Help with REW on MacBook

[Firewalk61]

Hi all I’m trying to run a measurement on REW

So I have connected umik up..I understand this will be the input..I’m using a MacBook Pro to run REW..obviously when REW try’s to run the test tone to measure the output is through the MacBook. Will I need to buy a usb c cable to connect MacBook and node ultra to be able to send measuring tones to the speakers from MacBook? Or is the another way around it (as don’t have the usb long enough atm to connect whilst at listening position with umik
When I run Dirac with the umik it’s simple as Dirac is connected to the blue sound via wireless so sends the signal without cable for output

 

[Ageve]

You can use the "from file" method. Just generate a measurement signal (wav-file) (command-shift-R on a Mac) and play it back from any source. Make sure "add timing ref" is selected.

For UMIK-1 it should be 48 kHz, 16-bit (0-24000 Hz), 256k for a 5.5 second sweep (512k, 0-48000 Hz for 96 kHz with UMIK-2).

Select the generated file to the right in this window, make sure that "acoustic timing reference" is selected, and then press start. REW will wait for a signal and start recording automatically.

Remember to check the input settings for UMIK-1, and then select the same sample rate on the playback device (48 kHz).

edit: And don't forget to load the calibration file for your UMIK in REW.

 

[AnalogSteph]

Will I need to buy a usb c cable to connect MacBook and node ultra to be able to send measuring tones to the speakers from MacBook?

What is a Node Ultra? I do know a Bluesound Node and a WiiM Ultra.

I would try REW audio playback via the streamer's AirPlay device over your local WiFi network. It's limited to 16/44, but better than nothing.

 

[Sokel]

You can use the "from file" method. Just generate a measurement signal (wav-file) (command-shift-R on a Mac) and play it back from any source. Make sure "add timing ref" is selected.

For UMIK-1 it should be 48 kHz, 16-bit (0-24000 Hz), 256k for a 5.5 second sweep (512k, 0-48000 Hz for 96 kHz with UMIK-2).

View attachment 438899

Select the generated file to the right in this window, make sure that "acoustic timing reference" is selected, and then press start. REW will wait for a signal and start recording automatically.

View attachment 438900

Remember to check the input settings for UMIK-1, and then select the same sample rate on the playback device (48 kHz).

View attachment 438901

edit: And don't forget to load the calibration file for your UMIK in REW.

He should also load the sweep file to the window below the "from file" ,I usually drag 'n' drop it in there when I measure like that comparing the EQ from a media player to the raw REW measurement for example.

Edit: Oh, you already said that in other words, ok.