Browse Prior Art Database

Devices for the Production of Background Music

IP.com Disclosure Number: IPCOM000122182D
Original Publication Date: 1991-Nov-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 78K

Publishing Venue

IBM

Related People

Chess, DM: AUTHOR

Abstract

Disclosed are devices which can produce any amount (occasional or continuous) of original background music without any significant ongoing costs, i.e., no copyright or royalty fees, no subscription charges, no fees to composers or performers. The music is composed by computing systems of various types and while the music will be in some sense "uninspired", it will be quite sufficient for the uses to which background music is put.

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This is the abbreviated version, containing approximately 52% of the total text.

Devices for the Production of Background Music

      Disclosed are devices which can produce any amount
(occasional or continuous) of original background music without any
significant ongoing costs, i.e., no copyright or royalty fees, no
subscription charges, no fees to composers or performers.  The music
is composed by computing systems of various types and while the music
will be in some sense "uninspired", it will be quite sufficient for
the uses to which background music is put.

      The most important components that figure in systems covered by
this invention include the following (not all systems covered by this
invention will contain, or consist only of, components in this list).
-    Control devices, including simple controls (power on/off, volume
controls, and such) and more complex controls (to change higher-
level properties of the music produced).
-    A random-number generator, for ensuring that each composition is
sufficiently different to maintain the desired degree of "interest"
in the music.  (Many hardware and software random-number generators
are known in the art.)
-    Music-composition systems, consisting of one or more systems
embodying music-composition algorithms of various kinds, and
employing the random-number generator.  These systems may be
implemented as special programs running on general-purpose computing
hardware, or as specially built hardware for music composition.
Algorithmic systems capable of producing acceptable background music
exist.
-    Sound-generation systems, for translating the digital music
produced by the music-composition systems into analog form for sound
production.  Existing candidate sound-generation systems include FM
synthesis systems (such as the IBM Music Feature), other synthesis
systems (additive, subtractive, sampling, and so on), and general
analog-to...