Abstract: Systems and methods for identifying the most impactful moments or segments of music, which are those most likely to elicit a chills effect in a human listener. A digital music signal is processed using two or more objective processing metrics that measure acoustic features known to be able to elicit the chills effect. Individual detection events are identified in the output of each metric based on the output being above or below thresholds relative to the overall output. A combination algorithm aggregates concurrent detection events to generate a continuous concurrence data set of the number of concurrent detection events during the music signal, which can be calculated per beat. A phrase detection algorithm can identify impactful segments of the music based on at least one of peaks, peak-proximity, and a moving average of the continuous concurrence data.

Abstract: In an un-tuned state, the strings of a string instrument are excited, and a standard adjustment factor is determined for each string. When a pitch is generated as a result of a string being strummed (e.g., during normal playing of the instrument), the pitch generated by the string is adjusted by the standard adjustment factor and an intonation adjustment factor that accounts for intonation errors. An adjusted pitch is output that is in-tune and has accurate intonation.

Abstract: In an un-tuned state, the strings of a string instrument are excited, and a standard adjustment factor is determined for each string. When a pitch is generated as a result of a string being strummed (e.g., during normal playing of the instrument), the pitch generated by the string is adjusted by the standard adjustment factor and an intonation adjustment factor that accounts for intonation errors. An adjusted pitch is output that is in-tune and has accurate intonation.

Abstract: An architectural speaker assembly includes a speaker supported within the speaker enclosure of a mounting fixture. A grill is provided to conceal the speaker. A grill support is configured to support the grill substantially flush with a facing ring of the mounting fixture to blend into the surrounding ceiling or wall. The grill support includes a concave wall that surrounds the speaker. A number of bosses project form the wall, each boss supporting a permanent magnet that magnetically engages the grill to firmly hold it on the grill support.

Abstract: An architectural speaker assembly includes a speaker supported within the speaker enclosure of a mounting fixture. A grill is provided to conceal the speaker. A grill support is configured to support the grill substantially flush with a facing ring of the mounting fixture to blend into the surrounding ceiling or wall. The grill support includes a concave wall that surrounds the speaker. A number of bosses project form the wall, each boss supporting a permanent magnet that magnetically engages the grill to firmly hold it on the grill support.

Abstract: A subwoofer having a novel component geometry that permits large voice coils and high efficiency heat transfer capability. The subwoofer comprises a frame having an outside and an inside, a central portion, radial heat sink fins, lower ventilation apertures, and a bottom portion having a bottom vent aperture. A motor unit comprising a case and a pole unit, the case having lower ventilation apertures and the pole unit having a cylindrical portion having a center aperture, wherein the cylindrical portion of the pole unit is of a diameter less than the diameter of the case, defining a first chamber area. The lower ventilation apertures of the frame, and the lower ventilation apertures of the motor unit are aligned to allow air to flow from the outside of the subwoofer into the first chamber area.

Abstract: A subwoofer having a novel component geometry that permits large voice coils and high efficiency heat transfer capability. The subwoofer comprises a frame having an outside and an inside, a central portion, radial heat sink fins, lower ventilation apertures, and a bottom portion having a bottom vent aperture. A motor unit comprising a case and a pole unit, the case having lower ventilation apertures and the pole unit having a cylindrical portion having a center aperture, wherein the cylindrical portion of the pole unit is of a diameter less than the diameter of the case, defining a first chamber area. The lower ventilation apertures of the frame, and the lower ventilation apertures of the motor unit are aligned to allow air to flow from the outside of the subwoofer into the first chamber area.

Abstract: A device and method is disclosed to correct intonation errors and generate vibrato in solo instruments and vocal performances in real time. The device determines the pitch of a musical note produced by voice or instrument and shifts the pitch of that note to produce a very high quality, high fidelity output. The device includes a pitch detector that automatically recognizes the pitch of musical notes quickly. The detected pitch is then used as an input to a pitch corrector that converts the pitch of the input to an output with a desired pitch. The corrected musical note is then in tune with the pitch standard. The device and method employ a microprocessor that samples the signal from a musical instrument or voice at regular intervals using an analog-to-digital converter and then utilizes data derived from an auto-correlation function of the waveform to continuously determine the period of the waveform. The period of the waveform is then compared to a desired period or periods (such as found in a scale).

Abstract: A system for selecting and reproducing audio, video, or other humanly perceptible programs comprises a program source providing a multiplicity of program signals, a plurality of stations at which individual programs may be reproduced, a switching mechanism for selectively connecting selected program signals to the reproducing device at each station, and a microprocessor control unit operable upon user generated commands from each of the stations for controlling the switching mechanism in accordance with a user programmable set of instructions.