摘要:
Un instrument musical electronique (1) simule un instrument musical a cordes tel qu'une guitare. Les sons musicaux de frequence et d'enveloppe appropriees sont produits. Un oscillateur (34) fournit une frequence d'horloge de reference a un compteur digital (38) qui est commande par des circuits de toucher (46) et un circuit digital (36) pour diviser la frequence d'horloge de reference en une frequence de sortie appropriee. Un circuit de commande d'enveloppe (40) forme la frequence de sortie pour simuler un instrument musical a cordes.
摘要:
An electronic musical instrument having a tone generator system is disclosed. The tone generator system incorporates N programmable generators (180, 190, 140) (where N is less than 12, and typically 7) which forms a system having the ability to sound notes of N different nomenclature tones at one time. A microprocessor (50) controls the assignment of particular notes to each of the programmable generators, in accordance with the played keys of the keyboard(s) (and the tab switches, in the event that a partial footage is selected). Each of the programmable generators includes a chain of dividers (291 to 297) and gates (240 to 247) which are also under the control of the microprocessor. The information ascertained by the microprocessor from the keyboard(s) (and the tab switches) is used to control the selection of gates which control the passage of tone signals from the appropriate dividers in the chains of dividers to an audio output system (200). More than one note of a particular nomenclature can be simultaneously gated from the divider chain of a particular programmable generator.
摘要:
An electronic musical instrument has a generator assigner (2) for supplying note data and octave data by key stroke, a top octave synthesizer (3) for generating 12 highest pitch signals for each note, a circuit (5) for selecting one highest pitch signal from the 12 highest pitch signals according to note data, a binary counter (6) for dividing said highest pitch signal to produce several pitch signals, and circuits (7) for selecting one pitch signal out of several pitch signals obtained by the binary counter. Further circuits (10) are controlled by both octave data and note data to generate octave series tone signals and non octave series tone signals such as quint series tone signals.
摘要:
Jeder Spieltaste im Manual der Orgel ist je ein Steuereingang der Digitalschaltung zu geordnet. Außerdem sind 12 Tonsignaleingänge vorgesehen, denen jeweils ein Ton der höchsten Oktave des Manuals festzugeordnet ist. Sie werden durch entsprechende von einem Tonfrequenzgenerator gelieferte elektrische Rechteckschwingungen mit den Pegeln "0" und "1" beaufschlagt. Die Anzahl der in der Schaltung vorgesehenen Tonfrequenzausgänge ist erheblich kleiner als die Zahl Steuereingänge der als Vermittlungsanlage wirkenden Digitalschaltung. Jeder der Tonfrequenzausgänge ist zur Beaufschlagung je eines fest zu geordneten Amplitudenformers vorgesehen. Durch die Spieltasten des Manuals ist über die Steuereingänge ein als Parallel-Serienwandler betriebenes Schieberegister vorgesehen, das zyklisch in die eigentliche Vermittlungsanlage entleert wird. Die hierzu erforderlichen Schiebetakte werden sowohl hinsichtlich des Tonnamens als auch hinsichtlich der Oktave der jeweils angespielten Spieltaste ausgewertet.
摘要:
The present invention consists in a method and electronic device used to reproduce the sound of church organ flue pipes, by taking advantage of the physical modeling technique of acoustic instruments; it being an audio-digital synthesis system based on digital signal processors, which contains a program of physical simulation of the generation of the sound of organ flue pipes.
摘要:
An electronic musical instrument (1) simulates a stringed musical instrument such as a guitar. Musical sounds of appropriate frequency and envelope are provided. An oscillator (34) provides a reference clock frequency to a digital counter (38) which is controlled by touch circuits (46) and a digital circuit (36) to divide the reference clock frequency into an appropriate output frequency. An envelope control circuit (40) shapes the output frequency to simulate a stringed musical instrument.