The present invention relates to a calculation formula of Pythagorean tuning. It specifically comprises: inputting the initial frequency of the musical tuning, the number of downward tone and the number of upward tone through an input module, then calculating a corresponding frequency value by utilizing a calculation module, and outputting the corresponding frequency value through an output module. Compared with the traditional calculation method, the present invention has the advantages that: the present invention inputs the initial frequency of the musical tuning, the number of downward tone and the number of upward tone utilizing an input module, and calculates the corresponding frequency value by utilizing a calculation module, and outputs the corresponding frequency value through an output module, especially the obtained tone sequence can be played by various musical instruments through the sound output unit in the output module, which is convenient for music practitioners to use.

Systems and methods are described in which the location of a tap on the body of a handheld device is determined in real time using data streams from an embedded inertial measurement unit (IMU). Taps may be generated by striking the handheld device with an object (e.g., a finger), or by moving the handheld device in a manner that causes it to strike another object. IMU accelerometer, gyroscopic and/or orientation (relative to the magnetic and/or gravitational pull of the earth) measurements are examined for signatures that distinguish a tap at a location on the body of the device compared with signal characteristics produced by taps at other locations. Neural network and/or numerical methods may be used to perform such classifications. Tap locations, tap timing and tap attributes such as the magnitude of applied forces, device orientation, and the amplitude and directions of motions during and following a tap, may be used to control or modulate responses within the handheld device and/or actions within connected devices.

A signal generation device includes a memory configured to store instructions and a processor communicatively connected to the memory. The processor is configured to execute the instructions to function as a signal generation unit to generate a sound signal based on key operation data associated with a key operation and a decay control unit to control a decay speed of the sound signal based on pedal operation data. The decay control unit is configured to control the decay speed to a first speed in a case where the pedal operation position is in a first range, and the decay control unit is configured to control the decay speed to a second speed in a case where the pedal operation position is in a second range. A first boundary position between the first and the second ranges is determined based on control information obtained by the key operation.

A signal generation device includes a memory configured to store instructions and a processor communicatively connected to the memory. The processor is configured to execute the instructions to function as a signal generation unit to generate a sound signal based on key operation data associated with a key operation and a decay control unit to control a decay speed of the sound signal based on pedal operation data. The decay control unit is configured to control the decay speed to a first speed in a case where the pedal operation position is in a first range, and the decay control unit is configured to control the decay speed to a second speed in a case where the pedal operation position is in a second range. A first boundary position between the first and the second ranges is determined based on control information obtained by the key operation.

An electronic apparatus and/or a controlling method are provided. The electronic apparatus may include a camera for photographing an image, a microphone for receiving an input of a sound of a first channel, and a processor for generating sounds of a plurality of channels based on the input sound, wherein the processor is configured to identify an object and the location of the object from the photographed image, classify the input sound based on an audio source, and allot the sound to the corresponding identified object, copy the classified sound and generate sounds of two channels, adjust characteristics of the generated sounds of two channels based on the audio source allotted to the identified object and the location of the identified object, and mix the sounds of two channels wherein the characteristics were adjusted according to the audio source and generate a stereo sound of two channels.

An apparatus and method for pitch-shifting an audio signal with low complexity are disclosed. The method includes identifying a distance between an audio object included in the audio signal and a listener, checking whether the distance between the audio object and the listener decreases, and performing stepwise stretching pitch-shifting of repeatedly using at least one of frequency components of the audio signal when the distance between the audio object and the listener decreases.

In one aspect, a computerized method of auditory therapeutic stimulation with a mobile-device application includes the step of, with a mobile device, providing an auditory therapeutic stimulation application operative in the mobile device. The method includes the step of receiving a user input comprising a user pathology of the user or an athletic goal of the user. The method includes the step of associating the user input with a neurological region of user's brain; determine a tone frequency that stimulates the neurological region of user's brain. The method includes the step of determining a specified period to play the tone frequency. The method includes the step of playing the tone frequency to the user for the specified period of time.

In one aspect, a computerized method of auditory therapeutic stimulation with a mobile-device application includes the step of, with a mobile device, providing an auditory therapeutic stimulation application operative in the mobile device. The method includes the step of receiving a user input comprising a user pathology of the user or an athletic goal of the user. The method includes the step of associating the user input with a neurological region of user's brain; determine a tone frequency that stimulates the neurological region of user's brain. The method includes the step of determining a specified period to play the tone frequency. The method includes the step of playing the tone frequency to the user for the specified period of time.

A highly configurable controller is described that includes a number of different types of control mechanisms that emulate a wide variety of conventional control mechanisms using pressure and location sensitive sensors that generate high-density control information which may be mapped to the controls of a wide variety of devices and software.

A highly configurable controller is described that includes a number of different types of control mechanisms that emulate a wide variety of conventional control mechanisms using pressure and location sensitive sensors that generate high-density control information which may be mapped to the controls of a wide variety of devices and software.