Using the Latest REW Revision

[mike w]

It’s been a while since I’ve been on the forum. I haven’t been doing much in the way of audio for years (besides using it) up until now. I’ve just completed some DIY speakers this week. I attempted to measure them using REW and my Umik-1 microphone and got crazy results. The updates John M. has done in the preceding years has clearly left me behind.

In the past, I would load the Umik-1 calibration file, use the Macbook sound card “as is” without calibration and measure until my heart’s content. Based on the recent results, I’ve configured the setup wrong. My guess is that I used the laptops microphone to take measurements. See attached graph.

I went through the tutorial 1 on set up and thought I was close but apparently not.

• Do I absolutely need to calibrate the sound card or can I skip that like old times?
• For the mic cal files, why are there so many options and does one have precedence?
• Can I just delete everything but the umik-1 in the mi calibrate file column?

I’m trying to get to the most basic set up because I don’t need the precision offered or the flexibility of so many configurations.

I would appreciate any help.

 

[sam_adams]

It looks like you set the internal speakers on the MacBook as the output device. You probably will want to select the Headphone or Line Out device as the output if measuring analog devices.

 

[mike w]

Thanks for responding. The category "output device" doesn't make sense to me here. Isn't the output the signal generator from the REW app resident on the laptop? Why would you headphone as an output make anymore sense?

I'm equally happy with a response that says "none of this makes sense but do it and it works"

 

[sam_adams]

Thanks for responding. The category "output device" doesn't make sense to me here. Isn't the output the signal generator from the REW app resident on the laptop? Why would you headphone as an output make anymore sense?

I'm equally happy with a response that says "none of this makes sense but do it and it works"

The output device referred to in the preferences is the hardware audio output device on the MacBook.

 

[mike w]

Thanks Sam. I will try that tomorrow.