1. Home
  2. misc-audio
  3. 195889-172314

REW issues - popping, static in frequency sweep output.

Hi All,

I'm using an HP Win 10 Pro, headphone jack out via RCA adapter to the amp and a MiniDSP calibrated mic.

I've read all the help files and adjusted the sound card output to 16 bit which helped but did not eliminate the popping/static noise in the test sound. In my set up the sound card cannot be calibrated and I've adjusted everything I can find. 

Has anyone experienced the same problem and solved it?

 

Thank you. 

 

macg19
erik_squires
17,593 posts
 

Another low cost option to try, is if you have a powered USB hub.  It doesn't rely on your laptop's USB 5V supply.  

macg19 OP
1,432 posts
 

I installed ASIO drivers and while REW sees them, it doesn't produce any sound. The REW developer responded and has requested screen s shots of the sound card preferences - stay tuned. 

jpag
16 posts
 

Been a while since I have done this. Did you configure the asio settings? See link.

Configure

macg19 OP
1,432 posts
 

From REW support:

The base Java drivers only deliver 16-bit data, the EXCL device entries deliver the full capability of the device. Neither require changing the device bit depth.

You can't use a native ASIO driver because ASIO requires input and output to be on the same device. Your Java settings look fine.

Popping is typically caused by another process taking up so much CPU time that REW is shut out long enough for data to be lost. That wouldn't be affected by whether or not the mic was connected though. Latencymon can show you whether that's an issue.

macg19 OP
1,432 posts
 

Problem solved. Switched to my wife's laptop and had zero issues. 

Even after the latencymon app gave my PC the green light, the issue persisted.

Both are HPs, mine is higher spec so no clue why.

More to discover