If you work with digimodes, like me, audio settings are important. Now, with a recent upgrade of my computer I was not immidiately aware of audio input problem. For several days I had almost zero noise on 6m. I normally see some noise in the waterfall of JTDX (or WSJT-X) but not this time. At first I thought it was the change of the coax choke at my 6m antenna. But strange enough I saw noise on the IC-7300 waterfall. So after some thinking I was shure something between the radio and computer was wrong. Or some filter setting was not right. There are so many variables. So I tried some filter setting and every time I changed filter the waterfall changed to normal for 2 seconds to return to "quiet" after that.
I played some with the audio settings in W11 but had no time this morning. I thought it was some volume problem but still the waterfall looked not as what it used to be. I tried some contacts on 10m and it went well, working and receiving 6O3T on FT8 was easy. But still on the "low" noise 6m band it looked like a noise reducer or noise blanker is "on" and disturbing the noise I normally see equally over the waterfall.
After digging into W11 soundsettings again I finally found that there is a new audio enchancement feature which is set automatically on. I quickly switched it off and everything was normal again.
I'm shure others can have this problem as well. Although you will not notice this immidiately when you are looking at a crowded frequency. The only thing you notice could be traces that look odd. But you will see it especially on an empty frequency. Just my tip of the day....just check your settings.
To find the audio enhancement settings in Windows 11, go to Settings > System > Sound, select your output device (like "Microphone"), and disable the "Enhance audio" toggle.
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