they make contact with one another and/or other portions of the audio projection device. The audio projection device may be fully or partially transparent such that the one or more audible or moveable elements are viewable through material(s) of the audio projection device.

An audio projection device having additional features or elements connected therewith. One or more lights or other illuminating elements may be connected with the audio projection device. The one or more lights or other illuminating elements may be disposed so as to illuminate through a portion of the audio projection device. One or more audible or other moveable elements may be connected or contained within a portion of the audio projection device. The one or more audible or moveable elements may be beads, or other spherical or other shaped components (e.g., rigid components) that are configured to make a sound (e.g., rattle) and/or be visible when they make contact with one another and/or other portions of the audio projection device. The audio projection device may be fully or partially transparent such that the one or more audible or moveable elements are viewable through material(s) of the audio projection device.

The present invention relates to a detachable, portable resonance box (1) for providing acoustic stereo sound from stringed instruments and it comprises a primary sound transmission rod (2) which receives and transmits sound vibrations by contacting directly or by means of a connecting apparatus (11) to any area on the body and neck of the stringed instruments, one to four secondary sound transmission rods (3) which are connected to the primary sound transmission rod (2) as a branch or projected downward independently from the primary sound transmission rod (2) and directly contacted to the relevant region of the stringed instrument (13), a primary resonance zone (4), one to four secondary resonance zones (5), a cap (6), a primary resonance cavity (9), one to four secondary resonance cavities (10), a primary sound routing hole (7).