Popular Post mitchco Posted May 19, 2022 Popular Post Share Posted May 19, 2022 @jrobbins50 agree with @El Guapo Also, the M30 is going to have a much better omnidirectional polar response above 10 kHz. While it may not apply in your case, moving to an analog mic and using an interface that has both and AD/DA converter means one clock and less opportunity for timing errors. With a separate ADC from the DAC, and unless using the same clock, the opportunities for timing errors increase considerably. This is the number one measurement issue I deal with from a client perspective when taking measurements with folks using USB mics. Even with AL's clock drift correction enabled. It is easy to tell. Simply setup the measurement mic and take 3 sets of measurements back to back. Look at Audiolense's Measurement window->Delay in ms column after each measurement. The delays should be within 0.02ms of each other for each respective measurement for the same channel. If it is not, and depending how much it is off, there is not much one can do, except use an integrated AD/DA converter with one clock to take the measurements. Typically means using a pro audio interface. El Guapo, MFJG and The Computer Audiophile 3 Accurate Sound Link to comment
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