Software, namely, for audio digital signal processing and conversion of dual channel systems to a multi-channel sound system or conversion from multi-channel to dual channel systems, improving the audio characteristics of an audio stream, creating virtual rooms that are perceived larger, extracting signal streams to enhance upmixing, processing monophonic signals, processing compressed audio signals, processing multichannel input signals, reducing noise and howling in input audio signals; and audio systems and components, namely, loudspeakers, amplifiers, pre-amplifiers, radios, electronic microprocessors, digital signal processors, and video monitors; [ GPS navigation device capable of receiving global positioning satellite data; ] digital signal processing computer hardware and software; apparatus for processing sound in the nature of digital, multi channel and surround sound processors; software for active noise cancellation, electronic sound synthesis and engine order cancellation for use in automobiles