Create a musical organ using micro-controller
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Create a musical organ using AT89C51 MCU.My project on the musical organ which we can also call a mini piano. In this project I generating the same frequencies whch are exactly same as sa re ga ma pa dha ni sa by using the controller
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This document lists equipment inventory for three rooms - Drama, Dance, and Hall. The Drama room contains a Toshiba laptop, projector with powered speakers, CD player, iPod lead, Zero 88 dimmer pack, Strand lighting desk, and 10 CCT Minuette Fresnels with gel frames. The Dance room has a Sony laptop, projector with speakers, Samsung TV, Samsung DVD/Video player, Nu DVD player, 2 Behringer powered speakers, Gemini mixer, and Numark double CD player. The Hall contains a Dell PC, 2 Hitachi projectors, 4 HK passive speakers, 4 JBL passive speakers, 5 Behringer amps, Yamaha MG16
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A couple of basic pointers from our sound recording workshop to guide those with using Logic Pro 9 specifically for recording music (do bare in mind however that some versions of logic pro will be laid out differently).
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This document provides instructions for interfacing a 4x4 matrix keypad with a Raspberry Pi. It explains that matrix keypads have a simple architecture with four rows and four columns, and each overlapping row and column intersection forms a button. It describes how to construct the keypad using switches and connect the rows and columns to input and output ports. It then explains the scanning process to detect which button is pressed by making each row low and reading the column inputs one by one. Finally, it provides Python code to initialize GPIO pins for the keypad, define a scanning function, and print which keys are currently pressed.
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This document summarizes the components and working of a music player device controlled by user input. The device uses an Arduino, musical instrument shield, piezodiscs, and a resistor ladder circuit with switches to detect button presses and play corresponding notes. When buttons are pressed, different voltages are sent to an analog input to trigger the associated note. The device allows playing single notes or combinations by pressing multiple buttons.
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CHAPTER – 5 Audio
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➢ Without sound, the presentation will be dull.
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This document lists equipment inventory for three rooms - Drama, Dance, and Hall. The Drama room contains a Toshiba laptop, projector with powered speakers, CD player, iPod lead, Zero 88 dimmer pack, Strand lighting desk, and 10 CCT Minuette Fresnels with gel frames. The Dance room has a Sony laptop, projector with speakers, Samsung TV, Samsung DVD/Video player, Nu DVD player, 2 Behringer powered speakers, Gemini mixer, and Numark double CD player. The Hall contains a Dell PC, 2 Hitachi projectors, 4 HK passive speakers, 4 JBL passive speakers, 5 Behringer amps, Yamaha MG16
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A couple of basic pointers from our sound recording workshop to guide those with using Logic Pro 9 specifically for recording music (do bare in mind however that some versions of logic pro will be laid out differently).
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This document provides instructions for interfacing a 4x4 matrix keypad with a Raspberry Pi. It explains that matrix keypads have a simple architecture with four rows and four columns, and each overlapping row and column intersection forms a button. It describes how to construct the keypad using switches and connect the rows and columns to input and output ports. It then explains the scanning process to detect which button is pressed by making each row low and reading the column inputs one by one. Finally, it provides Python code to initialize GPIO pins for the keypad, define a scanning function, and print which keys are currently pressed.
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This document summarizes the components and working of a music player device controlled by user input. The device uses an Arduino, musical instrument shield, piezodiscs, and a resistor ladder circuit with switches to detect button presses and play corresponding notes. When buttons are pressed, different voltages are sent to an analog input to trigger the associated note. The device allows playing single notes or combinations by pressing multiple buttons.
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This document discusses interfacing a hex keypad to an AT89C51 microcontroller. It provides details on the components required, including the microcontroller, keypad, and 7-segment display. It describes how the keypad is scanned using column scanning to detect key presses and determine the pressed key. The programming for the microcontroller is also outlined, showing how it initializes ports, scans the keypad, looks up the pressed key in a lookup table to display on the 7-segment display. Potential issues faced include debouncing and directly powering the display. Future work proposed includes adding an LCD module to create a basic calculator.
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This document provides instructions for using a functional music keyboard. It discusses basic techniques like playing scales with proper finger positioning. It also explains functions of the keyboard like using effects to alter tone and dynamics. Finally, it discusses using the keyboard to input MIDI data into a digital audio workstation for creating music, triggering samples, and more.
unit 37 functional music keyboard
This document provides instructions for using a functional music keyboard. It discusses basic techniques like sitting posture and playing scales with proper finger technique. It also covers understanding keyboard functions, such as using effects to alter tone and dynamics or chords to convey different feelings. Finally, it explains how to use the keyboard to input MIDI data into a digital audio workstation to create melodies, basslines, and trigger samples for music production.
Stepbystep guide
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2) Key steps include connecting the sound desk to speakers using XLR cables, connecting a sound source like a CD player to the desk using a phono lead, turning the sound desk on before other equipment to avoid speaker popping, and adjusting gain levels and panning settings.
3) The final steps cover setting the master volume, adjusting speaker and desk volumes, and fine-tuning the equalization settings to improve the sound quality coming from the speakers.
Keybord
The keyboard is a peripheral device that directly connects to the motherboard. It contains a matrix of switches that are continuously scanned to detect key presses and generate scan codes. There are two main types - serial keyboards output data bit by bit while parallel keyboards output all bits simultaneously. Common keyboard types include the 101-key and 104-key keyboards. The keyboard connects to the computer via connectors like PS/2 or USB and contains a microcontroller that detects key presses and sends codes to the computer. Newer ergonomic designs have emerged to improve comfort.
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2. An array is used to store different note frequencies that correspond to each switch. When a switch is pressed, the analog reading is checked against values mapped to each note frequency to play the correct tone.
3. The program demonstrates using an array to store musical note frequencies, reading the analog pin to determine which switch is pressed, and playing the corresponding tone using the tone() function while stopping playback with noTone() when no buttons are pressed.
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This document discusses interfacing a hex keypad to an AT89C51 microcontroller. It provides details on the components required, including the microcontroller, keypad, and 7-segment display. It describes how the keypad is scanned using column scanning to detect key presses and determine the pressed key. The programming for the microcontroller is also outlined, showing how it initializes ports, scans the keypad, looks up the pressed key in a lookup table to display on the 7-segment display. Potential issues faced include debouncing and directly powering the display. Future work proposed includes adding an LCD module to create a basic calculator.
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unit 37 functional music keyboard
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Stepbystep guide
1) The document provides a 10 step guide to setting up a sound desk, including gathering equipment, plugging everything into power sources, connecting the sound desk to speakers and a sound source, turning everything on, adjusting levels and EQ settings.
2) Key steps include connecting the sound desk to speakers using XLR cables, connecting a sound source like a CD player to the desk using a phono lead, turning the sound desk on before other equipment to avoid speaker popping, and adjusting gain levels and panning settings.
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Keybord
The keyboard is a peripheral device that directly connects to the motherboard. It contains a matrix of switches that are continuously scanned to detect key presses and generate scan codes. There are two main types - serial keyboards output data bit by bit while parallel keyboards output all bits simultaneously. Common keyboard types include the 101-key and 104-key keyboards. The keyboard connects to the computer via connectors like PS/2 or USB and contains a microcontroller that detects key presses and sends codes to the computer. Newer ergonomic designs have emerged to improve comfort.
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1. The document describes building a small musical keyboard using a resistor ladder circuit with switches connected to an analog pin on an Arduino. The resistor ladder allows reading multiple switch states on a single analog pin.
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Create a musical organ using micro-controller
- 1. United International University Presented By: Mahamudul Karim Khondaker Project Name: Create a musical organ using AT89C51 MCU
- 3. • AT89C51 • 8 push button key pad • Resistor • Capacitor • Speaker (8ohm,25W) • Crystal • Digital oscilloscope
- 4. • Check keypad key pressed or not. • Read data from table to memory. • if pressed then wait for debouching and send data to port 1. • for that key use table data from memory to generate a particular frequency. • generate a tone through the speaker. • Return to 1 step.
- 5. Ground All Rows All keys open? Read all columns All keys down? Wait for debouching Read all columns All keys down? Ground next row Read all columns All keys pressed in this row? Find which key is pressed Get scan code from tables Generate respective frequency with respect to the rate given in the memory S t a r t End Read all columns No No No Yes Yes No Yes Yes Return
- 7. PCV Designee
- 12. Our project on musical organ which we can also called mini piano. When we do this project we know how the piano work. In this project we are generating the same friquencies whch are excately same as sa re ga ma pa dha ni sa by using the controller