A micro flame effects unit (MFEU) includes a solenoid valve, an ignition coil, and a pair of electrodes. The ignition coil is to receive a voltage to create a spark between end portions of the electrodes. The solenoid valve is to receive a voltage to release gas, the spark and the gas to create a flame effect. An example flame thrower pipe organ (FTPO) includes a set of cylindrical members with a micro flame effects unit (MFEU) located within each cylindrical member. The FTPO further includes a set of keys that provide a sound when a key of the set of keys is played. A control device causes an MFEU to release a flame effect concurrent with the sound of a corresponding key being played. The FTPO may be automated with a self-playing system.

A micro flame effects unit (MFEU) includes a solenoid valve, an ignition coil, and a pair of electrodes. The ignition coil is to receive a voltage to create a spark between end portions of the electrodes. The solenoid valve is to receive a voltage to release gas, the spark and the gas to create a flame effect. An example flame thrower pipe organ (FTPO) includes a set of cylindrical members with a micro flame effects unit (MFEU) located within each cylindrical member. The FTPO further includes a set of keys that provide a sound when a key of the set of keys is played. A control device causes an MFEU to release a flame effect concurrent with the sound of a corresponding key being played. The FTPO may be automated with a self-playing system.

The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

Invention is an attachment to any stringed instrument with a neck and fretboard/fingerboard that enables the stringed instrument to play itself. The invention comprises of a picking system, a fretting system, and an interface that allows a user to select what music they would like to play on the stringed instrument. The picking and fretting systems are releasably attached to the stringed instrument. Permanent modifications to the stringed instrument are not required to install the automated string player attachments.

The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

A keyboard musical instrument includes a string-striking mechanism (hammer), driver, sound receiver, analyzer, and adjuster. The hammer strikes a string responsive to a change in position of an associated key of keyboard. The driver drives the hammer under a driving condition in accordance with control data. The sound receiver generates an audio signal corresponding to a sound occurring in the vicinity of the hammer. The analyzer detects the hammer striking a string by analyzing the audio signal generated when the hammer operates. The adjuster adjusts the control data in accordance with results of the analysis. The analyzer detects hammer striking a string in accordance with an intensity of the audio signal occurring within a search range, which has a predetermined relationship along a time axis with regard to a time at which the hammer commences operation.

A musical-performance-information transmission method using a first instrument and a second instrument, wherein the first instrument produces sounds in accordance with a user's musical performance and generates musical-performance data in accordance with the produced sounds and the second instrument produces sounds by receiving the musical performance data via a communication means. In the musical-performance-information transmission method, a mixed-sound signal is generated in accordance with a mixture of sounds produced by the first instrument and sounds that are different from the sounds produced by the first instrument, a reference signal is generated in accordance with the sounds produced by the first instrument, and on the basis of the mixed-sound signal and the reference signal, the reference signal is removed from the mixed-sound signal, generating a separated signal, and sound is emitted on the basis of said separated signal.