Hi,
I'm trying to use REW to do some quasi-anechoic measurements. With ARTA and HolmImpulse the gating is straightforward. However, on REW I can't figure out what to do.
In IR windows, there is left window, window ref time, and right window. I simply want to apply a 5.5ms gate. If I put 0 for left window and 5.5ms for right window, I get a downward sloping curve that vastly underrepresents the treble output. If I use the default 125ms for left window and 5.5ms for right window, I get something comparable to ARTA and HolmImpulse but still doesn't seem quite right. And certainly the frequency resolution isn't 7Hz.
What should the settings be? What is this left window parameter?
Also, how do I measure the step response of the speaker for time alignment purposes? I can't see anything useful in the step response from the sine wave sweep.
Thanks
I'm trying to use REW to do some quasi-anechoic measurements. With ARTA and HolmImpulse the gating is straightforward. However, on REW I can't figure out what to do.
In IR windows, there is left window, window ref time, and right window. I simply want to apply a 5.5ms gate. If I put 0 for left window and 5.5ms for right window, I get a downward sloping curve that vastly underrepresents the treble output. If I use the default 125ms for left window and 5.5ms for right window, I get something comparable to ARTA and HolmImpulse but still doesn't seem quite right. And certainly the frequency resolution isn't 7Hz.
What should the settings be? What is this left window parameter?
Also, how do I measure the step response of the speaker for time alignment purposes? I can't see anything useful in the step response from the sine wave sweep.
Thanks