A tremolo and tuning apparatus for a stringed musical instrument. The stringed musical instrument includes a body and a neck, a plurality of strings extending from the body to the neck, a nut for supporting the strings on the neck forming a first critical point for each string, a bridge element for supporting the strings on the body forming a second critical point for each string. The apparatus includes a tremolo and tuning apparatus having a one-piece saddle configured to hold unmodified strings which include the ball end uncut. The tremolo and tuning apparatus also includes a plurality of tuner rods disposed atop each string and separate from the saddle. These tuner rods are configured to fine tune each string by a user pressing downward on each tuner rod as needed to tune each string of the stringed musical instrument rather than pulling and releasing tension in each string.

The present disclosure relates to double-ended keyboard devices and methods. In one embodiment, a device includes a first housing having a first keyboard section and control surface, with input keys arranged in a first direction and a second housing having a second keyboard section and control surface, with input keys arranged in a second direction. The device includes a joint securing the first housing and the second housing to provide rotation of the housings along an axis. The device also includes a control unit configured to detect input to housing and to generate output. The device includes an output interface coupled to the control unit. Processes are described including generating output based on detected input to the first and second keyboard sections and controlling output. Operations and devices configurations allow for a wearable control device that may be operated or played like an instrument.

The present disclosure relates to double-ended keyboard devices and methods. In one embodiment, a device includes a first housing having a first keyboard section and control surface, with input keys arranged in a first direction and a second housing having a second keyboard section and control surface, with input keys arranged in a second direction. The device includes a joint securing the first housing and the second housing to provide rotation of the housings along an axis. The device also includes a control unit configured to detect input to housing and to generate output. The device includes an output interface coupled to the control unit. Processes are described including generating output based on detected input to the first and second keyboard sections and controlling output. Operations and devices configurations allow for a wearable control device that may be operated or played like an instrument.

A musical instrument with an improved interface for playing the instrument is provided. The musical instrument may be configured with a musical scale and a key. An input interface of the musical instrument may be configured based on the scale and key to allow a player of the instrument to easily play multiple collections of notes, or chords, in a simplified manner. For example, the improved interface allows a user to play a number of chords or other collection of notes without having to depress or engage a number of sound actuators at different locations along instrument.

A manual vibrato control device, system and processing arrangement are disclosed. A manual vibrato includes a rotatable shaft, a raised cam section on the shaft, first and second biased collars received on the shaft either side of the cam section, the bias of the first collar being rotationally opposite to the bias of the second collar such that as the shaft rotates in one direction, it receives a return force from the first collar but does not rotate the second collar, and vice versa.

Also disclosed are processing techniques to take the rotational data from rotational sensors, preferably Hall Effect, on the shaft and generate pitch change instructions for a pitch modification device. The mapping is user controllable to produce desired effects and performance.

Disclosed are an apparatus and a method of generating a sound by using a touch screen. A sound modulation apparatus according to the present invention includes: a sensor information input unit configured to receive sensing information on a position, at which a touch input of a user is applied to the screen, and pressure according to the touch input applied to the screen; and a sound modulation unit configured to set a tone frequency and volume of a sound to be output, and set the tone frequency according to the position, to which the touch input of the user is applied, and set the volume according to a size of the pressure according to the touch input.

An audio signal processing device (20) includes: an acquirer (210) configured to acquire biological information of a human subject; a processor (240) configured to identify at least one of a breathing cycle and a heartbeat cycle of the human subject, based on the biological information; and an effect imparter (250) configured to impart to an audio signal (SD) a frequency characteristic that changes at a cycle set in accordance with either the breathing cycle or the heartbeat cycle.

Audio translation system includes a feature extractor and a style transfer machine learning model. The feature extractor generates for each of a plurality of source voice files one or more source voice parameters encoded as a collection of source feature vectors, and generates for each of a plurality of target voice files one or more target voice parameters encoded as a collection of target feature vectors. The style transfer machine learning model trained on the collection of source feature vectors for the plurality of source voice files and the collection of target feature vectors for the plurality of target voice files to generate a style transformed feature vector.

Embodiments of the present disclosure can provide systems, methods, and computer-readable medium for implementing user interfaces for interacting with a virtual instrument. For example, first touch input indicating a string location of a plurality of string locations within the note selection area. Audio output corresponding to the sting location may be presented on a speaker based at least in part on the first touch input. Second touch input corresponding to an ornamental interface element of the user interface may be received. In response to the first and second touch input, a series of two or more audio outputs may be presented on the speaker according to a predetermined pattern.

A virtual instrument can manage separate static and dynamic samples for various notes that can be played by the virtual instrument. In some cases, the static samples correspond to resonance sounds recorded for an instrument and are the same for every note. However, the dynamic samples may correspond to isolated sounds that are recorded for each variation of a note that can be played. In response to a user's selection of a note on a user interface of the virtual instrument, the virtual instrument may determine a rule for layering the various static and dynamic samples for playback.