Viper4android (V4A) ViPER’s Audio is an audio enhancing software to provide everyone with better audio experiences in various platforms such as smartphones and PCs. ViPER’s Audio is founded by Euphy Wong (known as ViPER520). ViPER’s Audio has been a popular audio mod in China. Co-founder Jasper Loo (known as zhuhang) extended its popularity globally through xda-developers forum. It has now gained fame and stand its ground in the audio mod field.