The project used interesting approach for reducing speaker distortion and increasing bass response. A dual coil speaker driver is used but only one of the coils is connected to the power amplifier – the other is used for electromotive feedback. This method is not new, but is difficult to implement in pure analogue world [...]
Spectrum analyzers are employed in most of the modern signal processing systems for measuring the distribution of signal energy in frequency. An audio spectrum analyzer is used for measurements in the audible frequency spectrum (from 0 to 20000 Hz) and can be a very powerful tool for keeping a studio well tuned. A Digital, [...]
The aim of this project was to add remote-control convenience to the hi-fi preamp without compromising sound quality. It replacing the existing volume control with high-quality optical rotary encoder controlled by PIC 16F877. The project has 7 input sources and 5.1 surround sound.
This Audio Spectrum Monitor project use SG12232C graphic LCD to display an audio wave forms in real-time like a digital oscilloscope. It also features a FFT spectrum analysis too. This can also be applied to radio frequency band. As main processor, the project equipped with Microcontroller AVR ATmega8. These are some wave forms that can [...]
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