Design and Construction of Multi-input Audio Mixer

Design and Construction of Multi-input Audio Mixer

Authors

  • A. J. Ezihe Federal University of Technology, Owerri, Nigeria.
  • B. C. Eke Federal University of Technology, PMB 1526, Owerri, Nigeria
  • C. J. Echewodo Federal University of Technology, PMB 1526, Owerri, Nigeria

Keywords:

Audio Mixer

Abstract

Due to exorbitant prices, difficulty in operation, and high cost of maintenance of existing audio console, a simple, efficient, and cost-effective multi-input audio mixer has been designed and constructed. A simple design achieved this with three sections: power supply, pre-amplifier, and power amplifier sections. The audio console was designed with a high-grade operational amplifier with very low distortions.  The power supply section was constructed by connecting the secondary terminals of 12 V transformers to a bridge rectifier for optimum power supply to the system. The pre-amplifier section was constructed using a BC547 NPN transistor. The power amplifier was constructed using the LM386 IC for high-quality output. The design carefully combined (audition/program) units to achieve good mixing and balancing. The design was done to achieve a maximum gain with refined audio output.    

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Author Biographies

A. J. Ezihe, Federal University of Technology, Owerri, Nigeria.

Department of Physics

B. C. Eke , Federal University of Technology, PMB 1526, Owerri, Nigeria

Department of Physics

C. J. Echewodo, Federal University of Technology, PMB 1526, Owerri, Nigeria

Department of Physics

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Published

2020-08-30

How to Cite

A. J. Ezihe, B. C. Eke, & C. J. Echewodo. (2020). Design and Construction of Multi-input Audio Mixer: Design and Construction of Multi-input Audio Mixer. To Physics Journal, 6, 1-10. Retrieved from https://purkh.com/index.php/tophy/article/view/794

Issue

Section

Research Articles

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