Electronic musical instrument having octave slide effect

Details Electronic musical instrument having octave slide effect Electronic musical instrument having octave slide effect

1976-08-23

1978-03-28

Weldon, Ulysses

Music

Instruments

84 103, 84 117, 84 101, G10H 102

Patent

active

040808629

ABSTRACT:
An electronic musical instrument wherein, by merely depressing one key, the tone pitch corresponding to that key varies periodically with cyclic repetition at a specific rate. The pitch variation is made on the octave basis by periodically shifting digits of binary signals of plural bits which designate readout addresses of a musical tone waveform. Various patterns of the pitch variation can be obtained by suitably setting a pattern of shifting of the digits of the binary signals. The patterns include an "up mode" in which the pitch slides successively toward higher pitches one octave interval at a time and then, upon reaching a predetermined octave, immediately returns to the original pitch and subsequently the same operation is repeated, and a "turn mode" in which the pitch slides successively toward higher pitches one octave interval at a time and, upon reaching a predetermined octave, slides successively in the reverse direction until it returns to the original pitch and subsequently the same operation is repeated. The patterns further include a "jump mode" in which, when a plurality of keys are successively depressed, the pitches of the succeedingly depressed keys slide in conformity with the octave slide of the first depressed key and a "random mode" in which, when a plurality of keys are successively depressed, the octave slide of the respective keys is made independently and separately from each other. In a case where plural keys are depressed, the "up mode" or the "turn mode" can be selectively combined with the "jump mode" or the "random mode". The speed of the octave slide is determined by the rate of the clock pulse employed in the instrument and, accordingly, a clock pulse of a rate corresponding to a note to be played is selectively used.

REFERENCES:
patent: 3718748 (1973-02-01), Bunger
patent: 3725562 (1973-04-01), Munch, Jr. et al.
patent: 3854366 (1974-12-01), Deutsch
patent: 3910150 (1975-10-01), Deutsch et al.
patent: 3929053 (1975-12-01), Deutsch

Affiliated with

Also associated with

Rating

Electronic musical instrument having octave slide effect does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic musical instrument having octave slide effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic musical instrument having octave slide effect will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-637589