Abstract: An audio mixer (20) include a chassis (22) adapted to receive a docking tray assembly (24), which in turn is adapted to receive a computing device (26). The computing device functions to operate and control the audio mixer (20), and to this end includes a touch screen display (28). The docking tray assembly (24) includes formed tray (110) and, optionally, an adapter configured as a formed insert (112) that nests with the tray (110) to dock a computing device of a configuration different from the computing device docked directly with the tray (110).

Abstract: An audio mixer (20) include a chassis (22) adapted to receive a docking tray assembly (24), which in turn is adapted to receive a computing device (26). The computing device functions to operate and control the audio mixer (20), and to this end includes a touch screen display (28). The docking tray assembly (24) includes formed tray (110) and, optionally, an adapter configured as a formed insert (112) that nests with the tray (110) to dock a computing device of a configuration different from the computing device docked directly with the tray (110).

Abstract: A method is provided for creating a series of digital signal processing (DSP) filters to improve the transient response of a loudspeaker, wherein the loudspeaker is formed of multiple components. The method includes generally six steps. The first step involves identifying a substantially linear, time-invariant, and spatially-consistent loudspeaker mechanism causing transient response distortion. The second step involves characterizing the identified mechanism. The third step involves determining the characterized mechanism's two-port response. The fourth step involves establishing a target response for the characterized mechanism. The fifth step involves calculating an ideal filter to achieve the target response. The sixth step involves designing a cost-reduced filter based on the ideal filter.

Abstract: A loudspeaker is provided for receiving an electrical signal and transmitting an acoustic signal through a transmission medium. The system includes generally two elements: a coaxial transducer and an acoustic transformer. The coaxial transducer includes a high-frequency driver and a mid-frequency driver that are coaxially arranged. The acoustic transformer is acoustically coupled to the coaxial transducer and includes an initial horn section that expands from a first end to a second end in a direction away from the coaxial transducer. The initial horn section defines a plurality of openings therethrough, such that the initial horn section is acoustically opaque to high-frequency acoustic signals to thereby function as a waveguide for the high-frequency acoustic signals, while it is acoustically transparent to mid-frequency acoustic signals.

Abstract: An analog-digital interface device is provided, which is configured to be housed within or removably coupled with an analog mixer, to thereby form a digital-output analog mixer. The analog-digital interface device includes analog-digital conversion circuitry and digital transmission circuitry that convert analog audio from the analog mixer to digital format for transmission along a digital transport interface to an external digital computing device, such as a PC or MAC computer. In one embodiment, the analog audio can be tapped from any one or more points along a signal path of the analog mixer and sent to the analog-digital interface device. In another embodiment, the analog-digital interface device is further configured to receive digital signals back from the external digital computing device, convert them to analog signals, and return them to the analog mixer at any one or more points along a signal path of the analog mixer.

Abstract: A digital recording interface device is provided, which consists of a base unit and a remote unit that are removably coupled to each other. The base unit includes one or more input connections configured to be coupled to one or more external analog audio sources, such as microphones, musical instruments, mixers, amplifiers, etc. The base unit also includes one or more output connections configured to be coupled to one or more external audio output devices, such as speakers, headphones, etc. Typically, the base unit remains connected to various audio sources and audio output devices. The remote unit includes analog-digital conversion circuitry that converts analog audio received from the base unit to digital audio, and digital transmission circuitry that transmits the digital audio along a digital transport interface to an external digital computing device, in which the digital audio can be recorded or otherwise processed.