There is one level of setup needed to get the digital sound processor to work and if you don't do this there will be no audio via the USB. (indianexpress.com)
Now even 7.1 is standard and 9 - channel and 11 - channel surround sound processors are increasingly common. (svsound.com)
Apart from sound processor, a setup of overhead speakers is required to provide next - level surround sound experience. (techone3.in)