Acoustic control apparatus for controlling musical tones based upon visual images
AssigneeYamaha Corporation
InventorsMamoru Kimpara, Takeshi Adachi
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Abstract
An acoustic control apparatus which can be applied to an electronic musical instrument controls the acoustics of a musical tone to be generated in response to variation of an image. In order to detect the variation of an image, the acoustic control apparatus extracts a predetermined image element from image information to be given thereto. This image element can be identified as movement of image, color of an image or an outline of image. The color of image can be detected by detecting hue and/or number of colors in the image. In addition, in response to periodicity in variation of this image element, a performance tempo of musical tone can be controlled.
Claims15
An acoustic control apparatus comprising:
- (a) extracting means for extracting a predetermined image element from pictorial image information containing plural image elements, said predetermined image element undergoing variation relative to other image elements of said pictorial image information;
- (b) detecting means for detecting periodicity in the relative variation of said predetermined image element;
- and
- (c) control means for controlling a performance tempo of a musical performance in response to the detected periodicity of said predetermined image element.
An acoustic control apparatus comprising:
- (a) image pick-up means for picking up a pictorial image of an object;
- (b) distance measuring means for measuring the distance between said object and said image pick-up means;
- (c) element extracting means for extracting a predetermined image element from an image signal outputted from said image pick-up means;
- and
- (d) acoustic control means for giving variation to a music information in response to said distance measured by said distance measuring means an din response to said image element extracted by said element extracting means.
A musical tone generating apparatus comprising:
- (a) input means for inputting pictorial image information;
- (b) sampling means for outputting information which is obtained by sampling said image information, so that said sampling means outputs said information as waveform data;
- (c) memory means for storing said waveform data;
- (d) writing means for writing said waveform data into said memory means;
- and
- (e) reading means for reading said waveform data from said memory means,
- whereby a musical tone is to be generated based on the read waveform data.
Dependencies are inferred from the claim text.