Static/noise with sweeps

[ss_blake]

I just installed latest REW beta on my dell Windows 10 laptop. UMIK-2 mic. HDMI out from laptop to AVR (via HDMI-In bypass on Oppo Blu ray). Followed Austin Jerry REW setup guide including ASIO4All (only devices selected are the hdmi output audio device snd and umik-2) 90 degree calibration file, 16 bit / 48hz on input and output etc.

Really odd problem.

The Measurement sweeps sound all crackly and distorted in every speaker.

However, after the Measurement window is opened, if I immediately change the output HDMI channel OR audio timing reference hdmi channel before a sweep, it sounds normal.

If the measurement window is closed and reopened, same problem with crackly / staticky sweep, until a channel is changed!

I have observed the same behavior with the REW “Generator” when making sweeps or sine wave- if the static occurs , an hdmi channel change seems to (temporarily) fix it.

I have only seen a handful of posts about this (including from 2019) but no solution.


Sent from my iPhone using Tapatalk

 

[John Mulcahy]

Probably worth trying FlexASIO to see if the same problem happens there. If not, stick with that.

 

[Moses Magnum]

Hi,

I'm getting the same problem. I've installed Flex ASIO but can't get it to load in REW. I get the error message below when I try.

"Unable to load the driver for FlexASIO due to

PortAudio device 'Microphone (Umik-1 Gain: 18dB )' not found within specified backend (minimum channel count: 1 input,0"

Any help would be greatly appreciated.

My setup is as below
PC GPU GTX670 HDMi >Denon AVC-4700. Mic is connected directly to the PC via USB, and my front speakers are being run by a Devialet Expert 200 which is connected to the Denon by pre-outs.

Thanks

 

[John Mulcahy]

Try deleting the flexasio.toml file in your home directory.

 

[Moses Magnum]

Thank you, that fixed it.