REALIZATION OF PENTAEQUALIZER: 5.1 CHANNEL GRAPHIC EQUALIZER FOR IMPROVED SURROUND SOUND

Ninad Dileep Mehendale

Abstract: Home theaters and surround sound systems had become very popular in last few decades. Majority of these multi-channel systems are, without any channel graphic equalization and hence many time proves inefficient for sounds which are not recorded with multichannel mics. Pentaequalizer provide a combined hardware and software system that provide graphic equalizer for the sounds recorded with any platform (viz. Mono, stereo etc.). System has in-built mono to stereo and stereo to 5.1 channel audio conversion. This 5.1 channel graphic equalizer is named as pentaequalizer and it will be revolutionary innovation in terms of back compatibility of sound signals. The initial results show that improved SNR of 2.4dB and active noise reduction (ANR) of 6dB. Delay of the system varies from 1ms to 3ms depending upon type of audio input (e.g. Mono, Stereo and 5.1 Ch.)

Keywords: Pentaequalizer, Mono to stereo, Stereo to 5.1 Channel, and digital sound systems

DOI: https://doi.org/10.15623/ijret.2017.0609002