I'm interested to know if anyone has designed a simple phase shift circuit that is accurate in the midrange of sound (about 300Hz to 5kHz), IMHO, since this is an arbitrary surround sound creation method, significant phase shift errors outside of the midrange don't seem important.
My purpose for the circuit to be able to make a simple SQ (270 degrees) stereo enhancement preprocessor.
All that would be needed (AFAIK) is 2 input buffers, 2 phase shifters, 2 summing circuits to output an SQ stereo enhancement encoded stereo signal (for a Surround Master in SQ decode mode, for example).
Anyone have such a circuit design or be willing to design one (and share it here in QQ)?
Kirk Bayne
My purpose for the circuit to be able to make a simple SQ (270 degrees) stereo enhancement preprocessor.
All that would be needed (AFAIK) is 2 input buffers, 2 phase shifters, 2 summing circuits to output an SQ stereo enhancement encoded stereo signal (for a Surround Master in SQ decode mode, for example).
Anyone have such a circuit design or be willing to design one (and share it here in QQ)?
Kirk Bayne