Thanks JohnAs a general point, do not leave the input and output on default, set them to the option offered in the drop-down menu.
What are you trying to achieve by making measurements with a timing reference? If you can explain what you are trying to do it will be easier to understand whether the acoustic timing reference will help and, if so, how you should use it.
Hi John thank youAlignment of which speakers? If it is the main speakers and/or surrounds, use a tape measure. If it is the sub then the acoustic timing reference will not be helpful as it cannot accurately determine delays for subwoofers. There are other threads on setting sub delays, such as this one.
Thanks John to measure the surrounds I would need to use 90 degree file?It could be used for that, but it will take a lot longer than just using a tape measure as with Java drivers you can only send signals to the left or right channels so you will have to manually shift connections to the other channels somehow.
Hi John 0-20,000hz + only left channel playingThe reference channel should measure zero, it can't be delayed relative to itself. What frequency range did you measure over? Was any other channel playing at the same time?