Wireless Audio Effects

by Lohith Kini, Rahul Shroff, Spyridon Zoumpoulis

 

Abstract

Our final project will be designing and implementing an audio system in which the audio signal is inputted, wirelessly transmitted, audio filtered and equalized. The audio is inputted through a micro- phone and is digitized using an Analog-To-Digital converter with the LM4550 AC'97 Codec. The audio signal is then compressed using the Discrete Cosine Transform (DCT) and is wirelessly transmitted and received using a low power RF transceiver. The signal, after being decompressed, is then processed using a Fast Fourier Transform module (FFT) and its Inverse (IFFT), as well as an equalizer module.

 

Links To Files

Report Appendix (PDF)

 

Photos