MICROPROCESSOR AND TRANSISTORS BASED AUTOMATION OF MUSICAL ELECTRONIC KEYBOARD

Abstract

ABSTRACT The musical electronic keyboard is played using hands manually using the music notes. It is possible to automate this process using a Microprocessor and transistors arrangements with musical electronic keyboard. In this paper, discussed about hardware, algorithms and procedures to play the music by writing assembly language programming. The proposed method is different from MIDI conversion. In MIDI, the music notes are scanned and using image processing, it is extracted and converted into digital signals.

Specification

MICROPROCESSOR AND TRANSISTORS BASED AUTOMATION OF MUSICAL
ELECTRONIC KEYBOARD
I PREAMBLE TO THE DESCRPTION
THE FIELD OF INVENTION (MUSIC INDUSTRY)
In the proposed method of playing the keyboard, the musician doesn't have to play the keyboard using his/her
hands manually. Instead, through the assembly language programming using microprocessor and transistors
connected between microprocessor data output and to the musical electronic keyboard keys, the music can be
played.
Since there are 12 notes in the western music, the 12 keys are sufficient in the musical electronic
.keyboard to play the music using the proposed system.
BACKGROUND OF THE INVENTION
I. The musical notes are scanned and through image processing the musical notes are extracted and
the output is used for playing the music.
2. A new system for interacting with a visual keyboard for the purpose of controlling music generated
by meta-instruments was introduced. This system uses visual information only, with no force
feedback.
3. One impmtant problem in musical information retrieval. is automatic music transcription, which is
an automated conversion process from played music to a symbolic notation such as MIDI tile.
Since the accuracy of previous audio-based transcription systems is not satisfactory, an innovative
computer vision-based automatic music transcription system named cia Vision to perform piano
music transcription was introduced. ·
4. Design of an electronic piano playing robot which can automatically play electronic piano
according to a user-defined piano sheet music, was also analysed.
5. Expressive timing methods were described that map pianists' musical thoughts to sounded
performance.
6. A computer accompaniment system capable of providing musical accompaniment for an ensemble
of performers were described. The system tracks the performance of each musician in the ensemble
to determine current score location and tempo of the ensemble.
7. To facilitate music composition among children and students, the study examined the properties of
automated music composition, attempting to leverage this advanced technique to provide children
with an easy-to-learn and easy-to-accomplish method of composing music. A graphical interfacebased
automated music composition (GBAMC) software program which was developed and
discussed, was also analyzed .
8. A step-by-step procedure for generating music using the Long Short Tetm Memory Recurrent
Neural Network (LSTMRNN) and the designing of a circuit that enables the automatic pressing of
the keys of a piano (or keyboard) to play the generated music was discussed .
9. A novel approach to produce quality musical compositions using a memetic algorithm was also
analyzed.
SUMMARY OF THE INVENTION
Playing the keyboard, the musician doesn't have to play the keyboard using his/her hands
manually. Instead, through the assembly language programming using microprocessor and transistors
connected between microprocessor data output and to the musical electronic keyboard keys, the
music can be played.
MICROPROCESSOR AND TRANSISTORS BASED AUTOMATION OF MUSICAL
ELECTRONIC KEYBOARD
ABSTRACT
The musical electronic keyboard is played using hands manually using the music notes. It is possible to
automate this process using a Microprocessor and transistors arrangements with musical electronic keyboard.
In this paper, discussed about hardware, algorithms and procedures to play the music by writing assembly
language programming. The proposed method is different from MIDI conversion. In MIDI, the music notes
are scanned and using image processing, it is extracted and converted into digital signals.
MICROPROCESSOR AND TRANSISTORS BASED AUTOMATION OF MUSICAL
ELECTRONIC KEYBOARD
COMPLETE SPECIFICATION
Specifications
In the proposed method of playing the keyboard, the musician doesn't have to play the keyboard using his/her
hands manually. Instead, through the assembly language programming using microprocessor and transistors
connected between microprocessor data output and to the musical electronic keyboard keys, the music can be
played.
Since there are 12 notes_in the western music, the 12 keys are sufficient in the ~usical electronic
keyboard to play the music using the proposed system.
MICROPROCESSOR AND TRANSISTORS BASED AUTOMATION OF MUSICAL
ELECTRONIC KEYBOARD
DESCRIPTION
There are twelve notes in westem music. The seven "natural" notes of the C major scale are C, D, E,
F, G, A, B. The remaining five notes are C Sharp or D Flat, D Sharp orE Flat, F Sharp or G Flat, G Sharp or
A Flat, A Sharp or B Flat An electronic musical keyboard instrument has 36 keys. Seven keys for natural
notes and five keys for sharp or flat notes repeated in three octaves. The playing of keyboard is the ON or OFF
of these 36 keys with a timing. The timing of ON of a particular key has 3 types, namely one beat, half beat
and quarter beat
Since there are 12 notes in the westem music, the 12 keys are sufficient in the musical electronic
keyboard to play the music using the proposed system. Approximately, one beat is taken as 120 milliseconds
of ON of a particular key. Similarly, for half beat is taken as 60 milliseconds and quarter beat is taken as 30
milliseconds of ON of a particular key.
In the block diagram shown in Fig. I, 8086 Microprocessor is used. lt is chosen because it has 16-bit
data bus. Out of the 16 bits of the data bus, only firsl 12 bits are used to connect to the keys of the musical
keyboard via a transistor for each key. The transistor acts as an electronic switch, here. Whenever a positive
signal comes from the data bit, that transistor will activate the corresponding key of the 12 keys'musical key
board. From Do-D,,, it is connected to A-Sharp orB-Flat to C of the 12 keys musical keyboard. The data pins
and its connection to the 12 keys of the musical keyboard are shown in the Table I below.

We Claim
Claim: The musical keyboard can be played without using the hands. By using microprocessor,
transistor and assembly language programming, the musical keyboard can be played with more
accuracy than extracting the images from the musical notes using image processing.

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