MicroController Pros Home Page My Account  Cart Contents  Checkout  
  Store » I/O Modules » Audio/Sound Modules » MIKROE-684 My Account  |  Cart Contents  |  Checkout   
Quick Find
Enter keywords to find the product you are looking for in the Quick Find field above

or use
Advanced Search
Accessory Boards->
ADI Blackfin
Atmel AVR->
Cypress PSoC
Microchip PIC->
Silicon Labs
ST Microelectronics->
Texas Instruments->
Embedded Ethernet->
Embedded Software->
I/O Modules->
  Analog I/O
  Audio/Sound Modules
  Digital I/O Building Blocks
  Ethernet I/O Control
  Memory Cards
  RS232 to TTL
  Serial to Bluetooth
  Serial to PCI
  USB Modules->
  Video Modules
  RS485 Modules->
Parts & Components->
Pick & Place Tools
Programmable Logic (PLD)
Prototype PCBs->
ROM/Flash Emulators
Test & Measurement->
Tutorial Software
Universal Programmers->
Intro to Embedded Tools
Embedded News Digest
Useful Resources
Shipping & Returns
Warranty & Liability
Privacy Notice
Conditions of Use
Contact Us
Digital MIDI-controlled Bass Synthesizer Board (BassBoy) US$29.00

Digital MIDI-controlled Bass Synthesizer Board (BassBoy)

BassBoy is a monophonic digital MIDI-controlled bass synthesizer. With BassBoy, your MIDI music will sound like a real live stage band. Powerful 16-bit DSP signal processing and high-performance DAC ensure that you will enjoy each and every sound.

The unit consists of an oscillator which generates sawtooth and square waveforms using 16-bit band-limited wavetables, thus making the number of harmonics limited. After that, the signal itself goes through a simple implementation of a Moog filter, whose frequency range is chosen by MIDI commands and which is affected by the level of the envelope. The filtered signal then comes to the controlled amplifier, which creates the signal shape, and in the end through a DAC (WM8762) and pre-amp circuit that goes to the 6.35mm audio jack.

Note that a MIDI DIN connector is not included. MIDI input is via a two-pin header (to which you can wire a MIDI DIN connector's pins 4 and 5).

The BassBoy runs on an ATxmega32D4 microcontroller. The firmware was written in straight assembly, ensuring efficient operation. Sampling frequency is 31.25 kHz, which generates audio in the range up to 15.625 kHz. Although it's based on an 8-bit processor, the signal processing inside the unit is 16-bit.

View a video of BassBoy in action.

Download the BassBoy user manual for details on usage and effects.

BassBoy Specifications

  • Power supply: +10V to +13V DC max.
  • Current consumption: 100mA max.
  • MIDI input isolated by opto-coupler.
  • Maximum output voltage: Approx. 2.2VRMS = 6.2V peak-to-peak output impedance 1MΩ; approx. 1.95VRMS = 5.5V peak-to-peak output impedance 10kΩ (measured on the 6.35mm jack with generated sine wave directly toward DAC). Output impedance >10kΩ.
  • Plays notes in range of 32.70 Hz to 523.25 Hz, i.e. MIDI notes 24 through 72 (C1-C5). Maximum deviation 1.5 cents.

This product was added to our catalog on Thursday 02 June, 2011.


Customers who bought this product also purchased
24LC256-I/P Serial EEPROM, 8 DIP, 32k24LC256-I/P Serial EEPROM, 8 DIP, 32kUS$1.28

Three Color RGB LED, 5mm, Clear, Common CathodeThree Color RGB LED, 5mm, Clear, Common CathodeUS$1.95

Shopping Cart more
0 items
What's New? more
Flowcode 7 for PIC, AVR, Arduino, ARM - Pro 2 User
Flowcode 7 for PIC, AVR, Arduino, ARM - Pro 2 User
Specials more
Male 5-pin, 3.81mm Terminal Block, right angle, PCB mount
Male 5-pin, 3.81mm Terminal Block, right angle, PCB mount
Tell A Friend

Tell someone you know about this product.
Notifications more
NotificationsNotify me of updates to Digital MIDI-controlled Bass Synthesizer Board (BassBoy)
Reviews more
Write ReviewWrite a review on this product!
  Sunday 22 September, 2019   List of all our Products

Copyright © 2003-2017 MicroController Pros LLC
Powered by osCommerce