WO1998058363A1 - Interface midi de clavier d'ordinateur - Google Patents

Interface midi de clavier d'ordinateur Download PDF

Info

Publication number
WO1998058363A1
WO1998058363A1 PCT/AU1998/000475 AU9800475W WO9858363A1 WO 1998058363 A1 WO1998058363 A1 WO 1998058363A1 AU 9800475 W AU9800475 W AU 9800475W WO 9858363 A1 WO9858363 A1 WO 9858363A1
Authority
WO
WIPO (PCT)
Prior art keywords
keys
keyboard
midi
keypad
activation
Prior art date
Application number
PCT/AU1998/000475
Other languages
English (en)
Inventor
Anthony Romagnano
David John Ambry
Andrew Louis Martin
Original Assignee
Andrew Louis Martin
Anthony Romagnano
David John Ambry
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andrew Louis Martin, Anthony Romagnano, David John Ambry filed Critical Andrew Louis Martin
Priority to NZ501735A priority Critical patent/NZ501735A/en
Priority to CA002295201A priority patent/CA2295201A1/fr
Priority to AU80919/98A priority patent/AU736971B2/en
Publication of WO1998058363A1 publication Critical patent/WO1998058363A1/fr

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • G10H1/0058—Transmission between separate instruments or between individual components of a musical system
    • G10H1/0066—Transmission between separate instruments or between individual components of a musical system using a MIDI interface
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/161—Note sequence effects, i.e. sensing, altering, controlling, processing or synthesising a note trigger selection or sequence, e.g. by altering trigger timing, triggered note values, adding improvisation or ornaments or also rapid repetition of the same note onset
    • G10H2210/185—Arpeggio, i.e. notes played or sung in rapid sequence, one after the other, rather than ringing out simultaneously, e.g. as a chord; Generators therefor, i.e. arpeggiators; Discrete glissando effects on instruments not permitting continuous glissando, e.g. xylophone or piano, with stepwise pitch variation and on which distinct onsets due to successive note triggerings can be heard
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/395—Special musical scales, i.e. other than the 12-interval equally tempered scale; Special input devices therefor
    • G10H2210/541—Pentatonal or pentatonic scale, i.e. five pitches or notes per octave, e.g. basic Chinese musical scale, black piano keys, Javanese gamelan slendro scale or Japanese shakuhachi flute
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/155—User input interfaces for electrophonic musical instruments
    • G10H2220/221—Keyboards, i.e. configuration of several keys or key-like input devices relative to one another
    • G10H2220/231—Alphanumeric, used for musical purposes or with additional musical features, e.g. typewriter or pc-type keyboard reconfigured such that letters or symbols are assigned to musical notes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/155—User input interfaces for electrophonic musical instruments
    • G10H2220/315—User input interfaces for electrophonic musical instruments for joystick-like proportional control of musical input; Videogame input devices used for musical input or control, e.g. gamepad, joysticks
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/045—Special instrument [spint], i.e. mimicking the ergonomy, shape, sound or other characteristic of a specific acoustic musical instrument category
    • G10H2230/251—Spint percussion, i.e. mimicking percussion instruments; Electrophonic musical instruments with percussion instrument features; Electrophonic aspects of acoustic percussion instruments or MIDI-like control therefor
    • G10H2230/261—Spint triangle
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/045—Special instrument [spint], i.e. mimicking the ergonomy, shape, sound or other characteristic of a specific acoustic musical instrument category
    • G10H2230/251—Spint percussion, i.e. mimicking percussion instruments; Electrophonic musical instruments with percussion instrument features; Electrophonic aspects of acoustic percussion instruments or MIDI-like control therefor
    • G10H2230/321—Spint cymbal, i.e. mimicking thin center-held gong-like instruments made of copper-based alloys, e.g. ride cymbal, china cymbal, sizzle cymbal, swish cymbal, zill, i.e. finger cymbals

Definitions

  • This invention relates to signal conversion means for adapting the signals output by a standard keyboard - and, optionally, a standard joystick - of a PC (personal computer) to devices (equipment, firmware or software) such as sound cards, sequencers, synthesisers, composers and sound modules which conform to the MIDI (Musical Instrument Digital Interface) protocol established by the International MIDI Association.
  • the signal conversion means which may be implemented in hardware, software and/or firmware, thus serves as an interface between a PC keyboard and a MIDI device.
  • a standard computer keyboard typically has the following components: • A set of symbol keys comprising about four rows of alphanumeric and punctuation keys having about 10 keys per row. The layout of the symbol keys normally follows that of the QWERTY typewriter, but any other layout of these keys — such as that of the Dvorak typewriter — may be used. The set of symbol keys is normally located centrally or somewhat to the left on the keyboard. • A bottom or fifth row of keys below the symbol keys, comprising at least the spacebar but often including a few function keys on either side of the spacebar.
  • the keys of this group are positioned in line with at least three rows of the symbol keys.
  • a set of righthand control keys to the right of the symbol keys and normally including at least three of the following keys — Backspace, Enter, right-Ctrl, right-Shift, right-Alt, Ins, Del and Home.
  • the keys of this group are normally positioned in line with at least three rows of the symbol keys.
  • a set of four courser keys normally to the right of the set of symbol keys, marked with left, right, up and down arrows. These are sometimes called arrow keys.
  • a set of at least 10 programmable function keys usually 12 keys in one row above the symbol keys and marked F1 to F12.
  • a set of 15-20 keys arranged in the form of a calculator-style numeric keypad may not be integrated into the rest of the keyboard but, instead, formed as a physically separate unit connected to it by a suitable cable.
  • Dedicated electronic circuitry which scans all keys and detects the depression and release of any one or more keys (alone, in sequence or in combination) and generates a corresponding standard PC-format digital signal.
  • a PC keyboard is used to generate music it is usual to allocate some keys (generally symbol keys) to simulate portion of a piano keyboard. This will enable a person to play tunes as if on a piano. Other keys can then be used to shift octaves and assign voicings to the 'piano' keys. It is also known to use yet other keys of the PC keyboard to generate chords.
  • the present invention is based upon the appreciation that the keypad of the PC keyboard can be used to manually generate an arpeggio-like sequence of notes in a given scale or chord, as is often done by a double-bass or base guitar in a small band, or to generate a regular sequence of drum percussion sounds typical of a drummer using a drum set to maintain a regular beat pattern. In other words, it was appreciated that the keypad is well adapted to rhythmic accompaniment with harmonic variation.
  • US patent No. 4655117 to Roose discloses the use of a non-standard PC keyboard that is said to utilise the skills of touch-typists who are not familiar with piano-style keyboards. At least five new keys are added to each end of each row of symbol keys. When in 'music mode', the tonal progression between the notes generated by keys in each row of keys corresponds to a few octaves of a different diatonic scale. Thus transposition is simply a matter of using the same fingering on a different row of keys.
  • the Roose device allows the generation of polyphony or chords, requires an expensive custom-made key board, is played in a manner quite different to a piano, does not utilise a MIDI interface and does not exploit a numeric keypad for the generation of sounds.
  • US patent 5,088,378 to DeLaTorre offers a polyphonic system with melody, chord generation and transposition from a PC keyboard, the use of a keypad or MIDI interface not being disclosed.
  • the keyboard is essentially divided in half, those on the left being multiplexed to generate all 48 chords, and those on the right being multiplexed to generate the melody over a range of five or six octaves.
  • the operation of any one of 24 keys on the lefthand side of the keyboard, by itself or in combination with the left Shift key, will generate any one of the 48 possible chords.
  • the operation of any one of 26 keys on the right is used to generate 31 tones, or nearly three octaves.
  • the tone of the selected melody note is shifted down by a semitone when the melody key is further combined with the operation of the right Shift key.
  • the arrangement of musical notes/keys quite different to that of a piano (so that a novel notation is required for sight-reading), but the three-level multiplexing of the melody keys is as foreign to a typist as it would be to a pianist.
  • the present invention is based upon the realisation that the numeric keypad of a PC keyboard is very appropriate for the manual input in real-time of a sequence of musical notes or sounds which, if desired, can be harmonised with other musical settings of the keyboard, such as chords or music-key.
  • this type of musical input will be called 'manual sequencing'. It is of great value in real-time improvisation and is, in that regard, quite distinct from the function of programmable sequencers by which a sequence of sounds can be recorded during a composing or a programming session then replayed in a play mode.
  • the lefthand group of control keys In addition to employing the keypad in this way, it is preferable to use the lefthand group of control keys to generate chords and to use most of the first four rows of PC symbol keys as two banks of piano-style keys for musical input.
  • the keys of the lefthand control group used for chord generation may therefore be called 'chord keys'.
  • One way of utilising the numerical keypad in harmonisation with the chord keys is to automatically map the component notes of the musical scale of each chord as it is played with the left hand onto the keypad so that consonant variations can be played in that scale with the right hand, preferably in a lower register to provide bass accompaniment. This allows bass variations to be generated using consistent fingering from chord to chord without need to be concerned with sharps and flats.
  • the root note (C) of that chord is allocated to keypad key 1 and keypad keys 2, 3 etc are allocated to successive notes of the C- major scale; if the chord of F-major is played, the root note (F) of that chord is allocated to keypad key one and keypad keys 2,3 etc are allocated to successive notes of the F-major scale; the fingering of the keypad is thus consistent irrespective of scale.
  • the root note on the keypad is a bass note two octaves below the root note of the chord played using a chord key. This mode of keypad use is hereafter referred to as the 'bass mode'.
  • Another way of utilising the numerical keypad is to fixedly assign the notes of a selected musical scale to the keypad keys so that the scale of the keypad does not change with the scale of the chords.
  • a conventional musical octave would be assigned to keypad keys 1 -7, with key 8, 9 ... being assigned to notes which are an octave higher than those represented by number keys 1 ,2....
  • a pentatonic scale would be played with keypad keys 1 -5 and repeated in the higher register with keys 6-9. Again, this allows for the easy rendition of scales and arpeggios in a manner which is much more straightforward than with the conventional layout of piano keys.
  • This mode of keypad use is herein referred to as the 'scale mode'.
  • Yet another way of utilising the numerical keypad is to map percussion sounds onto its keys so that, for example, repeated manual operation of keys 1 -3 in sequence will reproduce a familiar drum and cymbal backing in, say, 4:4 or 6:8 time.
  • the same drum may be assigned to three adjacent keypad keys (say, 4,5,6) so that drum-rolls can be easily effected.
  • This mode of utilising the keypad is herein referred to as the 'drum mode'.
  • chord keys As also indicated above, it is preferable to assign the lefthand control keys (together with some of the lefthand symbol keys) to the playing of chords and it is convenient to refer to the latter keys as chord keys in a musical context.
  • the musical key of the chords played, as well as the multiplexing of the chords on the lefthand PC keyboard group, is preferably determined by control keys in that group and/or by use of the PC keyboard function keys.
  • the keys used to generate chords in the music mode will therefore be referred to as 'chord' keys.
  • PC function keys to select the mode of operation of the keypad and to program desired percussion sounds onto the keypad (for the drum mode). It is also convenient to assign note variation or modulation (eg, voicing, octave-shift, velocity and instrument selection) affecting the piano, chord and keypad keys, to the righthand group of PC control keys.
  • note variation or modulation eg, voicing, octave-shift, velocity and instrument selection
  • the up and down arrow keys can be used to increase and decrease the velocity of attack of sounds
  • the left and right arrow keys can be used for down-octave and up-octave shifts
  • the Page-Up and Page-down keys can be used to effect corresponding transpositions of musical key, preferably for the chords and scales executed on the keypad as well as the piano notes.
  • Two further function keys in the righthand PC control group may be used for raising and lowering output volume (when the keyboard is in the music mode).
  • the PC function keys may be allocated to the generation of percussive sounds, such as drums, sticks, handclaps, cymbals, triangles and the like, though the assignment of other voicings to these keys is also possible.
  • the programmable function keys are multiplexed under keyboard or software control so that multiple 'banks' of voicings can be selected.
  • chord keys are set to the chords of C major
  • the keypad is mapped with the notes of C major starting from two octaves below the root note of the chord keys, and most of the PC function keys are set to percussion.
  • This provides the four common components of many popular music bands (piano/lead, chords, bass backing and drums).
  • the invention comprises signal conversion means to effect the conversion of PC keypad signals into MIDI signals with any of the musical effects indicated above. It also comprises a method and an interface means for utilising a standard PC keyboard with a numeric keypad to achieve these effects.
  • the signal conversion means and the method may incorporate the use of a PC joystick to effect the bending or wha-wha variation of any note or chord played on the keyboard.
  • the invention may be implemented in hardware and firmware as a interface device which is physically independent of the keyboard and PC, as will be described in the following example.
  • a hardware/firmware device can be incorporated in the keyboard case or on the soundcard of the computer.
  • the signal conversion means may be partially or entirely implemented in software running on the PC.
  • Figure 1 is a diagrammatic perspective view of a MIDI music system employing the MIDI interface of the chosen example of the present invention
  • Figure 2 is a plan view of a standard PC computer keyboard showing how general music functions are assigned to key groups in the chosen example, the keys being marked to indicate their normal PC functions,
  • FIG 3 is a plan view of the keyboard of Figure 2 in which the keys are marked to indicate their musical functions
  • Figure 4 is a tabulation relating PC keypad codes to MIDI codes for the three manual sequencer modes
  • FIG. 5 is a functional block diagram of the interface unit of the chosen example and some of its possible connections,
  • Figure 6 is a system chart summarising the broad musical functions of the keyboard and signal converter of the chosen example.
  • the music system 10 of the chosen example is based upon a free-standing hardware-implemented keyboard-to-MIDI interface 12 that (i) accepts inputs (alone or in combination) from a standard PC keyboard 14, a standard games joystick 16 and/or a conventional piano-style MIDI keyboard 18, and (ii), delivers MIDI-coded outputs to the MIDI-input of the soundcard (not shown) of a PC 20 and/or to a commercial MIDI-compatible sound-generator 22 (eg, a Hyundai MU50 or a Roland SC-50) .
  • a commercial MIDI-compatible sound-generator 22 eg, a Yamaha MU50 or a Roland SC-50
  • the multi-channel analogue outputs generated by the soundcard of PC 20 and sound-generator 22 are fed to a conventional amplifier 24 that drives a pair of conventional loudspeakers 26. It will be appreciated that some standard PC keyboards have sockets for the connection of joysticks and that it is immaterial whether joystick 16 is connected direct to interface 12 or indirectly via keyboard 14.
  • FIGS 2 and 3 show the manner in which the principal musical functions are assigned to the keys of PC keyboard 14, Figure 2 showing PC key-caps and Figure
  • the keys of the first row of this group -- bearing semi-tone symbols — represent the black keys of about one an a half piano octaves, while the keys of the second row (including the large Enter key) represent most of the white notes of these octaves, the notes represented by these keys also being marked on the faces of the keys.
  • the same pattern is repeated in the third and fourth rows of the keys of the piano group 30, though progressively fewer keys are assigned to the piano group in the latter rows.
  • the diatonic piano octaves represented by the two pairs of key rows are contiguous.
  • chord keys 32 To the left of piano keys 30, and including (i) the lefthand PC control keys, (ii) the far left symbol keys (namely, ⁇ , 1 , 2, Q, W, A, S, Z and X) and (iii) the spacebar (marked 7), is the group of chord keys 32.
  • the chord keys there are twelve chord keys (the chords for the key of C being indicated by markings on the faces of the keys in Figure 3) and four chord control keys (m7, M7 and 7) by the use of which all 48 chords can be generated.
  • Pressing the m7 and C chord keys together will generate a PC keyboard signal that is converted by interface 12 into the MIDI code for the component notes of the C minor 7 th chord , M7 and C will elicit the C major 7 th chord , m and C will elicit C minor, while 7 (spacebar) and C will elicit the dominant C7 th chord.
  • the allocation of the C major chords to the chord keys 32 is default, that is it occurs upon power-up or reset (key RST Figure 3).
  • the keypad group 34 is labelled 'Bass, Drums and Scales' to indicate the three modes of operation already indicated.
  • the key-caps are marked to show the default allocation of musical notes. This is the sale of C major with the root note (PC keypad key 1 ) set two octaves below the root note of the C major chord elicited by chord-key C of chord group 32.
  • the key marked 'MIDI-out' is used to select a prerecorded MIDI signal for transmission to the sound system along with the keyboard output; that marked 'MIDI- in' is used to select a MIDI input signal for transmission to the sound system instead of the keyboard output.
  • the key marked 'MP' is used to toggle a multi-layering function in which the notes played are sent to more than one MIDI channel and therefore given more than one voicing.
  • the key marked 'KEY' is used to shift the musical key of the keypad group 34 when in bass mode.
  • the keys marked TSP t" (with an up-arrow) and TSP I' (with a down arrow) are used to respectively effect the up-scale and down-scale transposition of the chords elicited by key group 32 and to the bass and scales notes generated by keypad group 34.
  • Operation of the key marked 'ACB' causes a bass note to be added to all chords elicited by key group 32, the added base note being one or two octaves below the root note of the chord.
  • the key marked 'ABS' is used to select the scale to be played in the scale mode of the keypad group 34.
  • the keys marked 'V I' and .'V t' are used to decrease and increase the volume of the music output to the sound system; those marked OCT4-' and OCT ⁇ ' are used to shift the octave of the notes output by the keys of the piano group an octave down and an octave up respectively; while those marked ⁇ /EL 1 " and 'VEL .' are used to effect an increase or decrease in the attack of the sound elicited by the keys of the piano group, the keys of the chord group and the keys of the manual sequencer group.
  • PC function keys together with PC keys Esc, Print-Scrn, Scroll-Lock and Pause-Break (which form part of the Control & Drums group 36), are primarily used to multiplex and determine the musical functions of the keys of the other groups.
  • the key markings indicating musical functions shown in Figure 3 will now be briefly explained.
  • the key marked 'RST effects the resetting of the keyboard to its default settings.
  • Those marked 'CRD' with numbers 1 -3 when used with a control key marked C-1 (located in the fifth row of keys), effect changes in the allocations of chords to the chord keys of group 32, while those marked 'SCL' 1-2, when used with key C-1 , effect the selection of the musical scale employed in the scale mode of the keypad group 34.
  • the use of the four keys marked 'DRM' 1-4 when used with a control key marked C-2 (located in the fifth row of keys), effects the selection of the percussion or drum kits applied to the PC function keys (in the drum mode) and to the keyboard group 34 in the drums mode.
  • the PC function keys Upon power-up, the PC function keys are assigned a default set of percussion sounds, including drums and, unless used with control keys C-1 and C-2 will elicit the default sound.
  • the key 'FX' when used with control key C-2, allocates pre-recorded sound effects to the piano keys. That marked 'SEQ' is used to control a sequencer connected to the interface, while that marked 'MIDI CC is used to place the joystick output onto the MIDI continuous controller channel to effect pitch bend or a wha-wha effect.
  • the tabulation of Figure 4 illustrates the conversion -- effected by interface 12 -- of the PC code (in decimal format) output from the PC keypad into a MIDI code (also in decimal format) for each of the three music modes of operation of the keypad when used as a manual sequencer.
  • the MIDI codes will normally be output on any one or more of MIDI piano channels 4-6.
  • pressing PC keypad key 0 upon power-up, pressing PC keypad key 0 generates PC-keyboard code 99.
  • This is received by interface 12 and converted to MIDI code 31 which indicates a frequency corresponding to G in the C major scale.
  • PC code 99 results in MIDI code 41 corresponding to F.
  • FIG. 5 is a block diagram of the interface 12, while Figure 6 provides a systems diagram of the combined keyboard and interface when operating in the music mode. Referring particularly to Figure 5, interface 12 is based around the operation of a dedicated microprocessor 40 that is connected to two EPROM memory chips 42 and 43.
  • Chip 42 contains factory-defined data for keyboard key allocations, the conversion of PC keyboard signals to MIDI signals, and other factory-set data.
  • Chip 43 stores data relating to user-defined preferences and can be selectively overwritten under user control. The data in each memory is conveniently arranged in the form of look-up tables, not unlike the tabulations of Figure 4.
  • PC keyboard 14 is connected to input socket 44 and is processed by a handler circuit 46 which puts the code into a form suited to microprocessor 40.
  • Handler circuit 46 has an output which is connected to an output socket 48 that may be connected, in turn, to keyboard port of PC 20.
  • signals are passed from keyboard 14 directly to the PC 20 so that the keyboard functions as a conventional computer keyboard. Operation of the PC Ctrl and End keys together may be used to toggle between the MIDI and computer input modes.
  • MIDI side of interface unit 12 On the MIDI side of interface unit 12 are a combined input/output socket 50 for connection to the sound card of PC 20, a standard MIDI output 52 for sound generator 22 and a standard MIDI input socket 54 which accepts the output from a standard MIDI piano-style keyboard 18 ( Figure 1 ).
  • Microprocessor 40 is interfaced with these input/outputs via a MIDI converter circuit 56, a MIDI combiner circuit 58 and a MIDI driver circuit 60.
  • a joystick input port 62 is provided for connection to joystick 16, being interfaced to microprocessor 40 via an adapter circuit 64.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de conversion de signal (12) permettant d'interfacer un clavier d'ordinateur (14) avec un générateur audio MIDI tel qu'une carte son montée dans un ordinateur (20) ou un générateur audio autonome (22). L'interface (12) peut également recevoir des entrées d'un clavier MIDI (18) et d'un manche à balais d'ordinateur (16), lequel est destiné aux distorsions sonores. L'interface (12) est pourvue de connecteurs d'E/S (44, 48, 52, 50, 54 et 62) et des circuits d'adaptateurs associés (46, 60, 58, 56 et 64) permettant les communications avec un microprocesseur (40). Ce microprocesseur (40) accède à des mémoires ROM (42, 43) contenant des données usine et des données utilisateur prédéfinies. Selon l'un des modes de fonctionnement, les signaux d'ordinateur générés par les touches du clavier sont convertis en signaux MIDI correspondant aux notes d'une gamme musicale sélectionnable de façon que la note fondamentale de la gamme puisse être obtenue au moyen de la même touche de clavier.
PCT/AU1998/000475 1997-06-18 1998-06-18 Interface midi de clavier d'ordinateur WO1998058363A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NZ501735A NZ501735A (en) 1997-06-18 1998-06-18 Method of converting the output of a computer keyboard having a numerical keypad into MIDI-format signals suitable for input to MIDI-compatible devices
CA002295201A CA2295201A1 (fr) 1997-06-18 1998-06-18 Interface midi de clavier d'ordinateur
AU80919/98A AU736971B2 (en) 1997-06-18 1998-06-18 Computer keyboard-midi interface

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO7418A AUPO741897A0 (en) 1997-06-18 1997-06-18 Computer keyboard-midi interface
AUPO7418 1997-06-18

Publications (1)

Publication Number Publication Date
WO1998058363A1 true WO1998058363A1 (fr) 1998-12-23

Family

ID=3801710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1998/000475 WO1998058363A1 (fr) 1997-06-18 1998-06-18 Interface midi de clavier d'ordinateur

Country Status (4)

Country Link
AU (1) AUPO741897A0 (fr)
CA (1) CA2295201A1 (fr)
NZ (1) NZ501735A (fr)
WO (1) WO1998058363A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905233A1 (de) * 1999-02-09 2000-08-31 Reinhard Franz Elektronisches Musikinstrument
WO2001069399A2 (fr) * 2000-03-17 2001-09-20 Naguy Caillavet Interface materielle et logicielle de controle par messages midi
WO2002015641A2 (fr) * 2000-08-17 2002-02-21 Andy & Bob's Crazy Enterprises Inc. Systeme de son multicanaux
GB2370151A (en) * 2000-12-13 2002-06-19 Robert Deith Musical alphanumeric keyboard
FR2849951A1 (fr) * 2003-01-15 2004-07-16 Didier Sarrazit Instrument de musique informatique midi, auto-modal, se jouant avec un stylet et un joystick
FR2870977A1 (fr) * 2004-05-26 2005-12-02 Pouge Sarl Dispositif musical et procede associe
EP2438589A4 (fr) * 2009-06-01 2016-06-01 Music Mastermind Inc Système et procédé de réception, d'analyse et d'émission de contenu audio pour créer des compositions musicales

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088378A (en) * 1990-11-19 1992-02-18 Delatorre Marcus M Method of adapting a typewriter keyboard to control the production of music
US5565641A (en) * 1994-03-28 1996-10-15 Gruenbaum; Leon Relativistic electronic musical instrument
US5646648A (en) * 1994-12-05 1997-07-08 International Business Machines Corporation Musically enhanced computer keyboard and method for entering musical and textual information into computer systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088378A (en) * 1990-11-19 1992-02-18 Delatorre Marcus M Method of adapting a typewriter keyboard to control the production of music
US5565641A (en) * 1994-03-28 1996-10-15 Gruenbaum; Leon Relativistic electronic musical instrument
US5646648A (en) * 1994-12-05 1997-07-08 International Business Machines Corporation Musically enhanced computer keyboard and method for entering musical and textual information into computer systems

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905233A1 (de) * 1999-02-09 2000-08-31 Reinhard Franz Elektronisches Musikinstrument
DE19905233B4 (de) * 1999-02-09 2005-04-07 Reinhard Franz Elektronisches Musikinstrument
WO2001069399A2 (fr) * 2000-03-17 2001-09-20 Naguy Caillavet Interface materielle et logicielle de controle par messages midi
FR2806497A1 (fr) * 2000-03-17 2001-09-21 Naguy Caillavet Interface materielle et logicielle de controle par messages midi
WO2001069399A3 (fr) * 2000-03-17 2002-04-04 Naguy Caillavet Interface materielle et logicielle de controle par messages midi
WO2002015641A2 (fr) * 2000-08-17 2002-02-21 Andy & Bob's Crazy Enterprises Inc. Systeme de son multicanaux
WO2002015641A3 (fr) * 2000-08-17 2003-04-24 Andy & Bob S Crazy Entpr Inc Systeme de son multicanaux
GB2370151A (en) * 2000-12-13 2002-06-19 Robert Deith Musical alphanumeric keyboard
FR2849951A1 (fr) * 2003-01-15 2004-07-16 Didier Sarrazit Instrument de musique informatique midi, auto-modal, se jouant avec un stylet et un joystick
FR2870977A1 (fr) * 2004-05-26 2005-12-02 Pouge Sarl Dispositif musical et procede associe
WO2005119646A1 (fr) * 2004-05-26 2005-12-15 La Pouge Dispositif musical et procede associe
EP2438589A4 (fr) * 2009-06-01 2016-06-01 Music Mastermind Inc Système et procédé de réception, d'analyse et d'émission de contenu audio pour créer des compositions musicales

Also Published As

Publication number Publication date
AUPO741897A0 (en) 1997-07-10
NZ501735A (en) 2001-06-29
CA2295201A1 (fr) 1998-12-23

Similar Documents

Publication Publication Date Title
US5565641A (en) Relativistic electronic musical instrument
US5214231A (en) Apparatus for electronic teaching accompaniment and practice of music, which is independent of a played musical instrument
US5971635A (en) Piano-style keyboard attachment for computer keyboard
US20080271594A1 (en) Electronic Musical Instrument
US5741993A (en) Electronic keyboard having a discrete pitch bender
US6444888B1 (en) Musical computer keyboard apparatus and method
US5852252A (en) Chord progression input/modification device
EP1625567B1 (fr) Systeme permettant l'utilisation des touches blanches de claviers d'instruments de musique pour des gammes selectionnees
JP6263946B2 (ja) 発音状態表示プログラム、装置及び方法
JP3774928B2 (ja) 演奏補助装置
US5322967A (en) Method and device for executing musical control with a pedal for an electronic musical instrument
WO1998058363A1 (fr) Interface midi de clavier d'ordinateur
US20050087061A1 (en) Musical keyboard pitch functions
AU736971B2 (en) Computer keyboard-midi interface
US6967277B2 (en) Audio tone controller system, method, and apparatus
JPH0744162A (ja) 伴奏装置
GB2209425A (en) Music sequencer
EP0039802B1 (fr) Instrument de musique électronique
RU2155387C1 (ru) Музыкальный синтезатор (варианты)
JPS6226791Y2 (fr)
US5541355A (en) Electronic musical instrument having an automatic peformance function
US5418324A (en) Auto-play apparatus for generation of accompaniment tones with a controllable tone-up level
JP2002318579A (ja) 演奏用楽譜、表示装置および演奏用楽譜の記譜法
JP3450542B2 (ja) 伴奏パターン作成装置
JPH1078779A (ja) 自動演奏装置、自動演奏方法及び記録媒体

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 80919/98

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 501735

Country of ref document: NZ

ENP Entry into the national phase

Ref document number: 2295201

Country of ref document: CA

Ref country code: CA

Ref document number: 2295201

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 09446344

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1999503418

Format of ref document f/p: F

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
WWG Wipo information: grant in national office

Ref document number: 80919/98

Country of ref document: AU