Abstract: Multiple channels simultaneously provide multiple, modified digital audio signals, respectively, based on the same digital audio input signal. Each channel has a respective nonlinear effects section to apply a nonlinear transfer function, such as one that emulates a vacuum tube guitar amplifier, based on the input signal. In addition, a respective audio effects section is provided in each channel to apply an audio effect, such as a linear audio effect, based on the input signal. This audio effect is set in each channel by a controller. In another embodiment, multi-tracker (e.g., double tracker) functionality is provided by the multiple channels wherein at least one of the delay effect, pitch shift, and gain change in a channel is automatically changed as a function of the input signal.

Abstract: Multiple channels simultaneously provide multiple, modified digital audio signals, respectively, based on the same digital audio input signal. Each channel has a respective nonlinear effects section to apply a nonlinear transfer function, such as one that emulates a vacuum tube guitar amplifier, based on the input signal. In addition, a respective audio effects section is provided in each channel to apply an audio effect, such as a linear audio effect, based on the input signal. This audio effect is set in each channel by a controller. In another embodiment, multi-tracker (e.g., double tracker) functionality is provided by the multiple channels wherein at least one of the delay effect, pitch shift, and gain change in a channel is automatically changed as a function of the input signal.

Abstract: An electronic musical instrument according to the invention stores a difference tone identifying table which associates musical sounds of different pitches with a difference tone perceived from the musical sounds of different pitches. Receiving an instruction to simultaneously produce musical sounds of different pitches, the electronic musical instrument extracts a difference tone corresponding to the musical sounds of different pitches from the difference tone identifying table and generates then outputs a sound signal corresponding to the extracted difference tone and the musical sounds of different pitches.

Abstract: A method for processing an audio signal is provided that includes receiving an audio signal and integrating the audio signal with a selected one of a plurality of sound effects. The method also includes generating an output that reflects the integration of the audio signal and the selected sound effect. The output may then be communicated to a next destination.

Abstract: When the performance by a piano part is automatically provided based on musical performance information so as to provide an ensemble performance with an automatic performance part by an electronic tone generator, a processing path for the automatic performance part on the side of the electronic tone generator includes a DSP to provided delayed output in the musical tone data so as to conform to a sound production timing of the piano part side.

Abstract: An electronic musical instrument has a means used by a player to set a key name to which transposition is to be made and a part number to designate a transposition excluding part. Tone data in parts other than the transposition excluding part are exclusively subjected to transposition processing, and transposed tones are produced. For example, play data of a keyboard are set as a transposition excluding part, and their tones are produced in C major key as the key played. On the other hand, the keys of accompanying tones such as chord tones, rhythm tones, and the like programmed in keys other than C major key in a storage medium are transposed to C major key to produce transposed tones, allowing an ensemble play in common key.

Abstract: A chorus apparatus creates an artificial chorus sound in parallel to a live vocal sound. A pickup collects a live vocal sound and converts the collected live vocal sound into a corresponding vocal sound signal. A generator device generates a chorus sound signal representative of an artificial chorus sound in synchronization with the vocal sound signal. A plurality of output devices are installed separately from each other to define different sound sources. One of the output devices receives the vocal sound signal and acoustically reproduces therefrom the live vocal sound. Another of the output devices receives the chorus sound signal and acoustically reproduces therefrom the artificial chorus sound so that the live vocal sound and the artificial chorus sound can be mixed as if sounded from different sound sources.

Abstract: In an electronic musical instrument, a complete range of a keyboard can be split into at least two registers, so that a different kind of tone color can be assigned to each of two registers. The electronic musical instrument provides at least four tone-color designating switches, one edit switch and two kinds of indicators. Each of the four tone-color designating switches is capable of independently designating a certain tone color. Herein, two tone-color designating switches are provided to designate two tone colors respectively for use in one register, while other two tone-color designating switches are provided to designate two tone colors respectively for use in another register. The edit switch designates each of parameters which are used to define a property of the tone color. The first indicator indicates the tone color currently designated, while the second indicator indicates the parameter currently edited.

Abstract: In an automated system for learning to play a musical instrument, music data and tone control data for a musical composition of an exemplary musical instrument is stored in machine readable form. An audio signal generated by a musical instrument being played, corresponding to the exemplary musical instrument, is inputted through a musical effects apparatus wherein the musical tone of the musical instrument being played is mixed with the stored music data. The musical effects apparatus is utilized, under digital control, to match the musical tone of the musical instrument being played with that of the exemplary musical instrument. More particularly, the music data and tone control data of the musical composition are stored on a conventional CD-ROM. The tone control data is utilized to create control parameters which can be used to control one or more electronic effects devices in an automated fashion.

Abstract: A selector is provided for selecting a predetermined effect. Instruction as to whether this effect should be imparted or not is not made instantly in response to an output of this selector but made in association with instruction of start of tone generation by a key-on event signal. For example, even when a state in which an effect is selected is brought about in the course of generation of a tone without selecting an effect, this effect is not imparted to the tone which is currently being generated. Upon instruction of generation of another new tone in this state, instruction of imparting of the effect is made for the new tone so that the effect is imparted to the new tone from the start of generation of the tone. Conversely, when a state in which no effect is selected is brought about in the course of generation of a tone which is imparted with an effect, the effect is kept imparted to the tone which is currently being generated until generation of the tone is ended.

Abstract: An electronic musical instrument with playback of background tones and generation of key-on phrase tones, in which a simple adlib play can be performed while a user is singing using a microphone or as an interlude without requiring high-grade techniques is disclosed.The electronic instrument includes an instrument main body (1) having a microphone (5) and a plurality of key pads (6), a section for playing back stored background tones of a song, a memory (21) for storing note pattern data for a plurality of phrases each consisting of a series of a plurality of key-on phrases in correspondence with the plurality of key pads, and a tone generator (20) for reading out the note pattern data of the corresponding phrase in response to an operation of the key pad (6), and forming tone generation signals. The output from the microphone, the playback signals of the background tones, and the tone generation signals of the phrase are supplied to a loudspeaker (11).

Abstract: An apparatus for controlling a musical tone in an electronic musical instrument which has a plurality of keys and a plurality of tone generation channels, the apparatus includes a detecting device for detecting a depression state of the plurality of keys, a counter for counting number of key which are simultaneously depressed when key depression is detected, an assigning device for assigning predetermined number of the tone generation channels to each of depressed keys so as to substantially stabilize number of entire assigned generation channels, in accordance with a counted value of the counter, a loudspeaker for generating tone signal from the predetermined number of tone generation channels assigned by the assigning device. In the apparatus, even if the number of keys to be depressed is changed, the number of tones to be simultaneously produced is not greatly changed.

Abstract: A melody supplement control apparatus is disclosed wherein supplementary tones for melody tones are produced according to predetermined rules, and the degree of the addition of the aforesaid supplementary tones to the aforesaid melody tones is determined based on the pitch of the said supplementary tones.

Abstract: An electronic musical instrument capable of generating musical sounds of a plurality of tone colors simply by designating a plurality of tone colors simultaneously in the tone color switches. The tone color switches may be provided in a front panel adjacent a keyboard.

Abstract: A performance apparatus for producing a mixed musical tone signal having a comparator and a modulator. The comparator detects key data corresponding to musical tones having the same pitch and the same or similar tone colors from key data of musical tones to be mixed. The modulator changes at least a tone element of the mixed musical tone signal on the basis of the key data detected by the comparator to produce tones having multiple-tone like tone colors. The modulator comprises a detuner for detuning pitches of some musical tones of a plurality of musical tones formed based on the key data detected by the comparator, or comprises a modulator for modulating an amplitude or a frequency of the musical tone signal formed and mixed bases on the key data detected by the comparator.

Abstract: An electronic musical instrument having a key-depression-detecting circuit for detecting a depressed key on a keyboard and for generating tone-pitch data corresponding to the depressed key, a tone-color-designating circuit for sequentially designating a desired tone color among a plurality of tone colors, a tone-color-data-storing circuit for storing tone-color data associated with the tone colors sequentially designated by the tone-color-designating circuit, an ensemble-tone-designating circuit for designating a predetermined number of tone colors among the most recently designated tone-color data stored in the tone-color-data-storing circuit; and a musical-tone-signal-generating circuit for generating a plurality of musical-tone signals in a parallel fashion, each of the musical-tone signals having a tone color corresponding to one of the tone colors designated by the ensemble-tone-designating circuit, and having a tone-pitch corresponding to the tone-pitch data generated by the key-depression-detecting cir