I'm trying to measure the phase and amplitude of four 1KHz audio pulses from four separate
QSD's. The 1khz tone upstream is from one source. I'm told that the output Z of these is low enough to use balanced mic inputs in a audio a to d, (~300 ohm input should be fine). I'm looking intially at a cheap 4 channel interfaces like a MOTU M4 4x4, (115db dynamic range, 60db gain). I don't know if this would do the job. Two things I need in hardware as well as software. I need to have phase correct sine display and if possible to resolve 1uV. So I'm looking for software that can give me in phase the fours sources. I'm also told the 115db dynamic range should be good at least for the start. So I'm looking for thoughts on hardware and software recomendations.
Thank you for checking out, Michael
QSD's. The 1khz tone upstream is from one source. I'm told that the output Z of these is low enough to use balanced mic inputs in a audio a to d, (~300 ohm input should be fine). I'm looking intially at a cheap 4 channel interfaces like a MOTU M4 4x4, (115db dynamic range, 60db gain). I don't know if this would do the job. Two things I need in hardware as well as software. I need to have phase correct sine display and if possible to resolve 1uV. So I'm looking for software that can give me in phase the fours sources. I'm also told the 115db dynamic range should be good at least for the start. So I'm looking for thoughts on hardware and software recomendations.
Thank you for checking out, Michael
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