43 results about "Mediant" patented technology

In an automatic player piano, hammer sensors monitor associated hammers so as to report current positions on the hammer trajectories, and a data processor analyzes the hammer motion for producing pieces of music data representative of the performance on the acoustic piano; the aged deterioration is influential in the relative position between the hammers and the hammer sensors so that the data processor rectifies the relative position, the data processor determines the turning point at which the hammer changes the direction of motion, and compares the current value indicating the turning point with the previous value; if the difference is found, the data processor adds a value of deflection of strings to the current value so as to determine and memorizes the true value of the turning point; the data processor analyzes the hammer motion on the basis of the true value so that the music data are reliable.

A conically shaped, keyless plastic wind instrument with eight holes, consisting of a single body and a detachable a mouthpiece. The instrument is fully chromatic and capable of playing in any of the traditional twelve keys of Western music-producing notes through a player's vibration of a single reed affixed to a soprano saxophone type mouthpiece, and through the opening or closing of a plurality of tone holes along its length by use of the fingers. The instrument is one of a family of keyless saxophones which can be pitched in the alto, soprano, and soprano range by the lengthening or shortening of the body and by changing the location of the eight finger holes. By opening or closing the finger holes, the standing sound wave-created inside the instrument by the player's vibration of the reed affixed to the mouthpiece-is intersected at locations along the length of the body producing a vibration at a determined musical pitch, the scale of which is tuned to A=440, standard concert tuning. All members of this instrument family have the same fingering patterns, which are based on recorder (or vertical flute) fingerings.

Disclosed is a speaker system for installation within a ceiling, wall, or other structure. The speaker system includes at least one pair of woofers housed by a woofer housing. The two woofers of each pair are oppositely arranged relative to one another so that the vibrations generated by each during operation are essentially neutralized or eliminated. Attached to the woofer housing is a mounting frame to which is attached a driver, such as a tweeter, a combination tweeter and midrange, or another woofer. This driver is perpendicularly arranged to a woofer pair. When installed, the woofers are positioned within the ceiling or other structure in which the system is installed.

A speaker assembly includes a speaker housing with a closed top wall, an opposed open end and first, second, third and fourth sidewalls extending downwardly from the closed top wall. The closed top wall is substantially planar and forms a support surface. First and second midrange drivers and first and second high frequency drivers are mounted within the housing, wherein the first midrange driver and the first tweeter are mirror images of second midrange driver and the second tweeter. A first support bracket supports the first midrange driver and first tweeter along a first side of the closed top wall adjacent the first sidewall of the speaker housing. The first support bracket includes a planar support surface which is obliquely oriented relative to a plane in which the closed top wall lies. A second support bracket supports the second midrange driver and the second tweeter along a second side of the closed top wall adjacent the third sidewall of the speaker housing. The first support bracket includes a planar support surface which is obliquely oriented relative to the plane in which the closed top wall lies.

A reed-actuated animal call having a double-reed assembly and triple-reed assembly. The double-reed assembly has a short reed positioned atop a long reed positioned atop a sound board. An air passage is formed in the top of the sound board underneath the long reed. The long reed extends a determined length beyond the end of the short reed, the short reed constraining the long reed to enable the rapid activation of the long reed. The triple-reed assembly has an additional mid-length reed positioned between the short and long reeds. The long reed extends a determined length beyond the end of the mid-length reed, the mid-length reed extends a determined length beyond the short reed above the sound board, and the mid-length and short reeds constrain the long reed so as to enable the rapid activation of the long reed with a different resonance than the double-reed assembly.

The invention provides a sound amplification co-planar symmetric horn which comprises a middle-pitch horn, a high-pitch horn, a horn front fixing rack, a rear side installing platform, a median sealing cover, a high-pitch driver, a vertical angle adjustor, an angle adjusting bolt, a horn rotation shaft bolt, a horn rear supporting rack, a base, a middle-pitch driver, a horizontal angle adjustor and an angle adjusting slide rail. The sound amplification co-planar symmetric horn has the following advantages that the sound amplification co-planar symmetric horn is convenient to install, simple in operation and high in practicability; middle-pitch and high-pitch co-planar symmetric design is adopted, so that the sound filed evenness of a coverage region is effectively improved; the horn has a middle-pitch and high-pitch co-planar characteristic, phase distortion is remarkably reduced, acoustic image positioning accuracy is improved, and the quality of amplified sound is improved; horizontal and vertical bidirectional angle adjustment can be achieved, and an application range is widened.

The invention provides a loudspeaker, which includes a speaker frame, the mouth of which is provided with a pilot frequency line passing the center of the mouth. The pilot frequency line includes threThe invention provides a loudspeaker, which includes a speaker frame, the mouth of which is provided with a pilot frequency line passing the center of the mouth. The pilot frequency line includes three helical sections sequentially connected on the same plane. The three helical sections are all of the structure of a flat spiral line and are further respectively arranged in a bass area, a mediant ae helical sections sequentially connected on the same plane. The three helical sections are all of the structure of a flat spiral line and are further respectively arranged in a bass area, a mediant area and a high pitch area of the mouth. The invention also provides a sound box, in which the loudspeaker of the proposal is arranged. By connecting the pilot frequency line in the loudspeaker, the inrea and a high pitch area of the mouth. The invention also provides a sound box, in which the loudspeaker of the proposal is arranged. By connecting the pilot frequency line in the loudspeaker, the invention realizes the effect of causing the high pitch, mediant and bass of music out from the loudspeaker to respectively have a convergence point on the pilot frequency line and improves the tone quavention realizes the effect of causing the high pitch, mediant and bass of music out from the loudspeaker to respectively have a convergence point on the pilot frequency line and improves the tone quality of the loudspeaker. Besides, through the arrangement of the loudspeaker in the sound box, the invention realizes the sound concentration of outside played music of the sound box and improves thelity of the loudspeaker. Besides, through the arrangement of the loudspeaker in the sound box, the invention realizes the sound concentration of outside played music of the sound box and improves thetone quality of the sound box.tone quality of the sound box.