5 results about "Piano tuning" patented technology

The utility model discloses a piano tuning device, which comprises a shell and a sound pick-up, and can accurately identify the deviation between the current intonation state of the piano and the preset standard intonation by using the sound pick-up to capture sound signals sent by the piano and accurately analyzing the sound signals through a controller. Therefore, a user can control the motor conveniently, it is ensured that each string can reach the ideal vibration frequency, and then the tuning efficiency of the piano is improved. A user can flexibly select a proper adjusting head according to the size and the shape of a piano tuning peg nail, a proper adjusting assembly is easily rotated by sliding a T-shaped sliding block on a shell cover, in addition, the tedious process of traditional manual tuning is simplified through a motor-driven adjusting mode, and the operation difficulty is reduced; and through the design of the anti-falling unit, the phenomena of thread falling and slipping between the adjusting head and the threaded rod on the connecting seat in the adjusting process are effectively avoided, and the stability and the reliability in the adjusting process are ensured.

The invention discloses a piano tuning auxiliary positioning system, belongs to the technical field of musical instrument tuning, and aims to solve the problem of positioning deviation caused by neglecting string tension dynamic evolution and environmental disturbance in the prior art. The system comprises a tuning peg state sensing module, a string tension evolution monitoring module, a central cooperative controller, a man-machine interaction guide module and an audio feedback verification module. Through fusion of triple information of tuning peg angular displacement, tension steady state discrimination and acoustic frequency feedback, staged accurate guidance and dynamic decision are realized. The system rapidly approaches the target in the coarse tuning stage, premature termination is avoided in the fine tuning stage according to the tension steady state, the tuning accuracy is ensured through audio closed-loop verification, and the tuning precision, efficiency and robustness are remarkably improved.

The utility model relates to the technical field of piano tuning equipment, and discloses a mechanical piano tuner which comprises a connecting rod, a telescopic mechanism is arranged on the periphery of the connecting rod, a fine tuning mechanism is arranged in the connecting rod, the left end of the connecting rod is rotatably connected with a sleeve, and the fine tuning mechanism is connected with the sleeve. The interior of the handle is slidably connected to the periphery of the left side of the connecting rod, the periphery of the limiting pipe is slidably connected to the interior of the connecting rod, one side of the adjusting ring is rotatably connected to the right end of the handle, and the interior of the adjusting ring is in threaded connection to the periphery of the left side of the connecting rod. According to the mechanical piano tuner, the handle can move left and right relative to the connecting rod by rotating the adjusting ring, so that the length of the device can be adjusted, the mechanical piano tuner is convenient to carry, the worm drives the worm gear to rotate by rotating the knob, and the speed is reduced through the reduction gear; therefore, the driven gear drives the sleeve to rotate slowly, and accurate adjustment is facilitated.

The utility model belongs to the field of piano tuning sound stopping tools, and particularly relates to a piano tuning sound stopping tool which comprises a device body, a sound stopping device is arranged on the surface of the device body, the sound stopping device comprises a connecting base, a fixing clamp is fixedly connected to the inner wall of the connecting base, and the fixing clamp is fixedly connected with the device body. The inner wall of the connecting base is rotationally connected with a movable clamp through a coil spring, the surface of the movable clamp is provided with an anti-abrasion inclined face, and the inner wall of the movable clamp is connected with one end of a steel wire rope in a sleeved mode. According to the piano tuning sound stopping tool, at the moment, the device integrally penetrates through a string knocking mallet, a string is located in a gap between a fixed clamp and a movable clamp, a control handle is loosened, a coil spring of the movable clamp is reset to clamp the string, the control handle is pulled to rotate through a steel wire rope, and therefore when sound stopping clamping is conducted on the string, the string can be clamped in a clamped mode; the sound stopping device does not need to extrude the strings into the sound stopping clamp to be clamped like a common sound stopping clamp, so that the extrusion and abrasion of the sound stopping device to the strings can be greatly reduced.

This invention discloses an intelligent automatic piano tuning system and method based on an edge-cloud collaborative architecture, belonging to the field of automatic musical instrument tuning technology. It includes: a mobile terminal for acquiring string audio, extracting the fundamental frequency, and generating tuning commands; a cloud server, communicatively connected to the mobile terminal, for generating a personalized target frequency table based on the acoustic characteristics of the strings using a global optimization algorithm; and a physical execution terminal, communicatively connected to the mobile terminal, including a microcontroller and a motor drive unit, for receiving the tuning commands and driving the motor to adjust the tuning pins in a closed-loop manner. This invention achieves low-cost, high-precision, and fully automatic piano tuning, can generate extended tuning curves comparable to those in concert halls, and has multiple safety protections, making it suitable for daily pitch maintenance in homes, music stores, and music schools.