Abstract: Systems and methods for determining parameter adjustments for a capture of audio are disclosed. The systems and methods includes processing circuitry configured to access at least one energy map that corresponds to one or more audio streams. The processing circuitry may then determine, from the at least one energy map, a parameter adjustment with respect to at least one audio element. The parameter adjustment may be configured to adjust the capture of audio by the at least one audio element. In addition, the process circuitry may be configured to output an indication indicating the parameter adjustment with respect to the at least one audio element.

Abstract: A bullet velocity enhancing rifle attachment assembly a sleeve having a first end, a second end and a perimeter wall. The sleeve has an aperture therein extending into the first end and outwardly of the second end. The aperture is defined by an inner wall including a first portion adjacent to the first end, an second portion adjacent to the second end and a central portion positioned between the first and second portions. The central portion has an toroidal shape. A coupler attached to the second end of the sleeve is releasably engageable with a gun barrel to align the aperture with the gun barrel. Pressure from a front side of a bullet traveling down the gun barrel is forced into the central portion to travel around the toroidal shape and back into the aperture toward the first portion, behind the bullet, as the bullet travels through the central portion.