Electronic sound signal generator achieving scratch sound effect

Details Electronic sound signal generator achieving scratch sound effect Electronic sound signal generator achieving scratch sound effect

1993-10-12

1996-04-30

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84628, G10H 700

Patent

active

055127045

ABSTRACT:
While a sound waveform is reproductively read out from a waveform memory in accordance with a readout rate designated in correspondence to a desired pitch, scratch control data for controlling readout rate and readout direction are generated using a manual controller or an envelope function generator. In accordance with the scratch control data, the readout rate is changed. The thus-changed readout rate is of a positive or negative value depending on a factor that controls the readout direction. Readout from the waveform memory of the waveform data is controlled on the basis of the changed readout rate so that, when the changed rate is of a positive value, the waveform data are read out from the memory in the forward direction at a readout speed corresponding to the rate value, and when the changed rate is of a negative value, the waveform data are read out from the memory in the reverse direction. Further, when the changed rate is zero, the waveform data readout is stopped. Thus, in accordance with time-variable conditions of the scratch data, it is possible to perform a variety of waveform readout controls, such as discontinuing readout, accelerating and slowing down readout in the forward direction, and switching to readout in the reverse direction and accelerating and slowing down readout in the reverse direction.

REFERENCES:
patent: 4179971 (1979-12-01), Takahashi et al.
patent: 4768413 (1988-09-01), Fujimori
patent: 4813327 (1989-03-01), Abe
patent: 4961363 (1990-10-01), Mizuno et al.
patent: 5239123 (1993-08-01), Fujita
patent: 5350882 (1994-09-01), Koguchi et al.

Affiliated with

Also associated with

Rating

Electronic sound signal generator achieving scratch sound 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 sound signal generator achieving scratch sound effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic sound signal generator achieving scratch sound effect will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-630127