The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.

The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.

Systems for a touchless musical instrument, where the touchless musical instrument includes: multiple sensors, where each sensor detects a presence of an object within a predetermined distance of the sensor; an audio speaker; a processor electrically connected to the sensors and the audio speaker; and executes instructions on the process to: receive, from the plurality of sensors, an object detection signal indicating a location of the object with respect to the plurality of sensors; generate an audio output signal based on the location of the object indicated by the object detection signal; and generate an audible output from the audio speaker by transmitting the audio output signal to the audio speaker.

A switch device (4, 5) includes: a cap (7) including, on a top surface (711), a first region (71a) and a second region (71b) corresponding to a position where an internal light (133) is disposed and being thinner than the first region (71a); and a switch (61, 62) to which the cap (7) is mounted.

Systems and methods are disclosed for generating color sets based on musical concepts of pitch intervals and harmony. Color sets are derived via a music-to-hue process which analyzes musical pitch data associated with musical input to determine pitch intervals included in the music. Pitch interval angles associated with the pitch intervals are applied to a tuned hue index to identify hue note ordered within the index which are separated by a hue interval angle similar to the pitch angle associated with the analyzed pitch data. The systems and methods provide for the creation of color sets which are analogous to musical chords in that they include multiple hue notes selected based on hue interval angles derived from musical interval angles associated with the received musical input.

A method for tuning a managed pressure drilling system comprising a variable orifice choke to control fluid flow from a drilling well includes (a) characterizing change in flow rate through the choke with respect to choke opening at a substantially constant pressure drop; (b) characterizing change in fluid pressure in the well with respect to change in choke opening at a substantially constant flow rate into the well; (c) characterizing a response time of pressure in the well to changes in the choke opening, a delay time of pressure response after a change in choke opening and a back pressure applied to the well with respect to choke opening. The characterizations in at least one of (a) and (b), and the characterization in (c) are used as control parameters for a proportional integral differential controller having as output the choke opening and as input the fluid pressure in the well before the choke.

In one aspect, provided herein is a device for notating a musical composition. The device, in various implementations, is structured so as to be less laborious to notate, easier to read, and more simple to employ in notating, reading, and/or playing the music of a given composition to be composed and/or played. Accordingly, in its most basic form, the device herein disclosed includes a template, upon which template one or more symbols may be notated, where such notation is configured in a manner that more closely relates the note to be played with the mechanical action needed to be performed so as to play that note, such as on an instrument to be or being played.

An electronic equipment is provided. The electronic equipment includes: a content acquisition part for acquiring a content including a non-purchased content, which is a content that has not been purchased; a usage part for using the non-purchased content acquired by the content acquisition part regardless of whether the content has been purchased or not; and a prohibition part for prohibiting the usage part from using a non-purchased content that is the non-purchased content not being purchased after being acquired by the content acquisition part when a predetermined operation is performed.

A system is described for an enhanced bow piece of a stringed musical instrument. The enhancement includes a visual display element attached to the bow. The appearance of the display changes in response to bow motion, bow position, and one or more user-supplied inputs (e.g. buttons). The system can be entirely self-contained and used as a normal instrument bow, providing a light-up/responsive effect while the user plays their instrument in an otherwise normal way. There is some capability for multiple self-contained units to be locally synchronized, providing group-based visualizations. Alternatively, these devices can be monitored and controlled by an external control system.

A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.